Going to exosolar with this guy. I'd love a few people to tag along. Maybe a step-mother (she'd only be a few years older than him and a step-sister (age up to you as long as it fits). Not particularly picky about PBs but I have suggestions in my journal and can think of more. One or both would be privy to a dark secret from his past and they'd not have seen him for 20+ years, so that'd be interesting, I think.
Otherwise, I'd love an old crime buddy of his that he runs into now that he's reformed his ways, one that either has as well or wants to nudge him back into the old ways. Charlie Cox would be an obvious choice, but again, not too picky on the PB! Ask me for suggestions if you need. (Cillian Murphy, Michael Fassbender, etc..)
And finally, dying to see an alien or android that can change his (slightly bigoted) ways about not trusting them, having not been close to any in his life. Yay character development!
Anything else you can think of, hit me up! I'm excited to go into this comm and would love to make some connections before I get there.