 | Don Adams als Inspector Gadget (voice) |
 | Frank Welker als Brain / Dr. Claw / M.A.D. Cat / Santa Claus (voice) |
 | Maurice LaMarche als Chief Quimby (voice) |
 | Erica Horn als Penny (voice) (as Erica Horne) |
| Chuck Patton | Director |
| Jack Hanrahan | Writer |
| Eleanor Burian-Mohr | Writer |
| Jean Chalopin | Characters |
| Andy Heyward | Characters |
| Bruno Bianchi | Characters |
