Introduced in season 1 •
Patrick "Matches" Malone (portrayed by Danny Schoch in the first appearance,
Michael Bowen in the second appearance) – A philosophical hitman-for-hire who is one of Gotham City's deadliest murderers. He is the masked man in shiny shoes who killed Thomas and Martha Wayne in front of Bruce Wayne and a nearby Selina Kyle. This has led Detective James Gordon into finding him in order to bring him to justice. Under torture by an operative of Bruce Wayne, Silver St. Cloud revealed the identity of the killer to be Patrick Malone. When Bruce finally confronts Patrick with his suspicions, Patrick stated that he was tired of doing bad things while barely recalling if he killed Bruce's parents and Bruce decides not to kill Patrick. Using the gun that Bruce left behind, Patrick committed suicide by the time James Gordon caught up with Bruce. Gordon and Bullock were left wondering who could have hired Malone to kill Thomas and Martha Wayne. It is later revealed that Hugo Strange contracted Patrick to kill the Waynes on behalf of the Court of Owls. •
Patti (portrayed by
Lili Taylor) – A female minion of Dollmaker who alongside Doug oversaw the child trafficking ring that involved abducting street kids and shipping them overseas to Dollmaker. Their plot was foiled by the Gotham City Police Department. •
Doug (portrayed by
Frank Whaley) – A minion of Dollmaker who alongside Patti oversaw the child trafficking ring that involved abducting street kids and shipping them overseas to Dollmaker. Their plot was foiled by the Gotham City Police Department. •
Mackey (portrayed by
Kyle Massey) – A street kid who knows Selina Kyle. It was him who informed James Gordon and Harvey Bullock about Patti and Doug's child trafficking plot as he had evaded capture. Harvey Bullock and Alfred Pennyworth later talk with Mackey about where Selina Kyle might be heading after she and Bruce fled during Copperhead's attack on Wayne Manor. Upon being bribed by Alfred Pennyworth, Mackey told Harvey and Alfred that Selina will head to her fence and suggests they speak to Fish Mooney about where to find Selina's fence. •
Balloonman / Davis Lamond (portrayed by
Dan Bakkedahl) – A social worker for Gotham Juvenile Services who secretly operates as a vigilante that murders corrupt people by attaching them to weather balloons causing them to float to the Earth's atmosphere. His targets include Ronald Danzer (a businessman who scammed countless people in a ponzi scheme), Lt. Bill Cranston of the GCPD (who was prone to violence), and Cardinal Quinn (who committed accounts of child molestation). He is defeated by Gordon and Bullock and loaded into the ambulance before he can make plans to target Mayor Aubrey James for the plans he made for Gotham's street children. •
Bill Cranston (portrayed by
James Colby) – A corrupt police lieutenant at the Gotham City Police Department who is prone to violence. He is killed by Balloonman. •
Hitman (portrayed by
Hakeem Kae-Kazim) – An unidentified hitman-for-hire who stole the identity of Richard Gladwell upon murdering him. Using Richard's trademark telescopic weapon, the hitman was responsible for killing Councilman Ron Jenkins and his aide on Sal Maroni's orders. Then he burned Councilman Zeller alive on the Arkham Asylum grounds under Carmine Falcone's orders. Before he can kill Aubrey James on Sal Maroni's orders, the hitman is gunned down by James Gordon and Harvey Bullock. •
Lou (portrayed by James Georgiades) – The manager of Bamonte's Restaurant who is a good friend of Sal Maroni and was the one who hired Oswald Cobblepot to work as the restaurant's new dishwasher. He is later killed by robbers that were secretly hired by Cobblepot. •
Molly Mathis (portrayed by Sharon Washington) – A middle management worker at
Wayne Enterprises who is part of the illegal activities done by some of the company's members. She also oversees the pharmaceutical company WellZyn which is a subsidiary of Wayne Enterprises. •
Stan Potolsky (portrayed by
Daniel London) – A biochemist that formerly worked at WellZyn and created the drug known as Viper (a prototype version of Venom). During a confrontation between James Gordon and Harvey Bullock, Stan Potolsky tipped them off about Warehouse 39 before committing suicide by falling off the roof. •
Nikolai (portrayed by
Jeremy Davidson) – The leader of the Russian mafia in Gotham City that is under Carmine Falcone's power. He secretly worked with Fish Mooney in plans to overthrow Falcone. Nikolai is later killed by Oswald Cobblepot during the Maroni Crime Family's raid on his hideout. •
Dix (portrayed by
Dan Hedaya) – A former homicide detective and partner of Harvey Bullock who was crippled in the line of duty by Randall Milkie. When Gotham City was declared "no man's land", Dix became a target of Jane Doe ever since, Harvey, Boggs, and Lewis had arrested her mother Victoria Cartwright. Dix was strangled to death by Jane Doe in the form of Harvey. •
Dr. Marks (portrayed by
Susan Misner) – A hypnotherapist who hypnotized Randall Milkie and Raymond Earl into becoming the "Spirit of the Goat" to kill people in the belief that negative re-enforcement would act as therapy for Gotham. She was shot in the leg and arrested by Harvey Bullock. •
Raymond Earl / The Goat (portrayed by
Christopher James Baker) – One of the few people to have been hypnotized by Dr. Marks into becoming a serial killer known as "the Goat" as part of a conspiracy. Earl believes that he is the embodiment of "the Spirit of the Goat" and that it compels him to murder the daughters of wealthy citizens of Gotham City. •
Richard Sionis / The Mask (portrayed by
Todd Stashwick) – The corrupt
CEO of Sionis Investments who owns parts of Gotham City. He secretly ran an underground fight club while wearing a black mask before he was publicly exposed in a struggle with James Gordon and arrested by the police. He ended up incarcerated at Arkham Asylum. Richard is sprung from Arkham by Theo Galavan's henchmen to serve him. Sionis declined the offer and is whip-strangled and repeatedly stabbed to death by Tabitha Galavan. This was part of Theo's warning to the other freed Arkham inmates about the fate of those who do not want to serve the Galavans. •
