A scientist attempts to transplant a gorilla's brain into a man.
Richard Talmadge
Harry Willis
Billie Dove
Helen Hendon
Stuart Holmes
Richard Drake
George Siegmann
Wang Wu
Tom Wilson
Casanova Clay
Charles Clary
Horace Hendon
Douglas Gerrard
Mr. Black
Frankie Mann
Mrs. Spinks
Fred Kirby
Dr. Spinks
