Englishman Mr. Howard is on a fishing holiday in eastern France when the Germans invade in 1940. Setting off to try and get back home he is persuaded to take along the two Cavanaugh children, and as his journey progresses his family keeps growing in size. Once in German-occupied northern France a new problem arises — the risk of being heard speaking English.
| Actor | Role |
|---|---|
 Monty WoolleyJohn Sidney Howard | John Sidney Howard |
 Roddy McDowallRonnie Cavanaugh | Ronnie Cavanaugh |
 Anne BaxterNicole Rougeron | Nicole Rougeron |
 Otto PremingerMajor Diessen | Major Diessen |
 J. Carrol NaishAristide Rougeron | Aristide Rougeron |
 Lester MatthewsMr. Cavanaugh | Mr. Cavanaugh |
 Jill EsmondMrs. Cavanaugh | Mrs. Cavanaugh |
 Ferike BorosMadame | Madame |
 Peggy Ann GarnerSheila Cavanaugh | Sheila Cavanaugh |
| MMerrill RodinWillem | Willem |
| MMaurice TauzinPierre | Pierre |
| FFleurette ZamaRose | Rose |
 William EdmundsFrenchman | Frenchman |
 Marcel DalioFocquet | Focquet |
 Marcelle CordayMadame Bonne | Madame Bonne |
 Odette MyrtilMadame Rougeron | Madame Rougeron |
 Jean Del ValRailroad Official | Railroad Official |
 Rudolph AndersLieutenant | Lieutenant |
 Henry RowlandMilitary Policeman | Military Policeman |
 Helmut DantineAide | Aide |
 George DavisBarman | Barman |