Mattimus' OOC - 3rd Time's the Charm
Thor - of course, and very proud of his Julie Power Special sweater which haven't hunted down pictures of. I'm always horrible at googling 'this is what they wore' stuff. All the drinks, all the games, all the fun.
Brigitte will be Reinhardt's shadow, assuming he's there. She'll be doing her best to look out for him, meet and greet friends, and generally be super pleasant. She made her own sweater, too!
Scott - will be Scott. He will admire the planning involved, of course, but still still enjoy the chaos a bit too. He'll routinely pester his sister and Reyes - probably a good place to knock out his like 20 planned mistletoe encounters?