Bob is a main protagonist of the stop motion animation segment Prometheus and Bob, seen on the Nickelodeon animated sketch comedy series KaBlam!. He is a caveman that gets educated on how to live in modern society by an alien named Prometheus. Bob used to be full of hair but now has none due to a laser incident in the first tape Prometheus recorded of him ("Tape 1").
Bob is usually depicted as being scared by Prometheus's lessons due to them either being too vague to make full sense for him (examples include watching television, celebrating a birthday and doing laundry) or Prometheus's way of teaching being too forceful for a slow learner like him. A simple monkey often interrupting their lessons with pranks doesn't help, either.
Despite this, Bob is usually an optimist and he can understand Prometheus's knowledge well (like learning how to use a spear) if left alone.
Trivia[]
In "Tape 677: Evolution Chamber" when Bob got evolved into his modern form, he resembles Prometheus in his appearance (sans his skin color), hinting at being related to Prometheus's species.