Boris Karloff

Dr. Julian Blair

Richard Fiske

Dr. Richard Sayles

Amanda Duff

Anne Blair

Anne Revere

Mrs. Walters

Dorothy Adams

Mrs. Marcy

Walter Baldwin

Seth Marcy

Kenneth MacDonald

Sheriff Ed Willis

Shirley Warde

Helen Blair

Cy Schindell

Karl

Ernie Adams

Elam

Lester Allen

Dr. Van Den

Wheaton Chambers

Dr. Sanders

Eddie Kane

Professor Walt

Harrison Greene

Mr. Booth

Erwin Kalser

Professor Kent