I find myself more interested in some of the 2nd tier characters than Rue, and Jules who are only interesting half the time.

Nate as an interesting as fuck character. The first ep you just assume he's some amped up asshole meathead, which he is but he has so many weird ass layers its fascinating.

I'm not sure what Fez's out is here. With the blood on the money, Mouse now knows he jacked it, and while he might respect that for a minute, its not gonna be exactly hard to put together when he sees what happens to his supplier. I'm not sure what keeping that open ended was supposed to mean

Lexi is the Franklin from Peanuts character of the show. She doesn't do much but she seems like the only kid who doesn't seem like a psychological dumpster fire.