Caveman Charlie is a minor character of An Oobi Vacation, and the version of Charlie from the past. He lives in a lush prehistoric forest with Caveman Max. He and Max's life goal is to defeat the feroucious Dave-o-saurus, a monster that eats and destroys everything. He enjoys flinging vegatables at the robot to try and stop it with Caveman Max


He looks just like Charlie, having white eyes and green pupils. He also wears a yellow skins-made cloth over his entire body. The skin has green, cow-like spots.


Caveman Charlie appears in the past of An Oobi Vacation's Charlie's Time Machine, where he meets Oobi and helps defeat the Dave-o-saurus.