Un brillante estafador logra hacerse con una gran suma de dinero de una multinacional, gracias a un programa informático.
 | Peter Ustinov | Marcus Pendleton / Caesar Smith |
 | Maggie Smith | Patty Terwilliger Smith |
| Karl Malden | Carlton J. Klemper |
| Bob Newhart | Willard C. Gnatpole |
| Robert Morley | Caesar Smith |
| Cesar Romero | Customs Inspector |
| Lynda Baron | Louise the Waitress |
| Sean Barry-Weske | Hippie in Boutique |
| David Bedard | Co-pilot |
| William Burleigh | Page Boy |
| Wilfred Carter | Theatre Manager |
| Elizabeth Counsell | Miss Glyn |
| Margaret Courtenay | Mrs. Hubbard |
| Patsy Crowther | Second Charwoman |
| Paul Dawkins | Pritchard |
