To get the obvious out of the way first, there's a lot of them.
He considers his teammates his friends, his students are also extremely important to him and both of his jobs go hand and hand to him so obviously he's a friend to them as well.
Now a lot of his teammates aren't big story characters, and only one of his students is, but even counting from that group only it's… A lot of characters. I actually loved just about everybody in The Wonderful 101! The only character I didn't like was Wanna because he's a gross fly with a fittingly annoying voice.
Luka is a character most people don't like, which is understandable considering he's bratty and has the same exact voice as Timmy Turner. However, I like Luka!
The scenes with him and his mother actually make me cry, I suppose in a way she's Red and his team's friend. I really like her, even if you only get to meet her as a silent giant fighting robot or maybe because of that.
Red very obviously wanted to keep an eye out on Luka but he didn't underestimate him for being a kid and it makes me very happy when Luka became a official member of the team.
It's pretty upfront that Red was similar to Luka as a child down to Red having the same VA as him as a child and that he sees himself in Luka and believes in him.
I've actually grown somewhat motherly towards Luka because of this.
Plus I've always loved how he's just a mini version of Luka from Bayonetta.
Then there's his main teammates who I all really like!
Blue is just Dante and Joe from Viewtiful Joe mashed together, so of course I liked him a lot. Of the team he's the most vocal about not liking Red being the leader of their mission when he's so new. The dude's a douche but honestly I have a lot in common with him.
Pink is really cute, I liked her a ton, she's really funny and bubbly. Same goes for Green.
Yellow is one of my favorites, he's just a shy giant Russian father. I don't see how anybody could dislike Wonder Yellow.
White and Black I kind of wanted to know more about, but I like them ether way.
I'd hang out with all of them! I love the constant banter they have going on.
Then there's Chewgi and Vorkken
I liked both of them a ton and Red showed a lot of respect for Chewgi. Vorkken was a great rival character and his cheesy voice acting is the best thing ever. I'd love to chill with Vorkken.
Immorta is great, I'd love to hang out with her. We have a bit in common and I'd love to bug her to teach me how to knit. I'm trying to keep this post short now because seriously, he has a lot of friends.
I think he'd like my friends! Maybe think we're kind of loud, but he seems pretty open to all kinds of people for obvious reasons and I doubt anybody I know can be weirder than some of his teammates.