Hospital staff Dr. Jack Abbot Dr. Jack Abbot (
Shawn Hatosy) is a night shift attending physician at The Pitt. An old friend and confidant of Robby, Abbot is a former military doctor who served and was wounded overseas, as well as a widower. He also volunteers with the Pittsburgh Police as a
SWAT Physician. Like Robby, Abbot often resorts to reckless and improvisational tactics to save patients, but is shown to be shrewd, highly competent, and charismatic, and credits therapy with helping him cope with the trauma of his past and his work as a physician. Abbot is first seen standing at the edge of the roof at end of his shift, feeling despondent over the death of a patient who served in the military; Robby convinces him to return downstairs. Abbot later arrives early alongside several other night shift staff to help Robby and the day shift treat victims of a mass shooting at Pitt Fest, having received news of the incident via
police scanner. Abbot's experience practicing combat-zone medicine proves invaluable during the mass casualty, with Abbot himself having brought several tools (such as portable
ultrasound and
cricothyrotomy kits) that expedite the staff's work when their resources are quickly depleted. At the end of the shift, Abbot finds Robby standing on the edge of the roof, reeling from the death of Leah, the girlfriend of his de facto stepson Jake, and feeling like a failure for having a panic attack during the shift; Abbot assures Robby that he performed excellently, and stresses the importance of their work, convincing Robby to leave with him. The two share beers in the park across from the hospital with other staff; Abbot is revealed to be an
amputee, having lost his leg while serving in the military. Abbot returns in season 2 midway through the day shift with an officer who was wounded during a SWAT raid, and helps Robby and his staff save him. Mohan helps Abbot bandage a minor wound he suffered during the raid, and tells Abbot about her patient, Orlando Diaz, who left the hospital against medical advice due to mounting medical debts; Abbot offers to personally pay for medical supplies to be delivered to Orlando's home via
Uber. Abbot also assists in treating
obese patient Howard Knox, and accompanies him to a neighboring hospital for scans before going home to rest prior to the night shift. Abbot returns for the night shift to serve as attending alongside Shen. He and Robby work together to save pregnant mother Judith Lastrade and her newborn after she suffers
pre-eclampsia while attempting a
freebirth. Afterwards, Abbot has an emotional conversation with Robby, who has become suicidal due to years of ignoring his mental health struggles while allowing the constant death he witnesses on the job to take a toll on him. Abbot stresses the importance of therapy, telling Robby that it helped him come to terms with the loss of his leg and later his wife, and recommends that Robby take a safer trip than riding a motorcycle helmetless.
Perlah Alawi Perlah Alawi (Amielynn Abellera) is a nurse working in the ER. She is close with fellow nurse Princess Dela Cruz who, like her, is of
Filipino ancestry, and the two are often heard gossiping with each other in
Tagalog about the goings-on at the hospital. In season 2, Perlah is deeply shaken by the death of regular patient Louie Cloverfield, prompting Dana to take over for her in preparing Louie's body for viewing. She and Dana later share a tender embrace while watching the Fourth of July fireworks from the hospital's roof.
Mateo Diaz Mateo Diaz (
Jalen Thomas Brooks) is a nurse working in the ER. Javadi is instantly attracted to him upon meeting him and asks him out on a date that day, but he gently declines, telling her he does not date coworkers. He comes to admire Javadi over the course of their first shift together, especially when she improvises treatment plans under pressure during a mass casualty incident when the hospital is short on supplies. He brings Javadi along to have beers with the staff after the shift ends. Mateo returns in season 2 as part of the night shift staff on July 4.
Donnie Donahue Donnie Donahue (Brandon Mendez Homer) is a nurse, and later
nurse practitioner, working in the ER. In season 2, he is father to a newborn baby, and his experience as a parent helps him care for a baby found abandoned in the ER restroom.
Princess Dela Cruz Princess Dela Cruz (
Kristin Villanueva) is a nurse working in the ER. She is close with Perlah, the two often gossiping with each other in
Tagalog.
