I'm a Monkey's Uncle

Moe Howard

as Moe

Larry Fine

as Larry

Shemp Howard

as Shemp

Dee Green

as Baggie

Virginia Hunter

as Aggie

Nancy Saunders

as Maggie

Heinie Conklin

as Milkman (uncredited)

Joe Palma

as Caveman Rival (uncredited)

Cy Schindell

as Caveman Rival (uncredited)

Bill Wallace

as Caveman Rival (uncredited)