Well, if we're meant to come up with how these characters think of one another, I suppose I'll get us started. Besides, I need to actually read all the character sheets. :3
Clinton: I imagine Sam probably gets along with Clinton, and I'm not just saying that because he's the GM's character. :3 I think she's absolutely walked by him doing pullups in the Division's gym for the third time that day, and told him he should relax. Sam has almost certainly offered him a pull on a a marijuana vape pen (she has a selection to choose from) to that end. I feel like they might have a standing sparring date, where the loser buys lunch, and the result goes back and forth. She likely helps to take care of the Oracle in Clinton's care, on occasion.
Jason: Sam has definitely gone drinking with Jason, and probably (intentionally or not) tried to pick up the same person, at the same bar, at the same time. I feel like they may very well be social beyond the level of 'work friends,' but that Sam is often telling him that he needs to stop trying to be everything to everyone, and be something for himself. I also think Sam's had to come 'rescue' him from one of his bad decisions - something for which she is never judgmental, only supportive and with gentle suggestions on how to make the next time less stupid.
November: This probably isn't a surprise, but Samara is absolutely not afraid of November. She's impressed with his physical power and capability - who wouldn't be - but doesn't find a lot to be worried about otherwise. I suspect November keeps himself apart from the predominantly "human-ish" rest of the Division, and I think Sam's generally content to leave that well enough alone - save that, at random, she'll sneak cat treats, catnip toys, or a CD with a song about the month of November (including several covers of November Rain) into his locker. Whether or not November knows it's Sam doing it is something I'm not going to comment on. I feel like Sam has won a sparring contest once with November the entire time they've known one another, something she is smug about to exaggerated, comic effect.
Wendi/Wendigo: Sam's probably intrigued by Wendi, and likely takes time to try and calm her down a little bit, to get her a little more comfortable with the modern world. I'm guessing that this probably includes invitations to sit down and have tea and biscuits, and, more to Sam's own amusement than anything else, to read Wendi faerie stories from human writers. She may even be trying to teach Wendi how to read. None of this is to get Wendigo to be a 'good little human,' just to be less scared and edgy about what's going on with the Division. I think it'd be fun of Wendi were to try teaching Sam the longbow (Sam's only ever used crossbows), if Wendi would be interested in that.
Other notes: I don't care if anyone decides they want to know about Sam's long, strange career with the Division, or if they want to know about her relationship with Death. It isn't a secret, although I suspect she probably only really wants to talk about it with people who are at least 'work friends,' and, of course, other members of the group we're all part of in the story. In other words, if you want your character to know, knock yourself out. I do, however, think it's fairly unlikely she's slept with any of the other characters to this point. Gone on a date, though, maybe. Had drinks, certainly. Exchanged good books? Most definitely.