John Hannah

as Prof. Ian Holbourn

Kenneth Cranham

as Captain Turner

Florian Panzner

as Lt. Capt. Schwieger

Michael Feast

as Captain Hobbs

Graham Hopkins

as Staff Captain Anderson

Adrian Topol

as Vogele

Madeleine Garrood

as Avis Dolphin

Frances Marek

as Alice

Martin Le Maitre

as Winston Churchill

Kevin Otto

as Alfred Vanderbilt

Karen Haacke

as Dorothy Taylor

Dean McCoubrey

as Capt. Windridge

Andre Weideman

as Johnston

Ronald France

as Lord Mersey

Stephen Jennings

as Carson

Aiden Lithgow

as Tom

Erich Krieg

as German Admiralty

Robyn LeAnn Scott

as Peggy

Andrew Whaley

as Officer Pryce