Twin sisters trade places with unexpected results
| Stefanie Powers | .... | Sabrina/Stephanie |
| Barry Bostwick | .... | Grant Roberts |
| Jeremy Brett | .... | Bryan Foxworth |
| James Faulkner | .... | Richard |
| Sam Wanamaker | .... | Jim Nolan |
| Fabio Testi | .... | Carlo |
| John Woodvine | ||
| Joan Sims | .... | Mrs. Thirkell |
| Fairuza Balk | ||
| Brenda Vaccaro | .... | Helen Adams |
| Gina Lollobrigida | .... | Princess Alessandra |
| Jeremy Miller (I) | ||
| Christopher Rozycki | ||
| Peter Woodward (I) | ||
| Hugh Millais |
