United States Marine Corps Captain "Happy" Smith and Gunnery Sergeant Wilmer lead a squadron of Marines in a search of a party of American tourists lost in a Central America banana republic jungle.
| Actor | Role |
|---|---|
 Monte BlueHappy Smith | Happy Smith |
 Guinn 'Big Boy' WilliamsGunnery Sergeant Wilmer | Gunnery Sergeant Wilmer |
 Gladys BrockwellMary Dyer | Mary Dyer |
 Ethlyne ClairInnocencia | Innocencia |
 Lionel BelmoreSeñor Carroles | Señor Carroles |
 Henry B. WalthallBuffalo Bill Ryan | Buffalo Bill Ryan |
 Eddie GribbonPvt. Murphy | Pvt. Murphy |
 Pat HartiganSpike Connelly | Spike Connelly |
 John KellyO'Farrell | O'Farrell |
 Otto LedererBugs McGuire | Bugs McGuire |
 William IrvingFritz | Fritz |
 Pat SomersetHendricks | Hendricks |
 Joseph W. GirardMajor | Major |