Sam Bass...he's going to stay in the background. Just a controlling presence that Callie can't quite get at.
Different parole officers, yes. They're there to help remind readers that Callie is not exactly an upstanding citizen, but I don't want another continuing character. In fact, Callie's checking in could get mechanical, so maybe I'll have the next one show up at the Bass Agency to see if Callie really is employed there -- as a mail clerk. That might be fun.