Danger Signal

Faye Emerson

Hilda Fenchurch

Zachary Scott

Ronnie Mason

Rosemary DeCamp

Dr. Jane Silla

Bruce Bennett

Dr. Andrew Lang

Mona Freeman

Anne Fenchurch

Richard Erdman

Bunkie Taylor (as Dick Erdman)

John Ridgely

Thomas Turner

Mary Servoss

Mrs. Fenchurch

Joyce Compton

Kate

Virginia Sale

Mrs. Crockett

Robert Arthur

Hotel Boy

Monte Blue

Policeman in Car

Clancy Cooper

Police Captain with Suicide Note

Howard M. Mitchell

Roomer

James Notaro

Policeman in Car

Paul Panzer

Police in Office

Addison Richards

Police Inspector

J. Scott Smart

Mrs. Crockett's Roomer