 | Robert Montgomery als Prince Florizel |
 | Rosalind Russell als Miss Vandeleur |
 | Frank Morgan als Colonel Geraldine |
 | Reginald Owen als President of Club |
 | E. E. Clive als King |
 | Louis Hayward als Young Man with Cream Tarts |
 | Walter Kingsford als Malthus |
 | Ivan F. Simpson als Collins (as Ivan Simpson) |
 | Tom Moore als Major O'Rook |
 | Robert Greig als Fat Man |
 | Pedro de Cordoba als Sergei |
 | Leyland Hodgson als Captain Rich (as Leland Hogdson) |
 | John George als Small Man with Entourage (uncredited) |
 | Robert Adair als Constable (Uncredited) |
| Lowden Adams als Waiter with Plum Pudding (Uncredited) |
| Carola Alena als Gypsy Dancer (Uncredited) |
| Dorothy Arville als Singer in Restaurant (Uncredited) |
 | Sidney Bracey als Noel's Henchman (Uncredited) |
 | Leonard Carey als Valet (Uncredited) |
 | Frank Darien als Ambassador's Aide (Uncredited) |
 | Pat Flaherty als Ship's Officer (Uncredited) |
 | Forrester Harvey als Hotel Waiter (Uncredited) |
 | Olaf Hytten als Butler (Uncredited) |
 | Edgar Norton als Herald (Uncredited) |
 | Pat O'Malley als Purser (Uncredited) |
 | Paul Porcasi als Cafe Proprietor (Uncredited) |
 | Guy Bates Post als Ambassador of Irania (Uncredited) |
 | Tom Ricketts als Sir Frederick (Uncredited) |
| Edward E. Paramore Jr. | Screenplay |
| J. Walter Ruben | Director |
| Manuel Seff | Screenplay |
| Robert Louis Stevenson | Novel |
| Walter Jurmann | Music |
| Robert Kern | Editor |
| Dolph Zimmer | Assistant Director |
| Bronislau Kaper | Music |
| Louis D. Lighton | Producer |
| Dolly Tree | Wardrobe Supervisor |
| Robert J. Schiffer | Makeup Artist |
| Joseph C. Wright | Art Direction |
| Jack Dawn | Makeup Artist |
| Douglas Shearer | Recording Supervision |
| Cedric Gibbons | Art Direction |
| Edwin B. Willis | Art Direction |
| Franz Waxman | Original Music Composer |
| Clifford Vaughan | Additional Music |
| Charles G. Clarke | Director of Photography |
