Lillian Gish
Mrs. Bergesen
Cedric Hardwicke
Admiral Bowen
Ray Collins
Johan Bergesen
Alexander Knox
German Captain
Rosemary DeCamp
Hilma Arnesen
Elisabeth Fraser
Anna Korstad
Richard Derr
Gunnar Korstad
Erville Alderson
Johan Garme
Louis Jean Heydt
Karl Arnesen
George Macready
Schoolteacher
Arthur Margetson
German Colonel
Lloyd Bridges
Young German Soldier (uncredited)
Ann Carter
Solveig Toresen (uncredited)
Eddie Hall
German Soldier at the Sound Detector (uncredited)