Cast & Crew
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William HoldenRichard "Rick" Benson - Audrey HepburnGabrielle "Gaby" Simpson
- Noël CowardAlexander Meyerheim
- Gregoire AslanPolice Insp. Gilet
- Raymond BussièresFrançois
- Christian DuvaleixMaitre d'Hotel
- Tony CurtisMaurice/Philippe
- Marlene DietrichHerself
- Mel FerrerCostume party Jekyll & Hyde
- Fred AstaireSinging Voice
- Frank SinatraSinger
- Dominique BoscheroActor
- Evi MarandiActor
- Richard QuineDirector
- Richard QuineProducer
- George AxelrodProducer
- George AxelrodWriter