Peter Ustinov character Marcus Pendleton / Caesar Smith
Maggie Smith character Patty Terwilliger Smith
Karl Malden character Carlton J. Klemper
Bob Newhart character Willard C. Gnatpole
Robert Morley character Caesar Smith
Cesar Romero character Customs Inspector
Elizabeth Counsell character Miss Glyn
Margaret Courtenay character Mrs. Hubbard
Lynda Baron character Louise the Waitress
Sean Barry-Weske character Hippie in Boutique
Paul Dawkins character Pritchard
Paul Farrell character Larry
Raymond Huntley character Bayswater
Peter Jones character Prison Governor
Anthony Sharp character Hollis
Kynaston Reeves character Quayle
