Dr. Jeremiah Surd is one of the main antagonists in The Real Adventures of Jonny Quest, Cartoon Network's 1990s reimagining of Hanna-Barbera's 1960s Jonny Quest series.

His main goal is to take revenge against Race Bannon for the incident that left him disabled. He also wants to completely take over Questworld, use it for criminal purposes and become the undisputed controller of cyberspace.

Basic DataEdit

In-Universe Information 200px-Vlcsnap-88505
Full name: Dr. Jeremiah Surd
Spouse: None. In a relationship with Julia
Known relatives: None
Physical features: Dark hair, clear eyes (past); wrinkled, white hair, clear eyes, messy hair, mustache (season one); wrinkled, white hair, dark eyes (season two)
Typical attire: He's permanently in an electronic wheelchair
Production Information
First appearance: Episonde 2, "Escape to Questworld"
Last appearance: Episode 44, "Thoughtscape"
Voiced by: Frank Welker

In-depth character backgroundEdit

Surd 1978

Surd before the incident

Dr. Jeremiah Surd, was a brilliant scientist working for the United States government, until a certain congressman (whom he later tries to kill) cut off his funding for his nerve gas, so he decided to use it for his own personal gain with his lackeys Julia and Lorenzo and hold the city of Chicago for ransom in 1978.

Race Bannon tracked him down to his hideout on a deserted ship and attempted to arrest him, but Surd believed that Bannon could never shoot an unarmed man and the two men were about to discuss a deal when a member of the S.W.A.T. team that had come with Bannon shot Surd in the leg and neck. Bannon tried to stop him, but Surd's injuries were severe, and he fell to the ground. Surd was furious and blamed Bannon for setting him up.

Though not dead, Surd was still paralyzed from the shooting and had to spend the rest of his life in a wheelchair, he was sent to the Belle Isle Institute of the Insane in 1979.

Many years later he was found by Jonny Quest, Hadji Singh and Jessie Bannon (Race's daughter) who needed Surd's help because his nerve gas had been found and now Dr. Quest (Johnny's father) and Bannon (now their bodyguard) were trying to deactivate it without much success, and he was the only one who knew how.

Surd in Questworld

Surd in Questworld

They made a deal with him by showing him the virtual reality of Questworld in exchange for helping Dr. Quest and Bannon with his nerve gas.

Surd agreed, and he was amazed that he was given a new younger virtual body and was able to move again. The Quest team then took him to their lighthouse that had even more advanced Questworld equipment. As Surd was logged into Questworld again, he started changing the program and creating a darker advanced body for himself as well as hacking into a phone line to contact Julia and Lorenzo. His lackeys arrived and stole the portable Questworld equipment. Even though eventually the gas was able to be stopped, Surd was still at large. He was placed in a large robotic chair for support and that could also help him control other things in Questworld and use it for his own evil purposes.

His many schemes have included attempting to destroy the Quest Compound (Assault on Questworld), using Alice Starseer's mind to gain access to an alien homeworld to use their technology in Questworld (Trouble on the Colarado), controlling rare Creaceon sea creatures into making savage attacks (Besieged in Paradise), turning Race Bannon and Dr. Quest into apes (The Secret of Moai), switching bodies with Race Bannon (Cyberswitch) and kill Jonny and Jessie in a Questworld video game (Digital Doublecross).

He has been taken to jail, but has found a way to escape. His final evil scheme was creating a plan to brainwash Jessie. He intercepts her after she exits a movie in a nearby town in Maine. The villain brainwashes her successfully, and she returns home and causes serious damage at the Quest Compound with the Queststream. Fearing for her health, Jonny and Dr. Quest enter her mind, while Lorenzo arrives in reality and holds Race and Hadji at gunpoint. Surd then initiates phase two: custom, torturous illusions are given to Dr. Quest and Johnny, inflicting significant emotional damage. Hadji and Race fight Lorenzo and his men and help Jonny and Dr. Quest in Questworld.

Surd trapped in Questworld

Surd trapped in Questworld

However, Surd uses a cheat to grow to huge heights in combat with them. Suddenly, a huge Jessie grabs Surd and prevents him from doing more damage; her subconscious mind is beginning to clear out the foreign information introduced through brainwashing. Jonny and Dr. Quest escape, but Jessie sends Surd to Questworld and strips him of his mobility, trapping him there forever as Surd's real world body stays catatonic. Julia, Lorenzo, and the catatonic Surd are then hauled off to jail once again. Thus ending the Surd threat once and for all.


Season 1Edit

  • Episode 2: Escape to Questworld
  • Episode 8: Assault on Questworld
  • Episode 13: Trouble on the Colorado
  • Episode 16: Besieged in Paradise
  • Episode 18: Heroes
  • Episode 21: The Secret of Moai
  • Episode 26: To Bardo and Back

Season 2Edit

  • Episode 32: Cyberswitch
  • Episode 39: Without a Trace
  • Episode 43: Digital Doublecross
  • Episode 44: Thoughtscape


Surd is ruthless, cruel and extremely dangerous with a burning hatred for the Quests, the Bannons and Hadji. Although paralyzed in the real world, he is a great danger in the virtual world of Questworld using it for his own evil purposes.


Include creator's details about how the character of Jeremiah Surd was initially conceptualized.


  • Though his character design was changed for Season 2, his voice actor Frank Welker (who also voiced Bandit) was retained.
  • Surd is thought to be inspired by Stephen Hawking
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