Dr. Eileen Shamsi Dr. Eileen Shamsi (Deepti Gupta) is a senior attending surgeon and Victoria Javadi's overbearing mother. She puts pressure on Javadi to pursue surgery over emergency medicine, but Javadi proves her capabilities while treating victims of the Pitt Fest mass shooting, and stands up to her mother's condescension when Shamsi scorns the improvised tactics the doctors are forced to adopt in the absence of resources. Shamsi and Javadi remain distant in season 2, with Shamsi unsuccessfully trying to persuade Robby to allow Javadi to pursue a career outside the ER. Shamsi performs an emergency surgery with her daughter's assistance on patient Austin Green after his
abdominal aortic aneurysm ruptures.
Gloria Underwood Gloria Underwood (
Michael Hyatt) is the chief medical officer of the Pitt. She frequently clashes with Robby, who criticizes her for prioritizing bureaucratic concerns such as
patient satisfaction scores over quality of care, and urges her to address the hospital's perennial staff shortages. Gloria proves dependable during a mass casualty event following a shooting at Pitt Fest, providing Robby with all the resources he asks for. However, she later admonishes him again upon learning that staff donated their own blood, and that Robby let a potential suspect in the shooting go free earlier in the day despite concerns; Robby finally snaps and loudly berates Gloria in front of the whole staff. At the end of the shift, Gloria commends the Pitt's staff for their heroism in responding to the mass casualty.
Kiara Alfaro Kiara Alfaro (Krystel V. McNeil) is the department
social worker in season 1.
Dr. Yolanda Garcia Dr. Yolanda Garcia (
Alexandra Metz) is a resident surgeon at the Pitt, and is the ER's primary point of contact to the OR. Talented and respected but cocky and often abrasive, Garcia frequently banters with Langdon and subtly flirts with Santos throughout the latter's first shift, though tension briefly arises from Santos accidentally dropping a scalpel on Garcia's foot. In season 2, Garcia and Santos are now having casual sex; Santos wants a more serious relationship, but Garcia does not reciprocate her feelings. Garcia reprimands Santos for her dismissive attitude towards Langdon while treating a patient; Santos later privately confides to Garcia her resentment over being treated like a pariah for reporting Langdon for stealing drugs from the hospital, but Garcia counters that Santos is being ostracized because of her general hostility towards others.
Lupe Perez Lupe Perez (
Tracy Vilar) is the hospital's day-shift
ward clerk. During the Pitt Fest shooting, Lupe and social worker Kiara Alfaro set up an area in the hospital for victims' families to identify them based on patient photos. In season 2, Lupe sees several of her fellow Hispanic coworkers fleeing the hospital after
ICE agents arrive with an injured detainee.
Dr. John Shen Dr. John Shen (
Ken Kirby) is a night shift senior attending physician. Unlike his more intense counterparts Robby and Abbot, Shen has a casual and laidback demeanor, known for bringing an
iced coffee with him to work, and is shown to perform competently under pressure. He and the rest of the night shift assist the day shift in treating victims of the Pitt Fest shooting. In season 2, Shen is the sole attending overseeing the shift the night before July 4, and hands off their patients to Robby. He returns later that night alongside Abbot and oversees several cases, including an asthmatic teenager suffering a
pneumothorax, and a pregnant mother suffering
pre-eclampsia while attempting a
freebirth.
Dr. Emery Walsh Dr. Emery Walsh (Tedra Millan) is a night shift surgeon, who arrives early to help the day shift treat victims of the Pitt Fest shooting. Like Garcia, she has an abrasive and sarcastic personality, and clashes with Abbot over his improvised tactics to treat victims of the shooting.
Lena Handzo Lena Handzo (
Lesley Boone) is the night-shift charge nurse who also works as a
death doula. She assumes the latter role for the family of Roxie Hamler, a woman with advanced lung cancer who arrives at the ER on July 4, and helps Roxie's husband and children come to terms with her impending death.
