The film is based on the true story of Special Operations Executive French-born agent Odette Sansom, who was captured by the Germans in 1943, condemned to death and sent to Ravensbrück concentration camp to be executed. However, against all odds she survived the war and testified against the prison guards at the Hamburg Ravensbrück Trials. She was awarded the George Cross in 1946; the first woman ever to receive the award, and the only woman who has been awarded it while still alive. (From Wikipedia, licensed under CC-BY-SA)
Anna Neagle
as Odette
Trevor Howard
as Captain Peter Churchill
Marius Goring
as Colonel Henri
Peter Ustinov
as Lt. Alex Rabinovich
Bernard Lee
as Jack
Maurice Buckmaster
as Himself
Alfred Schieske
as Camp Commandant
Gilles Quéant
as Jacques (as Gilles Queant)
Marianne Walla
as S.S. Wardress
Fritz Wendhausen
as Colonel (as F.R. Wendhousen)
Wolf Frees
as Major (uncredited)
Liselotte Goettinger
as German POW Camp Officer (uncredited)