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