Teenagers stumble across a prehistoric caveman, who goes on a rampage.
| Actor | Role |
|---|---|
 Arch Hall Jr.Tom Nelson | Tom Nelson |
 Richard KielEegah | Eegah |
| MMarilyn ManningRoxy Miller | Roxy Miller |
 Arch Hall Sr.Robert Miller | Robert Miller |
| LLloyd WilliamsMr. Kruger - Helicopter Pilot (as William Lloyd) | Mr. Kruger - Helicopter Pilot (as William Lloyd) |
| BBob DavisGeorge | George |
| AAddalyn PollittGeorge’s Wife | George’s Wife |
 Ray Dennis StecklerMr. Fishman | Mr. Fishman |
 Carolyn BrandtFishman's Girl (uncredited) | Fishman's Girl (uncredited) |