Ordinary Seaman Norman Puckle

Norman Wisdom

Admiral Sir Bryanston Blyth

Ian Hunter

Chief Petty Officer Knowles

David Lodge

Commander Clayton

Robert Urquhart

Mr. Philpots

Edward Chapman

Prosecuting counsel

John Le Mesurier

Defending Counsel

Terence Alexander

Petty Officer Filkins

Eddie Byrne

Sailor in Cinema Fight (uncredited)

Michael Caine

Diving Instructor

Peter Jones

Teddy Boy in Cinema Fight (uncredited)

Oliver Reed

Naafi Girl

Liz Fraser

Speedboat Owner

Sydney Tafler

Bert Ainsworth

Brian Oulton

Miss Marlene Barlow

Penny Morrell

Streaky Hopkinson

Harold Goodwin

Johnny Nolan

Johnny Briggs

Peggy - Girl in Bar

Claire Gordon

Tall Sailor

Joe Robinson

Polynesian Girl

Julie Shearing

Mr. Carruthers

Frank Williams

Doris (uncredited)

Sheila Hancock

Peggy (uncredited)

Rosamund Lesley

Yachtsman (uncredited)

Leonard Sachs

Gym Instructor (uncredited)

Glyn Houston

Landlord

Cyril Chamberlain

Briggs (uncredited)

John Arnatt

Sailor (uncredited)

Rodney Cardiff

Sailor (uncredited)

Bill Cummings

Control Room Radio Operator (uncredited)

Roland Curram

New Dalton's Boy (uncredited)

Larry Dann

Sailor on Bridge of Warship (uncredited)

Robert Desmond

Man in Cinema Queue (uncredited)

Chick Fowles

Sailor (uncredited)

Tex Fuller

Girl in Cinema Queue (uncredited)

Imogen Hassall

Prisoner Escort (uncredited)

Roy Lansford

Teddy Boy in Cinema Fight (uncredited)

Philip Locke

Sailor (uncredited)

Keith Peacock

Physical Training Instructor (uncredited)

Bryan Pringle

Space Centre Operator (uncredited)

William Roache

Instructor's Assistant (uncredited)

Anthony Sagar

Sailor (uncredited)

Arnold Schulkes

Polynesian Girl (uncredited)

Anne Scott

Naval Officer (uncredited)

John Tatham