David Tomlinson

as Tom Baker

Peggy Cummins

as Susan Lashwood

Brian Reece

as Lieutenant Commander Peter Fraser

Eunice Gayson

as Jane Godfrey

A.E. Matthews

as Admiral Sir Maximillian Godfrey, K.C.B.

Joan Sims

as Mary

Lionel Murton

as Psychiatrist

Reginald Beckwith

as Receptionist

Desmond Walter-Ellis

as Flag Lieutenant Willy Oughton-Formby

Ronald Shiner

as Salty Simpson

Peter Coke

as Lieutenant Lashwood

Derek Blomfield

as Sub-Lieutenant Dobson

Tom Gill

as Petty Officer

Howard Williams

as Sub-Lieutenant

Joan Hickson

as Mother

Toke Townley

as Steward

Arthur Lovegrove

as Orderly

Ronald Adam

as First Sea Lord

Sam Kydd

as Attendant

Philip Ashley

as First Officer (uncredited)

Alfie Bass

as Orderly (uncredited)

Richard Duke

as Crewman (uncredited)

Roy Everson

as Seaman Jones (uncredited)

Harold Goodwin

as Parker (uncredited)

Everley Gregg

as Housekeeper (uncredited)

David Hannaford

as Alfie (uncredited)

Victor Harrington

as Naval Officer (uncredited)

James Hayter

as Sir Henry Tomkinson (uncredited)

Walter Horsbrugh

as Night Receptionist (uncredited)

Emrys Leyshon

as Radio Operator (uncredited)

George Moon

as Casey (uncredited)

Donald Pickering

as Second Officer (uncredited)

Jimmy Ray

as Bert (uncredited)

James Sharkey

as Despatch Rider (uncredited)

John Timberlake

as Visitor on HMS Sherwood (uncredited)

Neil Wilson

as Seaman Washing Deck (uncredited)