Cecil Parker

Arthur Prohack

Dirk Bogarde

Charles Prohack

Hermione Baddeley

Eve Prohack

Sheila Sim

Mary Prohack

Glynis Johns

Mimi Warburton

Denholm Elliott

Oswald Morfrey

Jon Pertwee

Plover

Heather Thatcher

Lady Maslam

Campbell Cotts

Sir Paul Spinner

Bryan Forbes

Tony

Frederick Valk

Dr. Viega

Charles Goldner

Polish Man Servant

Russell Waters

Cartwright

Henry Edwards

Sir Digby Bunce

James Hayter

Carrell Quire

Ada Reeve

Mrs. Griggs

Frances Waring

Nursie

Judith Furse

Laura Postern

Frederick Leister

The Director General

Elwyn Brook-Jones

Benny Erivangian

Eric Berry

Tailor's Assistant (uncredited)

Janet Burnell

Mr. Prohack's Personal Assistant (uncredited)

Ian Carmichael

Hat Salesman (uncredited)

Anne Gunning

Actress (uncredited)

Humphrey Heathcote

Turkish Bath Attendant (uncredited)

Desmond Newling

Pageboy (uncredited)

Lloyd Pearson

Mr. Bishop (uncredited)

Stanelli

Orchestra Leader (uncredited)

Jerry Verno

Taxi Driver (uncredited)