Tommy Elliot (portrayed by Cole Vallis in season 1, Gordon Winarick in season 4) – During Bruce Wayne's brief time as a student at Anders Preparatory Academy, fellow student Tommy Elliot bullied and teased Wayne. When Tommy was confronted by Wayne outside his house, Bruce later beats up Tommy Elliot with his
late father's watch wrapped around his fist. Tommy later became Bruce's friend and no longer taunts him. •
Ian Hargrove (portrayed by
Leslie Odom Jr.) – An insane bombmaker who was originally incarcerated at
Blackgate Penitentiary. While being transferred to a mental hospital, the prison van he was in was intercepted by the Russian Mob led by Gregor Kasyanov where they threatened him to make bombs in exchange that his brother John does not become their target. Upon ending up in police custody when most of the Russian Mob present were killed by a bomb that was set off by Butch Gilzean, Ian Hargrove was among the patients of the recently opened Arkham Asylum. •
Gregor Kasyanov (portrayed by Steve Cirbus) – A lieutenant in the Russian Mob who later succeeded Nikolai upon his death. In retaliation to Nikolai's death, Gregor Kasyanov had Ian Hargrove's medical hospital transport intercepted so that he can have Ian make bombs for him in exchange that they do not do away with his brother John. With these bombs, Gregor and his men hit Falcone's money supply with the funds being blown up by Butch Gilzean and leaving the surviving Russians in police custody. Gregor was among the Russians that were caught in that explosion. •
Larissa Diaz / Copperhead (portrayed by
Lesley-Ann Brandt) – A contorting assassin hired by an as-yet-unknown person to kill witnesses to the Wayne murders. •
Jimmy Saviano (portrayed by
John Enos III) – The underboss of the Falcone crime family who is a childhood friend of Butch Gilzean. He is later killed by Butch Gilzean over a bad deal. •
Gerry Lang (portrayed by
Isiah Whitlock Jr.) – The strict director of Arkham Asylum when it reopened. He oversees Jim Gordon after Mayor Aubrey James reassigns him to guard duty at Arkham Asylum. Gerry was later killed by Jack Buchinsky and Aaron Danzig when he stumbled onto their escape plot. He was later succeeded by Hugo Strange. •
Electrocutioner / Jack Buchinsky (portrayed by
Christopher Heyerdahl) – A former mafia bank robber who uses electricity-based weapons and technology in his vendetta against Sal Maroni. Following his arrest, he passes himself off as an inmate of
Arkham Asylum under the alias "Jack Gruber" in which he experiments on other inmates with
electroconvulsive therapy. He escapes from Arkham Asylum with his ideal
prototype of a
factotum named Aaron Danzig after killing two guards and the asylum's director Gerry Lang. Buchinsky is later recaptured in a struggle with James Gordon after he uses liquid to short out Buchinsky's gear during his attack on the Gotham City Police Department. •
Dorothy Duncan (portrayed by
Allyce Beasley) – An Arkham Asylum patient who posed as a nurse. She was trampled to death by the inmates amongst the chaos caused by Jack Buchinsky. •
Aaron Danzig (portrayed by Kevin McCormick) – An Arkham Asylum inmate on whom Jack Buchinsky experimented. He later escaped with him to assist in his revenge on Sal Maroni. Both of them are defeated by James Gordon. •
Trope (portrayed by Peter Brensinger) – A member of the first Red Hood Gang. He was the third person to become the Red Hood upon claiming it from Clyde Destro. During the Red Hood Gang's next heist, Trope and the remaining gun members were gunned down by the police. •
Regan (portrayed by Kevin T. Collins) – A member of the first Red Hood Gang. He was killed in a gun fight with the police. •
Haskins (portrayed by Peter Albrink) – A member of the first Red Hood Gang. He was killed in a gun fight with the police. •
Unidentified Red Hood Gang Leader (portrayed by
Michael Stoyanov) – The unnamed leader of the second Red Hood Gang. He and his fellow Red Hood Gang members were killed by Butch Gilzean. •
Francis Dulmacher / The Dollmaker (portrayed by
Colm Feore) – Dr. Francis Dulmacher is a European
mad scientist with little moral code who is the mastermind behind the abductions of people for the purpose of harvesting their organs for his surgical experiments and for his underground organ trade business. The Dollmaker's experiments include the making of dolls out of human flesh, although he claims to have the means to resurrect the dead. After Fish Mooney started her escape attempt from the island, Fish's allies beat Dulmacher down. •
Thomas Schmidt (portrayed by
Elliot Villar) – A guard that works for Dollmaker. He is charged with guarding the Dollmaker's prisoners. •
Office Manager (portrayed by
Jeffrey Combs) – He is the unnamed office manager working for
Dollmaker at his island facility to oversee the harvesting of body parts from the Dollmaker's prisoners. After Mooney ripped out her eye and destroyed it to avoid being used for parts like the other prisoners, Dollmaker demoted him for his failure and punished him by disassembling his body and reassembling it with different female body parts. The former office manager's fate was Dollmaker's way of showing Mooney how anyone who fails him can still be of use. •
Reginald "Reggie" Payne (portrayed by
David O'Hara,
Gotham; James Lewis,
Pennyworth) – An old comrade of Alfred's from the
Special Air Service who is secretly working for the
board of directors of
Wayne Enterprises (namely Molly Mathis and Sid Bunderslaw) as a
private investigator. When Alfred stumbled upon Reginald doing something suspicious by the board where Bruce was doing his investigation, Reginald got surprised and stabbed Alfred which caused him to be hospitalized after Reginald fled. After telling Bruce Wayne that Sid Bunderslaw was behind the investigation with Bruce hesitant to push Reginald out the window while getting his drugs that was hanging outside the window, Reginald was pushed out of the window to his death by Selina Kyle to keep him from telling Sid Bunderslaw about Bruce's suspicions of him. •
Miriam Loeb (portrayed by
