| Person | Type | Job | Role(s) |
|---|---|---|---|
 Clarence Eurist | Crew | Directing | Assistant Director |
David Chudnow | Crew | Sound | Music Supervisor |
Don L. Cash | Crew | Costume & Make-Up | Makeup Artist |
 Douglas Sirk | Crew | Directing | Director |
Henry S. Kesler | Crew | Production | Associate Producer |
 Hunt Stromberg | Crew | Production | Executive Producer |
Jacques Companéez | Crew | Writing | Story |
John M. Foley | Crew | Editing | Editor |
John R. Carter | Crew | Sound | Sound |
Josephine Sweeney | Crew | Costume & Make-Up | Hairstylist |
Leo Rosten | Crew | Writing | Screenplay |
Michel Michelet | Crew | Sound | Original Music Composer |
Nicolai Remisoff | Crew | Art | Production Design, Art Direction |
Simon Gantillon | Crew | Writing | Story |
Victor Greene | Crew | Art | Assistant Art Director |
William H. Daniels | Crew | Camera | Director of Photography |
Ernest Neuville | Crew | Writing | Story |
Joseph I. Kane | Crew | Sound | Sound |
Elois Jenssen | Crew | Costume & Make-Up | Costume Design |
James Nasser | Crew | Production | Producer |
 Alan Mowbray | Cast | Actor | Lyle Maxwell |
 Alan Napier | Cast | Actor | Detective Gordon |
Alex Frazer | Cast | Actor | Professor Harkness (uncredited) |
 Ann Codee | Cast | Actress | Matilda |
 Annette Warren | Cast | Actress | Blonde Nightclub Singer (uncredited) |
 Boris Karloff | Cast | Actor | Charles van Druten |
 Brooks Benedict | Cast | Actor | Concertgoer (uncredited) |
 Carl M. Leviness | Cast | Actor | Concertgoer (uncredited) |
 Cedric Hardwicke | Cast | Actor | Julian Wilde |
 Charles Coburn | Cast | Actor | Harley Temple |
 Charles Coleman | Cast | Actor | Sir Charles (uncredited) |
 Cyril Delevanti | Cast | Actor | Medical Examiner (uncredited) |
 Dorothy Vaughan | Cast | Actress | Mrs. Miller (uncredited) |
 Eddie Parks | Cast | Oswald Pickering (uncredited) | |
Eric Wilton | Cast | Actor | Ticket Booth Clerk (uncredited) |
 Ethan Laidlaw | Cast | Actor | Man in Dance Hall (uncredited) |
 Ethelreda Leopold | Cast | Blonde Nightclub Singer (uncredited) | |
 Florence Wix | Cast | Actress | Blue Eyes (uncredited) |
 Frank McLure | Cast | Actor | Concertgoer (uncredited) |
 George Sanders | Cast | Actor | Robert Fleming |
 George Zucco | Cast | Actor | H.R. Barrett |
 Gerald Hamer | Cast | Actor | Harry Milton (uncredited) |
 Harold Miller | Cast | Actor | Concertgoer in Lobby (uncredited) |
 Herbert Evans | Cast | Actor | Fleming's Butler (uncredited) |
 Isabel La Mal | Cast | Actress | Dowager Shushing Fleming at Concert (uncredited) |
 Jack Chefe | Cast | Actor | Pierre (uncredited) |
Jack Deery | Cast | Actor | Police Officer (uncredited) |
 James Conaty | Cast | Actor | Concertgoer (uncredited) |
 Jeffrey Sayre | Cast | Actor | Concertgoer (uncredited) |
 Jimmy Aubrey | Cast | Actor | Nelson (uncredited) |
Joe Gilbert | Cast | Actor | Concertgoer (uncredited) |
John Rice | Cast | Actor | Police Officer (uncredited) |
 Joseph Calleia | Cast | Actor | Nicholas Moryani |
 Lucille Ball | Cast | Actress | Sandra Carpenter |
 Marjorie Hoshelle | Cast | Actress | Robert's Rejected Girlfriend (uncredited) |
 Robert Coote | Cast | Actor | Detective Wilson |
Robert Haines | Cast | Actor | Concertgoer (uncredited) |
 Sam Harris | Cast | Actor | Old Man at Concert Asking for Whiskey (uncredited) |
 Sayre Dearing | Cast | Actor | Concertgoer in Lobby (uncredited) |
 Shep Houghton | Cast | Actor | Nightclub Patron (uncredited) |
 Stuart Hall | Cast | Actor | Charles (uncredited) |
 Tanis Chandler | Cast | Actress | Lucy Barnard |
 Wilbur Mack | Cast | Actor | Concertgoer (uncredited) |
 Wilson Benge | Cast | Actor | Police Criminologist (uncredited) |
 Wyndham Standing | Cast | Actor | Assistant Medical Examiner (uncredited) |
 Mike Lally | Cast | Actor | Mike (uncredited) |
 Sol Murgi | Cast | Nightclub Patron (uncredited) | |
Charles Ferguson | Cast | Actor | Man in Dance Hall (uncredited) |
Rudy Germane | Cast | Actor | Concertgoer (uncredited) |
 Herschel Graham | Cast | Actor | Concertgoer (uncredited) |
Mary Jane French | Cast | Actress | Nightclub Patron (uncredited) |
Marion Gray | Cast | Actress | Concertgoer (uncredited) |
| Person | Type | Job | Role(s) |
