Prof. Dexter
Prof. John Gilmore
Ape Man
Anne Gilmore
Steve Rogers
Hilda Gilmore
Tramp, Willie the Weasel
Sergeant
Ape Man
Policeman Barney (uncredited)
Policeman (uncredited)
Theater Watchman (uncredited)
Producer
Screenplay
Producer
Director
Sound Engineer
Set Designer
Director of Photography
Music Director
Associate Producer
Special Effects
Assistant Director
Editor
