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)
Director
Screenplay
Producer
Producer
Associate Producer
Director of Photography
Editor
Assistant Director
Set Designer
Sound Engineer
Special Effects
Music Director