Nicholle Tom) – The mentally disturbed daughter of Gillian Loeb who in her earlier life had killed her mother because she disrupted her "performance". Loeb covered up her daughter's actions to make it look like an accident and had her placed in the attic of a house he owned that is inhabited by Jude and Marge who work for Loeb. When Gordon and Bullock discovered her and learned of her past, Gordon used this as leverage on Loeb where he wants Bullock's file and Arnold Flass tried for his crimes in exchange that Miriam does not end up in Arkham Asylum. Loeb had to go along with the deal. •
Sid Bunderslaw (portrayed by
Michael Potts) – The Director of Physical Operations at Wayne Enterprises who is a conspirator with Molly Mathis. He and Mathis hired Reggie Payne to break into Wayne Manor and find out how much Bruce Wayne knows about their criminal activity. Sid Bunderslaw is later abducted by Oswald Cobblepot on Theo Galavan's behalf where Tabitha rips out one of his eyes so that it can be used for the Pike Brothers' heist on a building owned by Wayne Enterprises. •
Jason Lennon / The Ogre (portrayed by
Milo Ventimiglia) – A young, wealthy and seductive serial killer known as Jason Lennon lures women and subjects them to "tests" as he searches for the perfect mate. He then murders the women once they fail to meet his impossible standards. His birth name is Jason Skolimski where he is the son of Jacob Skolimski. Despite having killed at least a dozen women, no one on the GCPD pursued him after he murdered the wife of one detective and threatened to do the same to the loved one(s) of any policeman who attempted to catch him. After James Gordon pursued him, Lennon sought out Barbara Kean to kill her but was unable to do so after he became obsessed with her and came to believe she was the "perfect mate" for whom he had been ostensibly searching. After being tracked down, Jason is shot dead by James Gordon. However, his insanity lives on in the traumatized Barbara whom he forced to murder her own parents. •
Ben Mueller (portrayed by
Laurence Mason) – A police detective that once investigated the Ogre. •
Jacob Skolimski (portrayed by
Daniel Davis) – A butler for Constance van Groot who is the father of Jason. After Jason killed Constance for not making her his official son, Jacob attempted to commit suicide by hanging only to be stopped by James Gordon and Harvey Bullock. Jacob cooperated with the Gordon and Bullock and told them about Jason's past.
Introduced in season 2 •
Zaardon the Soul Reaper (portrayed by David Fierro) – A mentally ill amateur supervillain who was placed in Arkham Asylum after assaulting innocent civilians and being defeated by James Gordon. He was actually used by his employer Theo Galavan as part of the Arkham Asylum breakout where his body expired upon emitting liquid knock-out gas from his mouth that knocked out everyone else in the room. •
Franks (portrayed by Michael Barra) – A member of the Gotham City Police Department. He once showed up late to stop Zaardon. Franks is later among the police officers that were temporarily mind-controlled by Ivy Pepper. •
Robert Greenwood (portrayed by
Dustin Ybarra) – A homicidal cannibal incarcerated in Arkham Asylum under the charges of murdering and eating over a dozen women. He along with several other inmates escaped the asylum with the aid of Tabitha Galavan to form Theo Galavan's Maniax. During the ambush on the Gotham City Police Department, Greenwood was killed by Jerome Valeska after he said something that Jerome wanted to say. •
Aaron Helzinger (portrayed by
Stink Fisher) – A villainous muscular aggressive man with limited brain function who was incarcerated at Arkham Asylum for murdering his family with his bare hands until he escaped the asylum with the help of Tabitha Galavan to form Theo Galavan's Maniax. While the other Maniax were attacking the Gotham City Police Department, Aaron accompanied Barbara Kean into ambushing Gordon where he managed to beat him up. At some point following Theo Galavan's death, Aaron was recaptured and re-incarcerated at Arkham Asylum. When Hugo Strange puts Oswald Cobblepot through the "ice cream" therapy in Arkham Asylum's cafeteria, Aaron attacked Oswald out of anger that nobody was offered any ice cream. Upon not seeing Oswald back, Hugo sent the guards to break up the attack. Oswald was later thrown in the same room with a chained-up Aaron so that Hugo can see if Oswald would kill him. Hugo sees that he did not kill Aaron and declares that Oswald is sane. Aaron is later brought to Theo Galavan by Hugo Strange as Theo hits him with the chest containing the recently forged Sword of Sin. •
Arnold Dobkins (portrayed by Will Brill) – A rapist who was incarcerated at Arkham Asylum. He was one of the many inmates to have been broken out of the asylum by Tabitha Galavan to form Theo Galavan's Maniax. During a massacre attempt on a bus filled with cheerleaders from Gotham City High School, Dobkins was subdued by Gordon and sniped by Tabitha to keep him from telling the Gotham City Police Department about Theo's involvement. •
Harrison Kane (portrayed by
Norm Lewis) – The
deputy mayor of Gotham City under Mayor Aubrey James. During a fundraiser event at Gotham Children's Hospital, Harrison Kane was killed onstage by Jerome Valeska disguised as a magician at the start of the hostage crisis. •
Gus Freeman (portrayed by Danny Johnson) – An instructor at Gotham Police Academy who previously had James Gordon as a cadet. Gus was approached by Gordon and Nathaniel Barnes who were looking for promising cadets. He was later present when Barnes swore the graduates in as members of the GCPD Strike Force. •
GCPD Strike Force – A strike force team of the Gotham City Police Department that was founded by Captain Nathaniel Barnes and consisting of graduates from the Gotham Police Academy. •
Josie Mac (portrayed by Paulina Singer) – One of the several young police trainees to join Captain Nathaniel Barnes' strike force. While protecting mayoral candidate Randall Hobbs, Josie was shot by Victor Zsasz where the bullet hit her bulletproof vest enough to stun her. She is the only surviving member of the GCPD Strike Force. •
Luke Garrett (portrayed by
Lenny Platt) – One of the several young police trainees to join Captain Nathaniel Barnes' strike force. He gets burned by Firefly during her fight with Gordon and Bullock where he later died in the hospital. •
