"A newlywed fears she's going mad when strange things start happening at the family mansion."
Charles Boyer
as Gregory Anton
Ingrid Bergman
as Paula Alquist
Joseph Cotten
as Brian Cameron
May Whitty
as Bessie Thwaites
Angela Lansbury
as Nancy Oliver
Barbara Everest
as Elizabeth Tompkins
Emil Rameau
as Maestro Guardi
Edmund Breon
as General Huddleston
Halliwell Hobbes
as Mr. Muffin
Tom Stevenson
as Williams
Heather Thatcher
as Lady Mildred Dalroy
Lawrence Grossmith
as Lord Dalroy
Jakob Gimpel
as Pianist
Jack Kirk
as Cab Driver (uncredited)
Lillian Bronson
as Lady (uncredited)
Leonard Carey
as Guide (uncredited)
Alec Craig
as Turnkey (uncredited)
Helen Flint
as Franchette (uncredited)
Gibson Gowland
as Servant (uncredited)
Gary Gray
as Boy in Park with Nanny (uncredited)
Terry Moore
as Paula Alquist, age 14 (uncredited)
Syd Saylor
as Baggage Clerk (uncredited)
Morgan Wallace
as Fred Garrett (uncredited)
Maude Fealy
as Bit Part (uncredited)
Frank Baker
as Pedestrian (uncredited)
Harry Adams
as Policeman (uncredited)
Joseph North
Lassie Lou Ahern
as Young Girl (uncredited)
John Ardizoni
as Cab Man (uncredited)
Antonio D'Amore
Joseph Romantini
Guy Zanette
Wilson Benge
Arthur Blake
as Butler (uncredited)
Roger Gray
as Stranger (uncredited)
Bobby Hale
as Lamplighter (uncredited)
Joy Harington
as Laura Pritchard (uncredited)
Charles McNaughton
as Wilkins (uncredited)
Georgie Nokes
as Boy (uncredited)
Tarquin Olivier
as Boy in Museum (uncredited)
Arthur Stone
as Durkin (uncredited)
Eric Wilton
as Valet (uncredited)
Eustace Wyatt
as Budge (uncredited)
Al Ferguson
Clive Morgan
Elsie Prescott
Walter Reisch
Screenplay
John L. Balderston
John Van Druten
George Cukor
Director
Patrick Hamilton
Original Story
Theatre Play
Jack Dawn
Makeup Designer
Joseph Ruttenberg
Director of Photography
Arthur Hornblow Jr.
Producer
Cedric Gibbons
Art Direction
Ralph E. Winters
Editor
Edwin B. Willis
Set Decoration
Bronislau Kaper
Original Music Composer
Irene
Costume Design
Marion Herwood Keyes
Assistant Costume Designer
Robert Franklyn
Orchestrator
David O. Selznick
Thanks
Warren Newcombe
Special Effects
Sidney Cutner
Edward Woehler
Unit Production Manager
Conrad Salinger
Jack Greenwood
Assistant Director
William Ferrari
Assistant Art Director
Writer
Joe Edmondson
Sound Designer
Douglas Shearer