A caveman in a modern-day setting. He's usally either an unfrozen Human Popsicle or someone who got here through Time Travel. If he's capable of speech, expect Hulk Speak; if not, grunting is the way to go. Occasionally, this is subverted by having the caveman speak in interesting prose, usually with an upper-class English accent.
If they are able to fit in, then it is Like a Duck Takes to Water (which was previously known as "Unfrozen Caveman Lawyer", thanks to the SNL example below).
Note that the redirect title, "Freezetta Man", is a play on Frazetta Man, which is a certain type of caveman.
Contemporary Caveman has been suggested to play 1 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.