Sal Martinez (portrayed by Lucas Salvagno) – One of the several young police trainees to join Captain Nathaniel Barnes' strike force. He is later killed by Tabitha Galavan when he tried to arrest her during the fight between Oswald Cobblepot's gang and the Gotham City Police Department. •
Carl Pinkney (portrayed by Ian Quinlan) – One of the several young police trainees to join Captain Nathaniel Barnes' strike force. He is killed by Edward Nygma using a crowbar on him to frame Gordon for the murder. •
Pike Brothers – The Pike Brothers are a group of arsonists that were loyal to Fish Mooney. They are nicknamed the "Firebugs of the Narrows" and their force their stepsister Bridgit to do their dirty work in exchange for a roof over her head. •
Joe Pike (portrayed by
Leo Fitzpatrick) – The leader of the Pike Brothers and the abusive stepbrother of Bridgit Pike. He is later burned to death by Firefly where he dies by the time Gordon and Bullock arrive. •
Cale Pike (portrayed by Ari McKay Wilford) – Member of the Pike Brothers and the abusive stepbrother of Bridgit Pike. He is later burned to death by Firefly. •
Evan Pike (portrayed by
Noah Robbins) – Member of the Pike Brothers and the abusive stepbrother of Bridget Pike. While buying napalm at the Merc for the Pike Brothers' latest heist, Evan was cornered by James Gordon and Nathaniel Barnes where their shooting of him set off the napalm that he was going to smuggle out resulting in Evan's body getting blown up. Evan's death caused Joe and Cale to drag Bridgit into their heist. •
The Lady (portrayed by
Michelle Gomez) – The unnamed leader of an organization of assassins with a bar serving as a front for their secret hideout. Tabitha Galavan once enlisted her to have her assassins kill Jim Gordon. After most of her clients were killed by Jim Gordon and Nathaniel Barnes, The Lady had gone out of business. Barbara later helps Jim get info from The Lady that it was "The Philosopher" that contracted the hit on Thomas Wayne and Martha Wayne. •
Eduardo Flamingo (portrayed by
Raúl Castillo) – One of Gotham City's most dangerous assassins, the Flamingo is a spiked-chain wielding cannibal who sees killing as an artform. He is hired by "The Lady" on Tabitha's behalf to kill Gordon, but fails and is arrested. Despite the efforts of the nearby police officers at the Gotham City Police Department, Eduardo kills Officer Katherine Parks by biting into her before he is put behind bars. •
Tom "The Knife" (portrayed by
Tommy Flanagan) – A dangerous hitman who uses a humorous stylish facade to cover up his murderous tendencies. He and his men were secretly hired by Bruce Wayne and Selina Kyle to extract the name of the man who killed Thomas and Martha Wayne by pretending to kidnap Bruce and abducting Silver St. Cloud and "interrogating" them separately. The pressure leads Silver to reveal the name "M. Malone" as the killer of Thomas and Martha Wayne. •
Nora Fries (portrayed by
Kristen Hager) – The wife of Victor Fries who is stricken with a worsening illness. When the police trace the pharmaceutical order for Nora Fries' prescription, the police take Nora into their custody moments after she found the frozen humans Victor has been experimenting with. She told Gordon and Bullock that Victor did the abductions in order to keep her from dying. Before Victor tried to freeze her, Nora committed suicide by switching the cryogenic chemicals with an earlier batch that failed. •
Terence "Cupcake" Shaw (portrayed by
Jamar Greene) – The former partner of Patrick "Matches" Malone until he was incarcerated upon Patrick ratting him out. After spending 10 years in prison, he became the leader of the
Mutants gang and established a fight area where Alfred had to fight him in order to get an idea on how to find Patrick. After being defeated by Alfred, Terence tells Alfred to speak with Jeri. •
Jeri (portrayed by
Lori Petty) – The flamboyant and enigmatic hostess of an underground club where mass murder and art are celebrated in equal measure. She has been an acquaintance with Patrick "Matches" Malone and Terrence "Cupcake" Shaw. Jeri tells Bruce where he can find Patrick and then provides a diversion to keep James Gordon from interfering. This gets her arrested when the police arrive where she is forced to tell where Bruce went to. •
Elijah Van Dahl (portrayed by
Paul Reubens) – The father of Oswald Cobblepot, the ex-lover of Gertrud Kapelpot, the husband of Grace Van Dahl, and the stepfather of Charles Van Dahl and Sasha Van Dahl. When Gertrud used to work as a cook for Elijah's parents, he and Gertrud fell in love in secret. Elijah first met Oswald where he was visiting Gertrud's grave. He then took Oswald to his house where he meets his stepmother and stepsiblings as Elijah does a toast to their family. While having dinner with his family, Elijah told Oswald that he is his only blood relative. He later tells Oswald that he has a hole medical condition and is not interested in what bad transgressions Oswald has been through despite the claims of Grace, Charles, and Sasha. Elijah later dies from poisoned wine that Grace, Charles, and Sasha poisoned, intending to poison Oswald. His death is later avenged by Oswald. Riddler later hired Basil Karlo to masquerade as part of a plot to break Oswald's sanity. It should also be noted that Paul Reubens also portrayed "Tucker Cobblepot" who also was the biological father of Penguin in the comics and the 1992 film
Batman Returns. •
Sonny Gilzean (portrayed by Paul Pilcz) – The nephew of Butch Gilzean. After he caught Bruce and Selina trying to steal from him, Sonny violently beat Bruce. In retaliation, Bruce subjected Sonny to a worse beating before escaping with Selina. Bruce later fought Sonny and his friends again where they were attacking Selina. This time, Bruce fights them off. •
Grace Van Dahl (portrayed by
Melinda Clarke) – Superficially, a cultured hostess and socialite who is married to Elijah Van Dahl, the mother of Charles Van Dahl and Sasha Van Dahl, and the stepmother of Oswald Cobblepot. In reality, she is desperate for money and power where she comes up with devious plots to get them. Grace was a former diner waitress who first met Elijah at the diner and gave her refuge. She had secretly been switching his heart medicine with
