Carla Balenda

Janet Keller

Elliott Reid

Matt Corbin

Edgar Barrier

Dr. Edward Keller

Raymond Burr

Steve Loomis

Otto Waldis

Dr. Wilhelm Bucholtz

Michael Steele

Chick

Lurene Tuttle

Molly Loomis

Peter Brocco

Nate Garr

Lewis Martin

Peterson

Frank Darien

Luther Adams

Olive Carey

Mabel Turner

George Barrows

Federal Agent (uncredited)

Stanley Blystone

Guard on Pier (uncredited)

Eddie Borden

Medical Experiment Patient (uncredited)

George Bruggeman

Federal Agent (uncredited)

William Cameron Menzies