Charles Fleischer

as Amon Feist

as Professor Kroninger

as Bob Vaughn

as Boris / White Mountain Postmaster (voice)

as Boris (voice)

as Henry

as Dr. Krickstein

as Bart Bimini

as Allen from Mr. Chompers

as Randy

as Mr. Woodson

as Wally Enfield

as Dweeb (voice)

as Roger Rabbit (voice)

as Pontiac

as Tony

as Roger Rabbit (voice) (uncredited)

as Roger Rabbit (voice)

as Terry

as Roger Rabbit (voice)

as Stagehand Charlie / Roger Rabbit (voice)

as Self

as Roger Rabbit / Benny The Cab / Greasy / Psycho (voice)

as BB (voice)

as Dr. King

as David Maddow

as Brick