The Spiral Staircase

Dorothy McGuire

Helen

George Brent

Professor Warren

Ethel Barrymore

Mrs. Warren

Kent Smith

Dr. Parry

Rhonda Fleming

Blanche

Gordon Oliver

Steve Warren

Elsa Lanchester

Mrs. Oates

Sara Allgood

Nurse Barker

Rhys Williams

Mr. Oates

James Bell

Constable

Erville Alderson

Dr. Harvey (uncredited)

Ellen Corby

Neighbour (uncredited)

Myrna Dell

Murder Victim (uncredited)

George Holmes

The Killer's 'Shadow' (uncredited)

Stanley Price

Starry-eyed Man (uncredited)

Robert Siodmak

The Killer's 'Eye' (uncredited)

Richard Tyler

Freddy (uncredited)

Charles Wagenheim

Desk Clerk (uncredited)

Larry Wheat

Minister (uncredited)

Robert Siodmak

Director

Harry Scott

Assistant Director

Ethel Lina White

Novel

Mel Dinelli

Screenplay

Dore Schary

Producer

Edgar Peterson

Production Assistant

Fred Fleck

Production Manager

Nicholas Musuraca

Director of Photography

Albert S. D'Agostino

Art Direction

Harry Gerstad

Editor

Jack Okey

Art Direction

Harry Marker

Editor