Rita Tushingham as Penelope

Dudley Moore as Sergeant

Harry Secombe as Shelter Man

Arthur Lowe as Father

Roy Kinnear as Plastic Mac Man

Spike Milligan as Mate

Jimmy Edwards as Nigel

Michael Hordern as Bules Martin

Peter Cook as Inspector

Ralph Richardson as Lord Fortnum of Alamein

Mona Washbourne as Mother

Richard Warwick as Alan

Frank Thornton as The BBC

Dandy Nichols as Mrs Ethel Shroake

Jack Shepherd as Underwater Vicar

Marty Feldman as Nurse Arthur

Bill Wallis as The Prime Minister

Henry Woolf as Electricity Man

Gordon Rollings as Drip Feed Patient

Ronnie Brody as Chauffeur

Cecil Cheng as Chinaman

Edward Malin as Club Waiter

Chris Konyils as Policeman