Joy Kwon Joy Kwon (Irene Choi) is a third-year medical student who trains under Whitaker alongside Ogilvie. Joy behaves aloof during the early hours of the July 4 shift, her disinterest often a product of being overshadowed by the arrogant Ogilvie. She later devises a plan for uninsured patient Orlando Diaz to be treated at a far lower cost, and opens up to Mohan about the death of her grandmother and her subsequent discomfort with emergency medicine. When the hospital's computer systems are shut down amid a cyberattack, Joy uses her
photographic memory to help staff reconstruct the patient chart on a whiteboard. Joy leaves at the end of her shift despite Langdon admonishing her to stay overtime to help, stressing to him the importance of boundaries given the high rate of burnout amid ER doctors.
Emma Nolan Emma Nolan (
Laëtitia Hollard) is a recent nursing school graduate working in the ER, whom Dana mentors. Despite her initial shyness and anxiety around working in an ER environment, Emma is shown to be a skilled and empathetic nurse, particularly when caring for a homeless patient, Digby, and helping Dana collect a
rape kit from a
sexual assault victim. At the start of Emma's shift, Dana warns her about the high rates of assault of nurses by patients and informs her of the hospital's code word, "hula hoop", for such emergencies; Emma is indeed assaulted later in her shift when Curtis Larson, a golfer who became belligerent after
combining alcohol with cocaine, awakes from sedation in a disoriented state and puts Emma in a chokehold while she is checking his vitals. Dana saves Emma by subduing Larson with
Versed; Emma insists on staying to complete her shift, telling Dana she is not a quitter.
James Ogilvie James Ogilvie (Lucas Iverson) is a well-read but arrogant fourth-year medical student who trains under Whitaker alongside Joy. He has a strained relationship with his father, an English teacher who disapproves of his career in medicine. Ogilvie's pompousness and insensitivity towards patients frequently irk the other staff, including his fellow medical student Joy, who feels overshadowed by him, and McKay, who chastises him for making judgmental comments about an obese patient's weight and later a homeless woman's drug addiction. Ogilvie nearly kills a patient by removing an embedded shard of glass in his body, causing severe bleeding; Robby instructs him never to remove foreign bodies on his own. Ogilvie later bonds with patient Austin Green, who, like Ogilvie's father, is an English teacher; however, Green suffers a rupture of an
abdominal aortic aneurysm that Ogilvie and Mohan failed to detect. Ogilvie accompanies Green to surgery, where he ultimately dies. Whitaker finds Ogilvie emotionally devastated in the ambulance bay, and comforts him by telling him about the death of his patient on his own first day. Ogilvie doubts whether he can handle the emergency department and contemplates a move to primary or pediatric care, but Whitaker tells him to go home and rest before making any major career decisions.
Noelle Hastings Noelle Hastings (
Meta Golding) is a nurse and
case manager in the ER who is casually dating Robby. She, Mohan, and Joy work together to devise a coverage plan for Orlando Diaz, an uninsured patient, that significantly reduces his out-of-pocket costs. She later bids farewell to Robby for his sabbatical.
Dr. Caleb Jefferson Dr. Caleb Jefferson (
Christopher Thornton) is a
psychiatrist. Robby repeatedly blows off Caleb's attempts to speak with him during his last shift before a planned sabbatical, and Caleb unsuccessfully recommends to Robby that he retry therapy. Caleb also diagnoses Jackson Davis, a patient brought in after an outburst at his college library, with possible
schizophrenia and manage his symptoms with
droperidol. At the end of his shift, Caleb chastises Robby for openly speculating that patient Orlando Diaz attempted suicide, and offers Robby his phone number in case he wants to talk while on his sabbatical.
Monica Peters Monica Peters (
Rusty Schwimmer) is a retired hospital clerk who Dana calls to help manage paperwork during a system shutdown. Though longtime friends with Dana, Monica is gruff and rude to much of the other staff, such as Javadi, and is shown to harbor racist and antiquated attitudes. She eventually leaves about an hour after the hospital systems are restored.
