Hey, hey. I have Sam Winchester, so we should discuss!
I have not seen S8 or 9. I had cable box issues at the beginning of 8, and by the time I got it fixed I was like, eh, I'll wait for the DVD, and that just sort of never happened and next thing you know I'm two seasons behind! Ah well. Maybe I'll catch up someday.
I've got Sammy at the beginning of S7, where he's just starting to have awareness of Lucifer. Not sure what direction that will take in game, but...it could definitely be interesting!