An old-time cavalry sergeant's resistance to change could cost him his post.
| Actor | Role |
|---|---|
 Wallace BeerySgt. Patrick Aloysius 'Hap' Doan | Sgt. Patrick Aloysius 'Hap' Doan |
 Marjorie MainSusie 'Suz' | Susie 'Suz' |
 Donna ReedSally Hanson | Sally Hanson |
 Lewis StoneCol. Jack Lawton | Col. Jack Lawton |
 Henry O'NeillLt. Col. Harry Seton | Lt. Col. Harry Seton |
 William LundiganJoe 'Joey' Hanson | Joe 'Joey' Hanson |
 Chill WillsSgt. Larry Dillon | Sgt. Larry Dillon |
 George Bancroft'Russ' Russell | 'Russ' Russell |
| JJerome CowanMr. Nichols | Mr. Nichols |
 Guinn 'Big Boy' WilliamsSgt. Krims | Sgt. Krims |
 Jonathan HaleBrigadier-General | Brigadier-General |
 Tom DuganSgt. Strong | Sgt. Strong |
 Roman BohnenMr. Leech | Mr. Leech |
 Arthur SpaceHank | Hank |
 Ray TealSergeant | Sergeant |
| JJimmy SpencerRecruit (uncredited) | Recruit (uncredited) |