Norman Wisdom

Norman

Ian Hunter

Admiral Sir Bryanston Blyth

David Lodge

Chief Petty Officer Knowles

John Le Mesurier

Prosecuting counsel

Terence Alexander

Defending Counsel

Michael Caine

Sailor in Cinema Fight (uncredited)

Oliver Reed

Teddy Boy in Cinema Fight (uncredited)

Robert Urquhart

Cmdr. Clayton

Edward Chapman

Mr. Philpots

Liz Fraser

NAAFI Girl

Penny Morrell

Marlene Barlow

Claire Gordon

Peggy - Girl in Bar

Julie Shearing

WRN Smith

Sheila Hancock

Doris

Rosamund Lesley

Peggy

Frank Williams

Mr. Carruthers

Johnny Briggs

Johnny Nolan

John Arnatt

Briggs (uncredited)

Keith Peacock

Sailor (uncredited)

Eddie Byrne

Petty Officer Filkins

Peter Jones

Diving Instructor

Sydney Tafler

Speedboat Owner

Brian Oulton

Bert Ainsworth

Harold Goodwin

Streaky Hopkinson

Frank Williams

Mr Carruthers

Joe Robinson

Tall Sailor

Bryan Pringle

PTI (uncredited)