| Princess Olga | 卡洛·朗白
 | |
| King Mantell | 弗莱德·麦克莫瑞
 | |
| Inspector Lorel | Douglass Dumbrille
 | |
| Lady Gertrude Allwyn | Alison Skipworth | |
| Captain Nicholls | George Barbier | |
| Benton | William Frawley
 | |
| Robert M. Darcy | Porter Hall
 | |
| Inspector Cragg | Lumsden Hare | |
| Inspector Steindorf (as Sig Rumann) | Sig Ruman | |
| Inspector Morevitch | 米沙·奥尔
 | |
| The Stranger | Bradley Page | |
| Inspector Kawati | Tetsu Komai | |
| Assistant Purser (scenes deleted) | Larry Steers | |
| Undetermined Role (uncredited) | Monya Andre | |
| Ship's Bellhop (uncredited) | 本尼·巴莱特
 | |
| Undetermined Role (uncredited) | Virginia Cabell | |
| Film Man (uncredited) | George Chandler | |
| Assistant Purser (uncredited) | David Clyde | |
| Reporter (uncredited) | Keith Daniels | |
| Undetermined Role (uncredited) | Blair Davies | |
| French Baggage Official (uncredited) | Jean De Briac | |
| Girl (uncredited) | Chloe Douglas | |
| Reporter (uncredited) | Eddie Dunn | |
| Ship's Surgeon (uncredited) | Dick Elliott | |
| French Baggage Official (uncredited) | Charles Fallon | |
| Photographer (uncredited) | Gaston Glass | |
| Reporter (uncredited) | Jack Hatfield | |