breath mints, to inherit his money. Following Elijah's death, Grace allowed Oswald to remain with her as a servant. Upon figuring out that Grace had a hand in his father's untimely death, Oswald takes his revenge on Grace by killing her after tricking her into eating a roast he made from her dead children. Her head is later used as a centerpiece of the Van Dahl household. •
Charles Van Dahl (portrayed by Justin Mark) – The son of Grace Van Dahl, the brother of Sasha Van Dahl, the stepson of Elijah Van Dahl and the stepbrother of Oswald Cobblepot. Charles appears to have a good heart (even once complimenting Oswald's cooking), but is easily pressured by his mother into doing her bidding. He is later killed by Oswald offscreen and cooked into a roast. •
Sasha Van Dahl (portrayed by Kaley Ronayne) – The daughter of Grace Van Dahl, sister of Charles Van Dahl, stepdaughter of Elijah Van Dahl and the stepsister of Oswald Cobblepot. She is later killed by Oswald offscreen and cooked into a roast. •
Carlson Grey (portrayed by
Ned Bellamy) – The corrupt
prison warden of Blackgate Penitentiary who is good friends with Gillian Loeb. •
Wilson Bishop (portrayed by Marc Damon Johnson) – A prison guard that James Gordon befriended during his time a Blackgate Penitentiary. •
Peter "Puck" Davies (portrayed by Peter Park Kendall) – A young man incarcerated at Blackgate Penitentiary. After Puck tries to defend Gordon from other inmates, he gets beaten in return. He later reveals that his younger sister was rescued by Gordon from Dollmaker's minions and that he was sent to prison after trying to steal a car to meet his girlfriend. Looking at Gordon as a hero, Gordon later comes to break Puck out of prison. After that was done, Puck later dies peacefully from his injuries. •
Scale Skin Man (portrayed by Radu Spinghel) – An unidentified man with scaly skin who is one of Indian Hill's experiments. After escaping from the Indian Hill bus with the other experiments, the Scale Skin Man joined up with Fish Mooney's gang. •
Basil Karlo (portrayed by Brian McManamon) – A deceased actor who was revived by Hugo Strange and Ethel Peabody at the Indian Hill facility. Thanks to the octopus DNA, he can now stretch his face. Hugo Strange used him to pose as Jim Gordon until his ruse was exposed by Barbara Kean. Basil spoke poorly about Lee, which Jim would never do, prompting a slap to his face that revealed its stretching abilities. Basil later appeared to help Edward Nygma in his plot to break Oswald Cobblepot's sanity.
Introduced in season 3 •
Marino / Ridgeback Monster (portrayed by Michael Montgomery) – A humanoid with ridge-like bony plates on his head and back that is one of the experiments that escaped from the Indian Hill bus. During his fight with James Gordon, the Ridgeback Monster was struck down by an approaching truck. Nathaniel Barnes stated that his men are still "picking up the pieces" of the monster. His real name was revealed in the second tie-in novel
Gotham: City of Monsters. •
Marv (portrayed by Victor Pagan) – A male who is one of the Indian Hill experiments that escaped from the Indian Hill bus and joined up with Fish Mooney's gang. His touch is described to be a reverse effect of the Fountain of Youth where anyone he touches turns old and dies. Marv was responsible for killing Ethel Peabody and briefly touched Ivy Pepper enough to age her to a teenager. During Oswald Cobblepot's confrontation with Fish Mooney at the place where Hugo Strange was incarcerated, Cobblepot told Marv to take his leave from the area. •
Nancy (portrayed by Bianca Rutigliano) – A mouth mask-wearing female who is one of the Indian Hill experiments that escaped from the Indian Hill bus. She later appeared as a member of Fish Mooney's gang. Nancy is later killed by an angry mob amassed by Penguin with her body later being burned in the bonfire. •
Sid (portrayed by Michael Lorz) – A white-haired male with super-speed who is one of the Indian Hill experiments that escaped from the Indian Hill bus and joined up with Fish Mooney's gang. Sid is later killed by an angry mob amassed by Penguin with his body later being burned in the bonfire. •
Alice Tetch (portrayed by
Naian Gonzalez Norvind) – Jervis Tetch's sister who has a virus in her blood stream due to being experimented on by Professor Strange. She was freed from Strange's laboratory at Indian Hill and briefly resided with Fish Mooney before the two went their separate ways. Jervis hired Gordon to find Alice. When Jervis attempted to hypnotise Gordon into suicide by walking off the roof of The Sirens, Alice intervened where she did not want to go with Jervis enough to try to shoot him. While Jervis escapes, Alice is handcuffed by Gordon. After being abducted by Jervis and the Deevers, Alice's blood is harvested by Jervis. During Gordon and Bullock's fight with Jervis and the remaining two Deevers, Alice tries to escape from her brother and accidentally falls on a pipe, impaling her. Though one of her blood samples on the pipe fell onto Nathaniel Barnes. Jervis later stole Alice's body from the morgue and harvested her blood where he planned to use it alongside the Red Queen plant to put in the drinks at the Gotham City Founders' Dinner. •
The Terrible Tweeds – A group of five wrestlers that were hypnotized into doing Jervis Tetch's bidding. While Dumfree and Deever helped Jervis to abduct Alice from police custody, two unnamed members were killed during the fight with the police while the third one was apprehended. •
Dumfree Tweed (portrayed by Adam Petchel) – A member of the Terrible Tweeds and the brother of Deever Tweed. After being hypnotized, he and Deever helped Jervis to take off Alice Tetch out of the GCPD. Following Alice's suicide, Dumfree and Deever escape with Jervis after the police arrive. After an attempt to hijack the Gotham City Founders' Dinner, Dumfree, Deever, and Jervis are arrested by the GCPD and are remanded to Arkham Asylum. •
Deever Tweed (portrayed by
Happy Anderson) – A member of the Terrible Tweeds and the brother of Dumfree Tweed. After being hypnotized, he and Dumfree helped Jervis to take off Alice Tetch out of the GCPD. Following Alice's suicide, Deever and Dumfree escape with Jervis after the police arrive. After an attempt to hijack the Gotham City Founders' Dinner, Deever, Dumfree, and Jervis are arrested by the GCPD and are remanded to Arkham Asylum. •
