Haven't figured out a group yet, and unless K joins one he'd choose to team up with Gnat, the goblin fighter. He'll be a Tiefling and most likely either a paladin or cleric. His character will essentially look like him, just as a demonic goatman thingy with dark blue/indigo skin and large horns.

Edit: K's joining Renart and Alfie's group, so Gnat is free for someone else!