 James GarnerCasey Barnett | Casey Barnett |
 Dick Van DykePaul Sloane | Paul Sloane |
 Elke SommerNikki Dunnay | Nikki Dunnay |
 Angie DickinsonLaurie Gibson | Laurie Gibson |
 Ethel MermanMadame Coco La Fontaine | Madame Coco La Fontaine |
 Carl ReinerRodin | Rodin |
 Pierre OlafInspector Carnot | Inspector Carnot |
 Miiko TakaChou Chou | Chou Chou |
 Roger C. CarmelZorgus | Zorgus |
| IIrving JacobsonMr. Fromkis | Mr. Fromkis |
 Jay NovelloJanitor | Janitor |
 Naomi StevensMrs. Sarah Fromkis | Mrs. Sarah Fromkis |
 Renzo CesanaPepe de Winter | Pepe de Winter |
 Leon BelascoPrince | Prince |
 Louis MercierMagistrate | Magistrate |
 Maurice MarsacProsecutor | Prosecutor |
 Fifi D'OrsayFanny | Fanny |
 Marcel HillaireExecutioner | Executioner |
| DDawn VillereCouchette | Couchette |
 Nan MartinMargo | Margo |
 Victoria CarrollYvette | Yvette |
| SSharon ShoreBetti | Betti |
| AAstrid De BreaCerise | Cerise |
 Émile GenestCesar (uncredited) | Cesar (uncredited) |
 Brad JohnsonArt Collector (uncredited) | Art Collector (uncredited) |
 Charles SherlockCourtroom Spectator (uncredited) | Courtroom Spectator (uncredited) |
| HHal TaggartTourist (uncredited) | Tourist (uncredited) |
| LLovyss BradleyTour Group Member (uncredited) | Tour Group Member (uncredited) |
| PPaul BradleyRestaurant Patron (uncredited) | Restaurant Patron (uncredited) |
| RRalph BrooksRestaurant Patron (uncredited) | Restaurant Patron (uncredited) |