Isabella (portrayed by Chelsea Spack) – A woman who resembles Kristen Kringle. After Oswald Cobblepot tries to confess his love for Edward Nygma, he thinks it will be better said over dinner. However, while Edward is picking out wine for the dinner, he meets Isabella and is dumbstruck by how much she looks like his ex-girlfriend Kristen Kringle, whom he murdered. The next day, it is revealed the two had a connection for each other and Edward invites her for dinner at the Mayor's mansion. However, when Oswald finds out that Edward met Isabella he tries to split them up by revealing to Isabella at her job, that Edward went to Arkham which scares Isabella. Later, during the date when Edward tries to reveal to Isabella that he killed Kringle, Isabella confesses she already knew. Isabella says she has been waiting for a man like Edward to come into her life and the two kiss just as Oswald walks in. Later, when Edward makes her breakfast Isabella reveals she is going to a librarians convention, and while reading Edward her schedule she puts on her glasses which scare Edward because of how much they look like Kringle's. While in Isabella's bathroom Edward sees a hallucination of Kringle telling him that he will hurt Isabella just like he hurt her. Edward becomes scared of what he will do to Isabella and has Oswald break up with her for him. Oswald tells Isabella not to see Edward again, which shocks Isabella. Isabella soon finds out that Edward does not want to see her because he's scared he hurt her like he did Kringle, and that Oswald loves Edward. After Isabella tells Oswald she is not leaving Edward, Oswald leaves angrily telling her he warned her. Later, when Edward comes to see Isabella a final time he finds her dressed as Kristen Kringle. Isabella then has Edward put his hands on her neck, and the two then kiss. Finally, when Edward returns to Oswald he reveals that things are going to be just fine with Isabella. Once Edward leaves Oswald reveals he had one of his goons cut her brakes. Meanwhile across town Isabella starts heading right for a train, but cannot stop because her brakes do not work, and crashes right into the train killing her. Edward is crushed by Isabella's death and finds out that her brakes were cut. After finding out that it was Oswald, Edward tries to get his revenge on him multiple times. •
Campos (portrayed by Flora Diaz) – A police detective. •
McGregor (portrayed by an uncredited actor) – An archbishop in Gotham City who attended Mayor Oswald Cobblepot's banquet that was crashed by Jervis Tetch. When he is later among those who are taken captive by Jerome Valeska and his allies, Archbishop McGregor and Commissioner Reynolds are killed by the neck bombs on them to serve as examples when Jerome demands a ransom of Bruce Wayne and Jeremiah Valeska. •
Peter Gordon (portrayed by
Michael Park) – The father of James Gordon and brother of Frank Gordon. He is a former district attorney who was killed in a car crash caused by a drunk driver who was actually hired by Frank Gordon in order to keep him from exposing the Court of Owls. Upon being exposed to the Red Queen plant by Jervis Tetch, Gordon went through the psychedelic trip which ended with him encountering his father. What Peter told his son was enough to get him to rejoin the Gotham City Police Department. Frank confirmed that Peter was a member of the Court of Owls before he saw through their lies and the car crash was orchestrated by them. •
Whisper Gang – A group of smugglers that are against the Court of Owls. •
Luka Volk (portrayed by
Costa Ronin) – The leader of the Whisper Gang and brother of Jacob. He is subsequently killed by Talon. •
Jacob Volk (portrayed by Julien Seredowych) – A member of the Whisper Gang and brother of Luka. He is subsequently killed by Talon. •
Maria Kyle (portrayed by
Ivana Milicevic) – The estranged mother of Selina Kyle. She shows up in person following Bruce Wayne, Alfred Pennyworth, and Selina Kyle's fight with Talon, helping them overpower the assassin and escape with their lives. She apparently wants to reconnect with her daughter after having abandoned her eleven years ago, and is revealed to owe a debt of $200,000 to a criminal named Cole Clemons. She also strikes up a small friendship with Alfred, who appeared to have been attracted to her much in the same way Bruce is attracted to Selina. Bruce offers to pay Maria the money, but Maria is later revealed to have been in a con with Cole, plotting to use Selina's relationship with Bruce to get money without truly wanting to reconnect with her daughter at all. Confronting them at their hotel, and furious at being deceived and unwanted by her own mother, Selina tells her mother and Cole to never come back to Gotham. •
Dwight Pollard (portrayed by
David Dastmalchian) – A former Indian Hill scientist and morgue worker who experimented on dead corpses. He is revealed to have Jerome Valeska's corpse alongside the other corpses. Following what appeared to be a failed revival of Jerome, Dwight cuts off Jerome's face and poses as him to lead Jerome's followers into taking Channel 9 hostage. Despite being defeated by Gordon, Jerome makes off with him where he staples his face back on. After broadcasting to his followers using stolen Channel 9 equipment, Jerome uses explosives to kill Dwight which also blew up the power company enough to plunge Gotham City into a blackout. •
Gus (portrayed by Kaipo Schwab) – A former post office worker that helped Dwight Pollard in his experiments. Upon being tipped off about Gordon and the police coming by Dwight's mole Andrew Dove, Gus tells Dwight about this and suggests that they abandon the project only for Gus to be shocked by an electrical wire held by Dwight. •
Andrew Dove (portrayed by James Mount) – A police officer who is secretly a mole for Dwight Pollard. •
Cole Clemons (portrayed by P.J. Marshall) – A criminal that Maria Kyle is associated with. •
Armand (portrayed by Zoran Korach) – A thug who accompanied Gabriel in a plot to auction Penguin to whoever wants to kill him. Ivy Pepper used her perfume on him which led to Gabriel, Armand, and those with them getting killed by Penguin.
