Reparto y equipo
- Bryant HalidayThe Great Vorelli
-
William SylvesterMark English - Yvonne RomainMarianne
- Sandra DorneMagda
- Karel ŠtěpánekDr. Heller
- Francis de WolffDr. Keisling
- Nora NicholsonAunt Eva
- Alan GiffordBob Garrett
- Philip RayUncle Walter (uncredited)
- Pamela LawWoman with Garrett (uncredited)
- Heidi ErichGrace (uncredited)
- Anthony BairdSoldier (uncredited)
- Trixie DallasMiss Penton (uncredited)
- Margaret DurnellCountess (uncredited)
- Ray LandorExpert Twist Dancer (uncredited)
- Ella TraceyLouisa (uncredited)
- Guy DeghyHans (uncredited)
- David CharlesworthHugo Novik (uncredited)
- Lorenza ColvilleMercedes (uncredited)
- Jackie RamsdenNurse (uncredited)
- Lindsay ShonteffDirección
- Lindsay ShonteffProducción
- Kenneth RiveProducción
- Richard GordonProducción
- Gerald A. FernbackProducción
- Ronald KinnochEscritor
- Charles F. VetterEscritor