Sheriff Bronson Stone Sheriff Bronson Stone (voiced by
Patrick Warburton) is the sheriff of Crystal Cove, first appearing in the pilot episode, "
Beware the Beast from Below". He is often antagonistic to Mystery Inc., as he believes the monsters are an important revenue stream for the town. During the first season, Sheriff Stone was loyal to Mayor Fred Jones Sr. until he was unmasked as the season one finale. In season two, Sheriff Stone goes to work for Mayor Janet Nettles. Though not comfortable at first, Sheriff Stone starts to warm up to Mayor Nettles and beginning a romantic relationship with her. In the rebooted timeline depicted in the series finale "
Come Undone", he and Mayor Nettles are married and have four children: Eastwood, Norris, Billy Jack, and Lynda Carter.
Hot Dog Water (Marcie Fleach) Marcie Fleach (voiced by
Linda Cardellini), also known as
Hot Dog Water, is a resident of Crystal Cove and Velma's rival. She first appears in "
Where Walks Aphrodite", and dresses up as a
Manticore in the season one episode "
Menace of the Manticore". In season two, Marcy was released from prison after she helped to improve its security. She joins Mystery Incorporated as Daphne's replacement (and as a mole for Mr E), only to leave in "
Web of the Dreamweaver" following Daphne's return. In "
Night on the Haunted Mountain", still working for E, she dressed up as "Dark Lilith" in a bit to trick the mystery gang into finding one of the disk Pieces but defects from Mr E at the end of the episode giving the piece to Velma instead. In the finale, she is used as bait by Pericles but breaks free, holding him hostage. However, she is taken down and killed off-screen. In the rebooted timeline depicted in the series finale "Come Undone", Marcie is Velma's friend.
Mayor Fred Jones Sr. Mayor Fred Jones Sr. (voiced by
Gary Cole) is the mayor of Crystal Cove and Fred's adoptive father, first appearing in the pilot. He is proud of Crystal Cove being named the "Most Haunted Place on Earth" and uses it to attract tourism while annoyed that his son and the rest of Mystery Inc. keep unmasking the fake monsters. In the
season one finale, it is revealed that he was the Freak of Crystal Cove, that he kidnapped Fred when he was a baby in order to prevent Brad and Judy from returning and that he was behind the disappearance of the original Mystery Incorporated. He was subsequently sent to jail. Mayor Fred Jones Sr.'s arrest led to Janet Nettles becoming the new Mayor of Crystal Cove. In season two, Fred Jones Sr. was seen in prison as Mystery Inc. left some items in his care to keep the items out of Professor Pericles' clutches. In the rebooted timeline depicted in the series finale "Come Undone", Fred Jones Sr. is the principal and soccer coach of Crystal Cove High School.
Mayor Janet Nettles Janet Nettles (voiced by
Kate Higgins) is a woman who succeeds Fred Jones Sr. as mayor of Crystal Cove after he is exposed as the Freak of Crystal Cove and arrested. First appearing in "The Night the Clown Cried", she often enlists the help of Mystery Incorporated and begins a romantic relationship with Sheriff Stone. She also has connections to the military. In the rebooted timeline depicted in the series finale "Come Undone", she and Sheriff Stone are married and have four children: Eastwood, Norris, Billy Jack, and Lynda Carter.
Ed Machine Ed Machine (voiced by
Richard McGonagle) is the CEO of Destroido Corp and Mr. E's henchman. In the season one finale, Machine helps to save Mystery Inc. Professor Pericles later attacks him to "send a message" leaving it unknown if he was killed or not.
The Original "Mystery Incorporated" A group of teenage crime solvers that succeeded the modern group and acted as their namesake.
Mr. E (Ricky Owens) Mr. E (voiced primarily by
Lewis Black as an adult,
Jeff Bennett as a young adult) is a mysterious figure who gives clues to the gang throughout the first season. He is later revealed to be
Ricky Owens, a member of the original Mystery Incorporated and an ally of Professor Pericles. During the second season, Mr. E started to doubt Professor Pericles' work causing Professor Pericles to secretly place remote-activated cobra larva in his spine to ensure his loyalty. In the rebooted timeline depicted in the series finale "Come Undone", Owens is married to Cassidy Williams, and the two work together with Pericles at an
environmentally-friendly version of Destroido called Creationex.
Angel Dynamite (Cassidy Williams) Cassidy Williams (voiced by
Vivica A. Fox and her younger self is voiced by
Kimberly Brooks) alias
Angel Dynamite, is an ally of Mr. E and a member of the original Mystery Incorporated. She first appears in "Beware the Beast from Below" as a radio DJ for the K-Ghoul radio station. Her true identity is revealed to Velma and later the rest of the gang, causing them to distrust her. She sacrifices her life to save the gang from an explosion in "
The Midnight Zone" episode. In the rebooted timeline depicted in the series finale "Come Undone", Cassidy is married to Ricky Owens, and the two work together with Pericles at an
environmentally-friendly version of Destroido called Creationex.
Professor Pericles Professor Pericles (voiced by
Udo Kier) is a sentient parrot and the mascot of the original Mystery Incorporated, first appearing in "
Howl of the Fright Hound". Throughout the series, he attempts to summon the Evil Entity, only to be killed by him. In the rebooted timeline depicted in the series finale "Come Undone", Pericles is the benevolent mascot for Ricky and Cassidy's company, Creationex.
Brad Chiles and Judy Reeves Bradley "Brad" Chiles and
Judy Reeves (voiced by
Tim Matheson and
Tia Carrere as adults,
Nolan North and
Kari Wahlgren as young adults) are members of the original Mystery Incorporated and the birth parents of Fred Jr. When Fred Jones Sr. abducts Fred to keep Brad and Judy from returning to Crystal Cove, the two continue to live their lives under secret identities as the Sternums, a couple who invent traps and help mystery solvers. In the rebooted timeline depicted in the series finale "Come Undone", the two are
obstetricians who were never separated from Fred.
Nova Nova (vocal effects provided by
Jennifer Hale, speaking voiced provided by
Amy Acker) is Brad and Judy's pet
Cocker Spaniel that Scooby-Doo is infatuated with. She is placed in a coma in "
The Horrible Herd", later being possessed by the
Anunnaki, who warn Mystery Inc. of the Evil Entity.
The Evil Entity The
Evil Entity (voiced by
Clancy Brown) is an evil
Anunnaki who was imprisoned in a crystal sarcophagus buried beneath Crystal Cove by his own kind. He came to Earth thousands of years ago during
Nibiru, which weakened the barriers between dimensions and allowed him to cross over. Unlike the rest of his kind, who seek to help mankind evolve, he desires for destruction. His influence causes most of the series' events. Professor Pericles eventually frees the Entity before Mystery Inc. destroys him, creating a new timeline free of his influence. ==Introduced in
Scoob!==