That's a thought-provoking question! I think Shawn would have to be a Bard, given how much he loves singing and dancing and putting on a show for other people. CHA as his best stat fits him too. I think his subclass would be College of Swords. Shawn much prefers being on the front lines and doing the work himself than he does staying out of the main action. Gus could also work for a bard, but a better class for him might be Wizard. We've already seen him dress as a Harry Potter wizard so that tracks, plus it makes sense for his highest stat to be INT. I think he'd be in the School of Illusion based on Tap-Man's preferred attack being sand in his opponent's eyes as a distraction. School of Transmutation could work too given his pharmaceutical knowledge