Jeffrey Hunter

Signalman Andrew 'Canada' Brown

Michael Rennie

Lt. Richard Saville

Wendy Hiller

Lucinda Bentley

Bernard Lee

Petty Officer 'Stokes' Wheatley

Victor Maddern

Signalman Willy Earnshaw

John Horsley

Commander John Willis

Patrick Barr

Captain Tom Ashley, HMS Amesbury

Robin Bailey

Lieutenant John Stafford, HMS Stratford

James Drake

Navigator (uncredited)

Roy Boulting