Doctor in jungle works on cure for fever.
| Actor | Role |
|---|---|
 Ralph BellamyDr. Paul Hallet | Dr. Paul Hallet |
 Josephine HutchinsonDr. Mary Reynolds | Dr. Mary Reynolds |
 William GarganDr. Jack Murray | Dr. Jack Murray |
 Barbara ReadClaire Saunders | Claire Saunders |
 John 'Dusty' KingDr. Phillip Saunders | Dr. Phillip Saunders |
 Charles StevensTalamu | Talamu |
 Honorable WuMolugi | Molugi |
 Nella WalkerMrs. Carpenter | Mrs. Carpenter |
 Eleanor HansenAnna | Anna |
 Constance MooreSusan | Susan |
| BBrandon BeachParty Guest | Party Guest |
 John DawsonPhotographer | Photographer |
 Jack EganParty Guest | Party Guest |
| AAllen FoxPilot | Pilot |
| BBen LewisReporter (uncredited) | Reporter (uncredited) |
 William LundiganParty Guest | Party Guest |
 Frances RobinsonParty Guest | Party Guest |
 Larry SteersParty Guest | Party Guest |
| MMarilyn StuartParty Guest | Party Guest |
| BBud WolfeParty Guest | Party Guest |