WHAT, the guy couldn’t play caveman well enough?

Dash Mihok has been replaced on ABC’s upcoming sitcom, “Cavemen,” based on those now-famous Geico commercials.

Mihok’s being replaced by Sam Huntington, best known for playing Jimmy Olsen on the big screen in “Superman Returns,” according to The Hollywood Reporter – which also reports that ABC will launch “Cavemen” not with the show’s pilot but with another episode. Huntington will play Andy, the kid brother of Joel (Bill English) who comes to Atlanta to visit after ditching his girlfriend.

On the show, a group of cavemen try fitting into modern society, while coping with “cavemen prejudice.”

In the “Cavemen” pilot, Mihok played Jamie, another brother of Joel’s (who, presumably, now disappears from the show).