Atom at Spithead

George Brent

Dean Evans

Dane Clark

Dan Miller

Mercedes McCambridge

Kate Wells

Russell Napier

Admiral Habberfield

Howard Marion-Crawford

McKenna

Clifford Evans

Air Marshal Fraylie

Robert Beatty

John Templar

Brian Oulton

Denver

Richard Caldicot

Lord Belding

Veronica Hurst

Beth Templar

Leslie Phillips

Keynes

George Pravda

Visitor

Seymour Green

Reception Clerk