Hey Mary, it's Jeanna! I'm on hiatus right now but I'll tell you who I have.
Finn: Obviously Poe will know him and he's post TLJ so they're on the same page. Luke Skywalker: He's the canon version but he's 30, has been here three years and is on the SadTech Board. He won't know Poe but he knows Rey and has been training her and he knows Finn too naturally. Cassian Andor: Obviously not dead, has been here since around Thanksgiving. Won't know Poe but they should be friends. Christan Ozera: Vampire Academy, is in a serious realtionship with Lissa. I don't know exactly what kind of job he's going to do yet. Christine Chaptel: Who is my only female and I need to think about fixing that. She's a nurse practitioner in Medical. Oliver Queen: Same Oliver but he's from near the end of Season Three. Thea's brother and they're now the same age so that's fun.