A farmer traps three people in a cave with his pet prehistoric monster.
| Actor | Role |
|---|---|
 Tommy KirkWayne Thomas | Wayne Thomas |
 Shirley BonneLeilla Sterns | Leilla Sterns |
 Bill ThurmanGreely / Monster | Greely / Monster |
 Annabelle WeenickBella | Bella |
 Corveth OusterhouseNorman Sterns | Norman Sterns |