The Ape Man

Béla Lugosi

Dr. James Brewster

Louise Currie

Billie Mason

Wallace Ford

Jeff Carter

Henry Hall

Dr. George Randall

Minerva Urecal

Agatha Brewster

Emil Van Horn

The Ape

J. Farrell MacDonald

Captain O'Brien

Wheeler Oakman

Brady

Ralph Littlefield

Zippo

Jack Mulhall

Reporter

Charles Jordan

O'Toole

Charlie Hall

Barney