Introduced in season 4 •
Merton (portrayed by Michael Buscemi) – The co-leader of a gang that opposes Penguin and bribed Warden Reed into releasing Jonathan Crane into his gang's custody. During their planned attack on the Iceberg Lounge, Merton and those with him are defeated by Gordon, Bullock, Zsasz, Bruce, and Alfred. •
Grady Harris (portrayed by
Michael Maize) – The co-leader of a gang alongside his cousin Merton that opposes Penguin and bribed Warden Reed into releasing Jonathan Crane into his gang's custody. After he gets away following the failed attack on the Iceberg Lounge, Grady returns to the hideout where Crane has become Scarecrow. The police later find his body set up like a scarecrow as he states that Scarecrow is coming. •
Reed (portrayed by
Damian Young) – The abusive warden of Gotham Asylum who is bribed by Grady Harris and Merton in releasing Jonathan Crane into his custody. When Crane became Scarecrow, he returned to Gotham Asylum and exposed Reed to fear gas causing him to experience his fear of clowns. •
Burke (portrayed by
Larry Pine) – The Mayor of Gotham City who succeeds Aubrey James. He and the unnamed police commissioner had to agree with Oswald Cobblepot on the crime license pitch. After Jim Gordon saved some police officers and some of Cobblepot's men from Professor Pyg's trap, Mayor Burke promoted Gordon to police captain at Sofia Falcone's suggestion. During Gotham City's evacuation during Jeremiah Valeska's bomb threat upon his return, Mayor Burke, his secretary, and the unnamed commissioner that succeeded Reynolds noticed Ra's al Ghul outside Gotham City Hall as they are killed by one of Jeremiah Valeska's bombs. •
Reynolds (portrayed by Harry Sutton Jr.) – The police commissioner of the Gotham City Police Department. When he is among those who are taken captive by Jerome Valeska and his allies, Commissioner Reynolds and Archbishop McGregor are killed by the neck bombs on them to serve as examples when Jerome demands a ransom of Bruce Wayne and Jeremiah Valeska. •
Myrtle Jenkins (portrayed by Ilana Becker) – A bar maid at Iceberg Lounge who frees her former classmate Edward Nygma from his icy prison. After helping him recuperate, Myrtle discovered that Nygma had brain damage from being frozen too long. Following Nygma getting away, Oswald Cobblepot and Victor Zsasz tracked Nygma to Myrtle's apartment where they learned that Nygma is not here. Before shooting Myrtle, Zsasz complimented her outfit. •
Anubis (portrayed by Anthony Rodriguez) – A feral member of the League of Shadows with a dog-like personality who is the group's tracker. He and the Hunter were sent by Ra's al Ghul to go after Alex Winthrop when he had the embalming knife that Ra's al Ghul sought out. During the fight at the museum, Gordon threw a bone out the window which Anubis followed. •
The Hunter (portrayed by Owen Harn) – An unnamed hunter and member of the League of Shadows that speaks a foreign language and is Anubis' handler. He and Anubis were sent by Ra's al Ghul to go after Alex Winthrop when he had the embalming knife that Ra's al Ghul sought out. During the fight at the museum. the Hunter was stabbed by Gordon using a rib bone. •
Niles Winthrop (portrayed by
Dakin Matthews) – The curator of the Gotham Natural History Museum whom Bruce comes in contact with when researching an ancient embalming knife. He was killed by Ra's al Ghul who was looking for the embalming knife. •
Alex Winthrop (portrayed by
Benjamin Stockham) – The grandson of Niles Winthrop whose parents are traveling. He goes on the run from Ra's al Ghul's men following his grandfather's murder. During Bruce and Gordon's fight with some of the League of Shadows' minions, Alex is killed by Ra's al Ghul who slits his neck. •
Wally Clarke (portrayed by
Will Janowitz) – A thief who steals dead pigs from a butcher's shop. One of the pigs' heads turns up at a crime scene. Bullock and Gordon then interrogate him about who hired him for the job. •
Grace Blomdhal (portrayed by
Samia Finnerty) – A classmate of Bruce Wayne at Anders Preparatory Academy. •
Headhunter (portrayed by Kyle Vincent Terry) – A friend of Victor Zsasz who became a replacement security counsel for Oswald Cobblepot while Victor Zsasz was out of town. Following a disastrous mission to apprehend Professor Pyg, Headhunter was stabbed twice by Cobblepot when he commented that Gordon was right about his claim on Professor Pyg. After getting out of the hospital, Headhunter accompanies Victor Zsasz into targeting Cobblepot and then Arthur Penn. •
Sampson (portrayed by Stu "Large" Riley) – A gangster operating in the Narrows. After having trashed her clinic, Lee slipped a poison in his drink and gave him the antidote in exchange that he leaves the Narrows. When Sofia Falcone gets tired of waiting for Lee to get a 30% from the Narrows for her, she allies with Sampson to overthrow Lee. After putting Sofia in a coma, Lee got her revenge on Sampson by having him beaten up before striking his hand with a hammer. •
The Dentist (portrayed by D. Baron Buddy Bolton) – A dental-themed torture specialist. •
Griffin Krank (portrayed by Thomas Lyons) – A toymaker in the Narrows and owner of a toy store called Krank Toys and Models who was hired by Edward Nygma's Riddler side to kill Lee Thompkins with his toy-like weapons. When Edward Nygma confronted Griffin about the attempt on Leslie's life and learned that his Riddler side went rogue, Griffin was shot by James Gordon. •
Cosmo Krank (portrayed by
Chris Perfetti) – The son of Griffin Krank who works in his father's toy store. •
Zachary Trumble (portrayed by
