 Cedric HardwickeCol. Lanser | Col. Lanser |
 Henry TraversMayor Orden | Mayor Orden |
 Lee J. CobbDr. Albert Winter | Dr. Albert Winter |
 Dorris BowdonMolly Morden | Molly Morden |
 Margaret WycherlyMme. Sarah Orden | Mme. Sarah Orden |
 Peter van EyckLt. Tonder | Lt. Tonder |
 William Post Jr.Alex Morden | Alex Morden |
 Henry RowlandCapt. Loft | Capt. Loft |
 E.J. BallantineGeorge Corell | George Corell |
| RRichard AbbottVillager (uncredited) | Villager (uncredited) |
| LLouis V. ArcoSchumann (uncredited) | Schumann (uncredited) |
 Georgia BackusVillager (uncredited) | Villager (uncredited) |
 John BannerLt. Prackle (uncredited) | Lt. Prackle (uncredited) |
 Trevor BardetteKnute Pierson (Foreman) (uncredited) | Knute Pierson (Foreman) (uncredited) |
 Hank BellVillager (uncredited) | Villager (uncredited) |
 John BleiferMiner (uncredited) | Miner (uncredited) |
 Sven Hugo BorgSergeant (uncredited) | Sergeant (uncredited) |
| TTom BrownBoy (uncredited) | Boy (uncredited) |
| FFrederic BrunnGerman Soldier (uncredited) | German Soldier (uncredited) |
| RRicardo Lord CezonBoy (uncredited) | Boy (uncredited) |
 Harry CordingMiner (uncredited) | Miner (uncredited) |
 Jeff CoreyAlbert (uncredited) | Albert (uncredited) |
| AAlbert D'ArnoGerman Soldier (uncredited) | German Soldier (uncredited) |
| JJoseph EggentonVillager (uncredited) | Villager (uncredited) |
 Edith EvansonLudwig's Wife (uncredited) | Ludwig's Wife (uncredited) |
| MMonica FoltsGirl (uncredited) | Girl (uncredited) |
| FFrederick GiermannSergeant (uncredited) | Sergeant (uncredited) |
 Gibson GowlandVillager (uncredited) | Villager (uncredited) |
| LLudwig HardtElderly Man (uncredited) | Elderly Man (uncredited) |
| EErnst HauessermannMoeller (uncredited) | Moeller (uncredited) |
