Philip Michael Thomas

as Randy / Brother Rabbit (voice)

Barry White

as Sampson / Brother Bear (voice)

Charles Gordone

as Preacherman / Preacher Fox (voice)

Scatman Crothers

as Pappy / Old Man Bone (voice)

Danny Rees

as Clown (voice)

Buddy Douglas

as Referee (voice)

Jim Moore

as Mime (voice)

Al Lewis

as The Godfather (voice) (uncredited)

Richard Paul

as Sonny (voice) (uncredited)

Frank De Kova

as Managan (voice) / Ruby (voice) (uncredited)

Ralph Bakshi

as Cop With Megaphone (voice) (uncredited)

Jesse Welles

as Marrigold (voice) / Miss America (voice) (uncredited)

Ben Gage

as Brother Bear (voice) (uncredited)

Mihaly 'Michu' Meszaros

as Boxing referee (uncredited)