Patients and relatives Theresa Saunders Theresa Saunders (
Joanna Going) is a patient who makes herself sick to come to the ER to report concerns about her son David's behavior.
David Saunders David Saunders (Jackson Kelly) is Theresa's troubled teenage son, and later, an ER patient.
Doug Driscoll Doug Driscoll (
Drew Powell) is a belligerent patient who has been in the ER waiting room for hours. He clashes with several staff members over having to wait for treatment, despite being reminded that patients are seen based on severity and not order of arrival. Driscoll is initially examined but sent back to the waiting room to await test results. He eventually causes a scene and nearly storms out after having an outburst at Dana and Javadi, but Langdon informs him that he would be leaving
against medical advice (AMA) and hands him a form to sign to clear the hospital of liability. Shortly afterwards, Doug punches Dana in the face in the ambulance bay while she is taking a break, and throws the signed AMA form at her. Police later arrest Doug, and staff encourage Dana to press charges. Dana is left deeply traumatized by the assault and nearly quits working at the Pitt because of it.
Minu Minu (Arun Storrs) is a
Nepali woman who was pushed onto the subway train tracks and suffered a severe
degloving injury to her foot.
John Bradley John Bradley (
Brandon Keener) is the father of Nick Bradley, a teenager declared braindead after a
Xanax overdose. He gets into a confrontation with another patient, Jenna, who was studying with Nick the night he overdosed; she later apologizes. Staff perform an
honor walk for Nick, who consented to being an organ donor upon his death, and Robby tells John that the staff would like to attend Nick's funeral; John tearfully accepts.
Joyce St. Claire Joyce St. Claire (
Ashley Romans) is a woman with
sickle cell disease. Paramedics misidentify her as an addict seeking drugs and put her in restraints, but Mohan orders her freed and accurately diagnoses her symptoms, administering drugs to treat her pain and putting her on an antibiotics regime to manage her potential
pneumonia. Joyce's wife Ondine arrives to watch over her. Mohan later attributes her intuition regarding Joyce's symptoms to her work studying
racial disparities in healthcare, with Joyce, a black woman, more likely to have her symptoms misdiagnosed.
Lily Bradley Lily Bradley (
Samantha Sloyan) is Nick Bradley's mother. She is devastated upon hearing that her son has been declared braindead from an overdose; Robby orders unnecessary tests to give Nick's parents time to come to terms with his passing. Lily expresses profound gratitude to Robby and the staff for treating Nick and helping she and her husband John through their grief.
Jenna Jenna (
Mika Abdalla) is a college student who overdosed along with Nick Bradley; the two were studying for an exam and took Xanax to fall asleep after having had too much coffee that night. Jenna gets into a verbal confrontation with Nick's father John after he blames her for his son's death, but later apologizes.
Kristi Wheeler Kristi Wheeler (
Abby Ryder Fortson) is a pregnant teenager with an appointment for a medical abortion.
Lynette Wheeler Lynette Wheeler (
Marguerite Moreau) is Kristi's aunt.
Ginger Kitajima Ginger Kitajima (Shu Lan Tuan) is an elderly
schizophrenic woman who is injured in a fall in her garden.
Chad Ashcroft Chad Ashcroft (
Robert Heaps) is McKay's ex and father to their son Harrison. He and McKay have a strained relationship in part due to Chad's irresponsibility as a father, as well as tension between McKay and Chad's new girlfriend, who filed a restraining order against McKay for assaulting her.
Troy Digby Troy Digby (
Charles Baker) is a homeless man who comes to the ER seeking to remove a cast from his arm. After other patients in the waiting room complain about his foul odor, Digby is admitted as a patient and given a shower by Dana and Emma. Mohan subsequently cuts open Digby's arm cast to reveal
maggots living underneath, his wound having become infected. Staff treat his infection, and Dana and Emma later give Digby a shave and a haircut, leaving him emotional both with gratitude for the nurses and distress that his family will not recognize him. Digby reveals that he has an adult daughter who lives in his former home; Emma, who learns that Digby danced with his daughter at her wedding, assures him that his daughter will always remember him.
