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 as Policeman (uncredited)

Lassie Lou Ahern as Young Girl (uncredited)

John Ardizoni as Cab Man (uncredited)

Antonio D'Amore as Cab Man (uncredited)

Joseph Romantini as Cab Man (uncredited)

Guy Zanette as Cab Man (uncredited)

Wilson Benge as Pedestrian (uncredited)

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 as Bit Part (uncredited)

Clive Morgan as Bit Part (uncredited)

Elsie Prescott as Bit Part (uncredited)