Joyce Webster, aka Jane Marvin

Beverly Garland

Acting

Dr. Eric Lorimer

Bruce Bennett

Acting

Manon

Lon Chaney Jr.

Acting

Dr. Mark Sinclair

George Macready

Acting

Mrs. Lavinia Hawthorne

Frieda Inescort

Acting

Paul Webster

Richard Crane

Acting

Dr. Wayne McGregor

Douglas Kennedy

Acting

Patient 'Number Six' (uncredited)

Bill Bradley

Acting

Conductor

Hal K. Dawson

Acting

Porter

Dudley Dickerson

Acting

1st Male Nurse (uncredited)

John Frederick

Acting

Louann

Ruby Goodwin

Acting

Third Male Nurse (uncredited)

Ken Kane

Acting

Alligator-headed Paul

Boyd Stockman

Acting

Toby

Vince Townsend Jr.

Acting

2nd Male Nurse (uncredited)

Lee Warren

Acting