William S. Whitley
William Powell
Vicky Whitley
Hedy Lamarr
Ethel
Phyllis Kennedy
Lloyd X. Hunter
James Craig
Margaret Sibyll
Fay Bainter
Professor Stowe
Henry O'Neill
Nancy Potter
Spring Byington
Strand
Robert Sully
Dr. Green
Morris Ankrum
Audience member at violin concert
Bess Flowers
Porter (uncredited)
James Baskett
Adaptation
Harry Kurnitz
Director
Alexander Hall
Screenplay
Walter Reisch
Art Direction
Cedric Gibbons
Original Music Composer
Bronislau Kaper
Michael Arlen
Producer
Arthur Hornblow Jr.
Story
Jacques Théry
Editor
Blanche Sewell
Assistant Director
Bill Lewis