Lugosi Béla

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

William Beaudine

Director

Karl Brown

Story

Barney A. Sarecky

Screenplay

Dave Milton

Art Direction

Sam Katzman

Producer

Mack Stengler

Director of Photography

Carl Pierson

Editor

Arthur Hammond

Assistant Director

Jack Dietz

Producer

Barney A. Sarecky

Associate Producer

Glen Glenn

Sound