Harlow Graham Harlow Graham (Jessica "Limer" Flores) is a deaf patient suffering from neck pain. After Harlow's interpreter is called away on an emergency, hospital staff struggle to communicate with her while awaiting a new interpreter; a
VRI is used until a system shutdown renders it non-functional, and Santos unsuccessfully tries to use a pen and paper as an alternative. A new in-person interpreter eventually arrives; Santos learns that Harlow's neck pain comes from poor posture while working on her laptop, and administers a local anesthetic. Santos later expresses guilt for the amount of time it took to treat Harlow for what was ultimately a simple diagnosis.
Louie Cloverfield Louie Cloverfield (Ernest Harden Jr.) is a patient who frequents the ER and has severe
alcoholism.
Jackson Davis Jackson Davis (
Zack Morris) is a patient brought to the ER in a psychotic state after having an outburst at his college library while studying for the
bar exam. Jackson was illegally tased in the neck by security guard Tony Chinchiolo; Mel and Robby remove the taser barbs. Jackson's symptoms are treated with
droperidol by psychiatrist Caleb Jefferson, and his sister Jada arrives, distressed over his condition and shocked to learn of his outburst. Upon awakening, Jackson tells Caleb of voices he was hearing. Jackson's parents later arrive; the family is informed that Jackson may be suffering from
schizophrenia. Javadi introduces Jackson's family to Nicole Steadman, a parent-support advocate, who helps them come to terms with their son's mental-health issues; Jackson's father eventually admits that the death of his brother (Jackson's uncle) was a suicide, suggesting a family history of mental illness.
Roxie Hamler Roxie Hamler (
Brittany Allen) is a patient with advanced lung cancer.
Paul Hamler Paul Hamler (
Taylor Handley) is Roxie's husband.
Becca King Becca King (
Tal Anderson) is Mel's
autistic sister. She lives in an
assisted-living facility, with Mel frequently visiting her to make sure she is taken care of; one of their favorite activities is watching the film
Elf, which Becca has watched over a hundred times. In season 2, Becca comes to the ER reporting abdominal pain; Langdon examines her and learns she has a
urinary tract infection, which Becca admits to Mel is likely a result of having sex with her boyfriend Adam, who Becca met in assisted living and whom Mel was unaware of. Mel is shocked by the news and angrily pressures Becca to divulge more details of the relationship, making Becca cry; Mel later apologizes and learns from Becca that her relationship with Adam is consensual and self-directed, making Mel resent her sister's happiness amidst her own loneliness. While leaving, Becca declines to watch the July 4 fireworks with Mel as they usually do, and instead spends the night at Adam's family's house.
Duke Duke (
Jeff Kober) is a motorcycle engineer and old friend of Robby. After Duke complains about hoarseness in his throat, Robby has him come in for a check-up on his last shift before a sabbatical he plans to spend riding his motorcycle cross-country. Duke's X-ray detects an enlarged
mediastinum; Robby delays leaving for trip until
CT scan results arrive. Duke notices Robby behaving erratically and infers that he feels a compulsion to stay in the ER despite the toll it takes on him and his desire to escape. The CT scan reveals that Duke has an
ascending aortic aneurysm that will require surgery and months of aftercare, with a 50% chance of death otherwise. Duke helps fix Robby's motorcycle after an ambulance accidentally knocks it over, and has an honest conversation with him afterwards, where Robby finally admits that he is suicidal and that his sabbatical is an attempt to escape his anguish. Duke asks Robby whether running away is the legacy he wants to leave for his students. He and Robby shake hands before he departs, with Duke making Robby promise to return from his trip. == Other characters ==