We are definitely heavy on the Js here! But there's always room for more. ;)
Maizie - Sounds good to me! Maybe they've had a brief interaction at some point in the past, so that when they eventually meet again they'll already know names/etc?
Bunny & Ruth - More hands with the livestock is always welcome! And Ruth's reaction to Bree popping into the hangars will largely depend on how much of an interruption it is, but she's not afraid to tell someone to buzz off if they're in the way. ;)
Kevin - Depending on when Bree and her brother were in the tunnels, Kevin might have been actively using prax at the time. I haven't firmed up the exact time period for when he got clean, but it was probably somewhere around early 2017. High or not, though, he's always been friendlier than your typical ghoul. Once Bree hooked up with the Hellhounds, he'd be a bit more suspicious if they crossed paths again, though.