Half-brothers Stefane and Antony despise their biological father, callous millionaire Charles Calvert. Because Charles refuses to share his wealth with his sons, Stefane and Antony ask hip American thrill-seeker Duffy to help steal the money they believe is their birthright. When Charles decides to move a large portion of his savings from Morocco to France, Duffy has an opportunity to stage a daring burglary attempt at sea.
| Actor | Role |
|---|---|
 James CoburnDuffy | Duffy |
 James MasonCharles Calvert | Charles Calvert |
 James FoxStefane Calvert | Stefane Calvert |
 Susannah YorkSegolene | Segolene |
 John AldertonAntony Calvert | Antony Calvert |
 Guy DeghyCaptain Schallert | Captain Schallert |
 Carl DueringBonivet | Bonivet |
 Tutte LemkowSpaniard | Spaniard |
 Marne MaitlandAbdul | Abdul |
 André MaranneGarain | Garain |
| JJulie MendezBelly Dancer | Belly Dancer |
| BBarry ShawzinBakirgian | Bakirgian |
| MManuel Hernández AsensioWaiter | Waiter |
| PPatrick LichfieldPhotographer | Photographer |
 Steve PlytasMoroccan | Moroccan |
| PPeter van DisselRadio Operator | Radio Operator |