Main •
Norville "Shaggy" Rogers (voiced by
Scott Menville): Shaggy is no longer a
vegetarian in the series. •
Scooby-Doo (voiced by
Frank Welker): Shaggy's pet and best friend. He usually saves the day by consuming a nano-infused Scooby Snack which gives him an incredible power of some such. • Robi (voiced by
Jim Meskimen): A loyal robotic servant of Shaggy and Scooby-Doo. He is either defective or a failed experimental butler, but either way he has a tendency to bust through walls and other highly destructive things without second thoughts. Robi would also have different uses for Shaggy and Scooby, though he is a rather lousy cook, various impressions, and giving out safety tips (in a style similar to
Inspector Gadget). He also projects holograms of Uncle Albert when he wants to talk with Shaggy. Robi also usually calls Scooby "Rooby Roo" due to misunderstanding Scooby's voice. • Sparky (vocal effects provided by
Scott Menville): Robin's robotic dog. • Dr. Albert Shaggleford (voiced by
Casey Kasem): Shaggy's rich uncle who is a genius inventor, and was previously voiced by Brandon McCarter. He always sends a transmission to Shaggy from an undisclosed location on Phibes' doings. As of the final episode, it is revealed that he was undercover as Dr. Trebla all along ("Trebla" is "Albert" spelled backwards) and transmitting from Phibes' lair. It is also revealed that he is allergic to peanuts as seen when he was the only one of Phibes' minions to not take a peanut butter sandwich.
Villains • Dr. Phineus Phibes (voiced by
Jeff Bennett): A
mad scientist and the primary
antagonist of the series. In his younger age, Phibes conducted a highly dangerous experiment with electricity, which cost him his left hand (he wears a
prosthetic that seems to function as a high-tech
Swiss Army knife) and makes him a living
lightning rod—hence, he seldom ventures outdoors, as doing so makes him susceptible to being struck by lightning, regardless of the weather. Producer
Eric Radomski had this to say about Dr. Phibes: "Dr. Phibes' exterior lair is deco influenced, and in the 13th episode, we introduce a feline friend of Dr. Phibes. Ray DeLaurentis would need to confirm, but I believe your assumption is correct. Dr. Phibes is
Col. Klink plus
Dr. Evil divided by
Strangelove." • Dr. Trebla (voiced by Scott Menville): Dr. Trebla is Dr. Phibes' right-hand man who gives him advice and sees to his needs like his constant companion. In the series finale, he is revealed to have been Uncle Albert working undercover all along revealing how he could give info on Phibes regularly to Shaggy and Scooby. A clue before this revelation is that his name is in fact Albert spelled backwards. • The Agents: Dr. Phibes' minions. By the end of the series, they were all rescued from the collapsing lair by Scooby-Doo and arrested by the authorities while Phibes got away. • Agent 1 (voiced by Jim Meskimen): Agent 1 is serious and hates Shaggy and Scooby. He often works with Agent 2, much to his chagrin, and the second in command. Agent 1 is also the one never to believe what his agents ever tell him, until he sees proof, as seen in "Zoinksman". He is often told to smack Agent 2 when he annoys Dr. Phibes. He is the only one who is more easily annoyed by Agent 2 than Phibes is. • Agent 2 (voiced by Jeff Bennett): Agent 2 is a somewhat dimwitted and heavyset man who resents his name and wishes to be called something else. Among other personas he's adopted was a ninja in "High Society Scooby" and a racer called Dr. Speed. In one episode, his real name is revealed to be Jeff, a reference on his voice actor's name, however in an earlier episode, he is called Zachary. • Agent 3 (voiced by Frank Welker): Agent 3 is a timid, but honest agent. • Agent 4 (voiced by Scott Menville): Agent 4 is a strong agent who has a dark complection. • Agent 5 (voiced by Jim Meskimen): Agent 5 is an agent that is not very bright. • Agent 6: A background agent. In "More Fondue for Scooby-Doo", he was revealed to have a crush on girl named Betty and depleted the energy from Phibes' laser to deface a mountain. • Agent 7: A background agent. In "Shaggy and Scooby World", he was subjected to a nano-technology that turned him into a frog. As a later temporary side effect, he still ate flies and had a prehensile tongue. • Agent 8 (voiced by Scott Menville): An Agent. In "Chefs of Steel", he was a test subject for Chef Suki Sukihara's hypnotic hibachi. In "Shaggy and Scooby World", he was subjected to a nano-technology that turned him into a fly. • Agent 12 (voiced by Frank Welker): Agent 12 is a tall and obese agent. • Agent 13 (voiced by Frank Welker): Agent 13 is Dr. Phibes' elderly father. In "Don't Feed the Animals", he ate some special leaves that were part of a longevity experiment. • Ricky and Mark (voiced by Jeff Bennett and Jim Meskimen): Dr. Phibes' "techies" who work as his
hackers and
engineers. They are parodies of
Napoleon Dynamite and his brother Kip Dynamite. They work for Phibes and make evil inventions for his own use. Even though they work for Phibes, they will help Shaggy and Scooby if they need it. • Menace (voiced by Frank Welker): A super-strong villain who is Dr. Phibes' latest minion. After trying the nanotech formula, his strength was increased. After a while, Menace began to lose his mind. He developed a fondness for kittens (unfortunately for Phibes, who at the time had used some stolen nanotech to turn himself into a cat) and had smiley faces on his biceps. An obvious parody of
Bane.
Supporting •
Fred Jones (voiced by Frank Welker): Daphne's boyfriend and a member of Mystery Incorporated. Made an appearance in "Shags to Riches" and "Almost Ghosts". •
Daphne Blake (voiced by
Grey DeLisle): Fred's girlfriend and a member of Mystery Incorporated. Made an appearance in "Shags to Riches" and "Almost Ghosts". •
Velma Dinkley (voiced by
Mindy Cohn): A member of Mystery Incorporated. Made an appearance in "Shags to Riches" and "Almost Ghosts". ==Episodes==