Don Karnage and eventually used to power the lightning gun in the pilot episode "Plunder & Lightning".
Like any scientist, he wears glasses and a white jacket.
As mentioned above, he is nervous, yet quite intelligent, though sometimes his scientific babbling gets on Khan's nerves.
- In the episode, the name "Debolt" is never mentioned and he is simply referred to as "Doctor". However, his name is revealed to be Doctor Debolt in the comic book adaptation of the episode.