Luli Deste as Julia Engel

Philip Dorn as Viktor Ryder

Samuel S. Hinds as Captain Per Vallgren

Stanley Fields as Birger Simberg

Edward Norris as Paavo Luuki

John Qualen as Gustaf

John Arledge as Dick Reynolds

Hardie Albright as Tyko Gallen

Henry Brandon as Jan Sikorsky

John Ellis as Knut Vallgren

Kathryn Adams as Lissa Ryder

Abner Biberman as Russian Field Commander

Wade Boteler as German Olympics Spokesman

Addison Richards as James Burton - Speaker

Reed Hadley as Ivan Dubroski

Trevor Bardette as Russian Tunnel Team Commander

John Gallaudet as Captured Russian Soldier

Jody Gilbert as Fanni Nerkuu (as Jodi Gilbert)

Christian Rub as Jakob Sorenson - Old Villager

Leona Roberts as Mother Ryder