Don Adams

Don Adams

Inspector Gadget (voice)

Acting

Frank Welker

Frank Welker

Brain / Dr. Claw / M.A.D. Cat / Santa Claus (voice)

Acting

Maurice LaMarche

Maurice LaMarche

Chief Quimby (voice)

Acting

Erica Horn

Erica Horn

Penny (voice) (as Erica Horne)

Acting