David Niven
Alex Bolt
Acting
Virna Lisi
Rhonda Bolt
Acting
Robert Vaughn
Ray Whiteley
Acting
Ann Bell
Pat Demarest
Acting
John Cleese
Harry
Acting
Tim Brooke-Taylor
Hillcrest
Acting
Hugh Burden
Sir Geoffrey
Acting
Erik Chitty
Mouser
Acting
Derek Francis
Sanders
Acting
Susan Travers
Mrs. Southwick
Acting
Desmond Walter-Ellis
Mr. Southwick
Acting
David Allister
Mr. Westbury
Acting
Maureen Lane
Mrs. Westbury
Acting
Zoe Sallis
Mrs. Euston
Acting
Graham Chapman
News reader
Acting
Mario Guizzardi
George French (uncredited)
Acting