Yelena Belova
Yelena's really on a Totally Normal Person World Tour this week, and she's continuing it right here. Obi-Wan invited her so she'll start out primarily being his problem, the lucky guy. She's going to end up getting a Terminator fish bowl and keeping it all to herself, which is going to go great, and once she's done with it she'd be remiss to NOT go on stage considering she's done her very best thrift store version of Desperately Seeking Susan Madonna (which is surprisingly easy and ends up being sort of scary accurate). If she's most of the way through that drink, she'll take requests for her song choice. It won't be pretty, but she'll do it with a lot of gusto.
Really strong chance that since right now Baymax looks like one of only a few people she actually talked to in her couple of hours on campus before reset that she'll get a little weird trying to figure out a) if he's actually Shang-Chi or she's going crazy and b) if he is does he remember Derleth and if he isn't, why does he look like Shang-Chi then.