David Niven

Alex Bolt

Virna Lisi

Rhonda Bolt

Robert Vaughn

Ray Whiteley

Ann Bell

Pat Demarest

John Cleese

Harry

Tim Brooke-Taylor

Hillcrest

Hugh Burden

Sir Geoffrey

Erik Chitty

Mouser

Derek Francis

Sanders

Susan Travers

Mrs. Southwick

Desmond Walter-Ellis

Mr. Southwick

Zoe Sallis

Mrs. Euston

Graham Chapman

News reader

Mario Guizzardi

George French (uncredited)