El único testigo

Barbara Stanwyck

Cheryl Draper

George Sanders

Albert Richter

Gary Merrill

Police Lt. Lawrence Mathews

Jesse White

Police Sgt. Eddie Vincent

Harry Shannon

Captain Donnelly

Claire Carleton

May - Mental Patient

Lewis Martin

Psychiatrist

Dick Elliott

Apartment Manager

Harry Tyler

Charlie

Juanita Moore

Negress - Mental Patient

Joy Hallward

Fellow Worker

Adeline De Walt Reynolds

The Old Lady - Mental Patient (as Adeline de Walt Reynolds)

Claude Akins

Police Officer (uncredited)

Jean Fenwick

Nurse (uncredited)

Burt Mustin

Building Night Watchman at End (uncredited)

Lyn Thomas

Joyce Stewart (uncredited)

Helen Kleeb

Mental Ward Nurse

Russell Custer

Police Officer (uncredited)

Sam Edwards

Tommy (uncredited)

Fred Graham

Plainclothes Man (uncredited)