John Treacy Egan) – The brother of Lila Veleska and the uncle of Jerome and Jeremiah Valeska. He owned a diner in Gotham City. Following the escape of Jerome, Jonathan Crane, and Jervis Tetch, Jerome confronted Zachary about Jeremiah's last known address. Zachary told Jerome, and was killed by him. •
Palden (portrayed by Jamal James) – The leader of a renegade faction of the League of Shadows which remained loyal to Ra's al Ghul even after his death. He performs the ritual to use Bruce's blood to resurrect Ra's al Ghul, and informs him that Barbara is not a leader for the League. After Ra's is killed again, this time by Barbara, he and the remaining members of his faction agree to follow her, but she orders the Sisters of the League to kill them. His corpse is later used as part of a sign to deter men away from the Siren's turf. •
Holden Pritchard (portrayed by
Peter McRobbie) – The Interim Mayor of Gotham City who is in charge of Gotham City while Burke is away. •
Gertrude Haverstock (portrayed by
Alison Fraser) – An elite member of Gotham City who is among those captured by Jerome and his allies. •
Gloria Bainbridge (portrayed by Brenny Rabine) – An elite member of Gotham City who is among those captured by Jerome and his allies. She was used as a guinea pig for Jerome's gas. •
Jongleur (portrayed by Christian Alexander Rozakis) – A member of the Cult of Jerome that leads the siege on the Gotham City Police Department's main precinct to hold a funeral for Jerome. After being captured by Gordon and tasered by Bullock in to confessing who is behind this, Jongleur is taken from the police van by Oswald Cobblepot where Solomon Grundy tortures him into giving out Jeremiah Valeska's name as the new player in Gotham City's criminal underworld. During Oswald Cobblepot and Barbara Kean's demands with Jeremiah Valeska revolving around their cut in the crisis and an extended evacuation deadline, Jeremiah uses an RPG to kill Jongleur which also destroyed the core relay for the generators that he was attached to. •
Rodney Harlan (portrayed by
Malik Yoba) – An army major sent to oversee the evacuation of Gotham City in light of Jeremiah Valeska's bomb plot.
Introduced in season 5 •
Sykes (portrayed by Alex Morf) – The leader of the Soothsayers in Granton who used orphans to dig a tunnel under the river in order to reach the main land. After most of the Soothsayers and the rival gang were shot by Barbara Kean, Sykes was shot by Gordon before he can finish insulting Barbara. When the digging resumed, Sykes was killed by Jeremiah Valeska who took control of the operation. •
Mutant Leader (portrayed by Sid O'Connell) – The unnamed leader of the Mutants who inhabited the posh area of Gotham City that has been labeled the Dark Zone. After being beaten up by Selina Kyle, Bruce asked him where Jeremiah Valeska was sighted. The Mutant Leader states that Jeremiah was last seen at the Old Town Church. The Mutant Leader was later enlisted by Ivy Pepper to keep Selina busy while she makes off with a mind-controlled Bruce. Selina subdued the Mutant Leader and got the directions to the factory that is helping in decontaminating the river. •
Angel Vallelunga (portrayed by David Carranza) – Eduardo Dorrance's second-in-command of Delta Force. During the final battle against Gordon and his allies, Angel, Bane, and those involved are arrested by the army. •
Magpie (portrayed by Sarah Schenkkan) – A thief obsessed with shiny objects. She stole a diamond from Penguin causing him to cut a deal with Selina Kyle to track her down. After escaping her explosive room, Penguin found Magpie trapped in one of his traps and shoots her much to the objection of Selina. •
Thomas and Martha Wayne Imposters (portrayed by Grayson McCouch and Brette Taylor) – An unnamed husband and wife were captured by Jeremiah Valeska who had them hypnotized by Mad Hatter and undergone plastic surgery to look like Thomas and Martha Wayne due to them matching the bone traits of the originals. He used them in his plot to re-enact the night when Thomas and Martha Wayne were murdered. Both look-a-likes were later killed offscreen by Jeremiah after serving their purpose and replaced with a hypnotized James Gordon and Lee Thompkins. •
Jane Cartwright / Jane Doe (portrayed by Sarah Pidgeon) – A woman and former Arkham Asylum patient who gained her shapeshifting powers when she was experimented on by Hugo Strange at the Indian Hill facility. She sought revenge against the police officers that put away her mother Veronica away after she shot her abused husband. After killing Boggs, Lewis, and Dix while also escaping from the Gotham City Police Department disguised as Barbara Kean, her final target Harvey Bullock confronted Jane at her house where she says that one of them will leave this room alive. This force Harvey to put Jane out of her misery. •
General Wade (portrayed by
John Bedford Lloyd) – A general sent to oversee the runification of Gotham City. He alongside Jim Gordon and Bruce Wayne were captured by Bane and Delta Force. After Gordon broke out of his trap before Hugo Strange could do the same experiments he did on Bane to him, he freed General Wade and checked to see if Strange put a control chip in him. Though Strange did some experiment on General Wade so that he can issue Special Order 386. After Nyssa was stabbed by Barbara during Nyssa's fight with Gordon, Nyssa tells General Wade to initiate the failsafe which results in General Wade committing suicide. •
Chang (portrayed by
Ann Harada) – A woman who becomes the new Mayor of Gotham City following Bane and Nyssa's defeat. •
Barbara Lee Gordon (portrayed by Jeté Laurence) – The daughter of Jim Gordon and Barbara Kean who was born when Gotham City was a no man's land. Ten years later, she is now grown up and living with her father while being able to visit her mother. ==Notes==