Kaleb was a boy I designed last year for my character design class, in which we had to come up with a secondary character for an existing series or movie. I chose 'Over the Garden Wall' because it's my favorite cartoons.
My story for him was that as a young man he got lost on his way back home from the dessert and he eventually came across The Unknown, but couldn't get out. He never lost hope, and eventually he started to hunt birds to make a set of wings and fly away from that place.