Finn would be a familiar face to most people in Zion seeing as he's been part of the carnival for 15 and a half years, he's seen a lot of people come and go over those years but still likes that there's a few familiar faces still around.
He has an underwater escape show, not as fancy as Houdini but still gets the people's attention... but what they don't know is that while it looks like he's going to run out of air and drown Finn has a secret - he's a water elemental and can 'breathe' underwater by drawing the oxygen through his skin. Finn also has the ability to manipulate and control water but he rarely does this, though does enjoy making water spheres and other small items.
He's got quite the history and most of it not that nice, if you want to know more look at his bio. Finn has a wagon which he shares with his best friend Riley, though really they're much more than friends but keep it on the down-low (neighboring wagons would definitely know what's going on from the sounds regularly coming from that location) but they don't really care. He is also happy to keep an eye on kids if their parents want some time alone, having lost his wife and baby during childbirth 16 years ago he still has that pain inside him and this is how he gets his paternal fix.
Give me things - friends, enemies and what-have-you.