The story of an idle rich boy who joins the US Army's Rainbow Division and is sent to France to fight in World War I, becomes friends with two working class men, experiences the horrors of trench warfare, and finds love with a French girl.
| Actor | Role |
|---|---|
 John GilbertJames 'Jim' Apperson | James 'Jim' Apperson |
 Renée AdoréeMelisande | Melisande |
 Hobart BosworthMr. Apperson | Mr. Apperson |
 Claire McDowellMrs. Apperson | Mrs. Apperson |
 Claire AdamsJustyn Reed | Justyn Reed |
 Robert OberHarry Apperson | Harry Apperson |
 Tom O'BrienMichael Olysius 'Bull' O'Hara | Michael Olysius 'Bull' O'Hara |
 Karl Dane'Slim' Jensen | 'Slim' Jensen |
 Rosita MarstiniMelisande's Mother | Melisande's Mother |
 Julanne JohnstonJustine Devereux (uncredited) | Justine Devereux (uncredited) |
 Kathleen KeyMiss Apperson (uncredited) | Miss Apperson (uncredited) |
| CCarl RoupDoughboy (uncredited) | Doughboy (uncredited) |
| AArthur H. AllenDying German | Dying German |
 George BerangerPatriotic Letter Reader | Patriotic Letter Reader |
 Harry CrockerDoughboy | Doughboy |
 Dan MasonSecond Patriotic Letter Reader | Second Patriotic Letter Reader |
| CCarl VossOfficer | Officer |