 Dennis MorganPaul Taggart | Paul Taggart |
 Viveca LindforsChristine Lund Lestrac | Christine Lund Lestrac |
 Anthony CarusoNikki | Nikki |
 William ConradFarnsworth | Farnsworth |
 Dorothy MaloneMiriam | Miriam |
 John BannerJacques Lestrac | Jacques Lestrac |
 Bruce BennettHenderson | Henderson |
 Victor FrancenPolice Inspector Beauvais | Police Inspector Beauvais |
 Eduardo CiannelliFirago | Firago |
 Tom D'AndreaGus Franklin | Gus Franklin |
 Konstantin ShaynePablo | Pablo |
 Jean De BriacLurcat | Lurcat |
 Joseph BuloffBolyanov | Bolyanov |
 Henry RowlandHermann Zinzer | Hermann Zinzer |
 Luis van RootenGeran | Geran |
 Louis MercierMarcel | Marcel |
 Clyde CookCockney Bartender | Cockney Bartender |
 George DavisFrench Waiter | French Waiter |
 Marcelle CordayElise, Pablo's housekeeper | Elise, Pablo's housekeeper |
 Douglas KennedySteve | Steve |
| AAlex AkimoffStation Master (uncredited) | Station Master (uncredited) |
 Marjorie BennettPablo's Model (uncredited) | Pablo's Model (uncredited) |
 Paul BryarDetective on Train (uncredited) | Detective on Train (uncredited) |
 Denise DarcelBar Singer (uncredited) | Bar Singer (uncredited) |
| MMarcel De La BrosseGendarme Outside Hotel (uncredited) | Gendarme Outside Hotel (uncredited) |
| CCurt FurburgJanitor (uncredited) | Janitor (uncredited) |
 Torben MeyerElderly Frenchman (uncredited) | Elderly Frenchman (uncredited) |
 Ray MontgomerySoldier (uncredited) | Soldier (uncredited) |
| AAlfred PaixStreet Artist (uncredited) | Street Artist (uncredited) |
 Paul Panzer(uncredited) | (uncredited) |
