Cast
- Philippe Leroy as Paolo Respighi
- Pamela Tiffin as Annie Robson/Mylene
- Graziella Granata as the real Annie Robson
- Bernard Blier as William Derek Robson
- Massimo Serato as Preston
- Fernando Sancho as Omar
- Luciano Pigozzi as Salah
- Giulio Donnini as Foster
- Consalvo Dell'Arti as ship's waiter
- Adriana Facchetti as Luisa