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