I'll start off with some character dynamics from my current series, Galactiquest.
Leon and Emil
These two's initial dynamic is clear right from Episode 1, so I won't bother putting it under a spoiler. Leon is thoroughly dazzled by Emil and takes all of his attempts to be cool at face value in a way that no one else does. Even Emil is a little caught off guard by this. He loves the attention though, and makes sure to repay the favor. It's hard for the two of them to interact without one of them complimenting the other. They're really each other's hypemen.
Captain Galhardo and Emil
Captain Galhardo is very by-the-books and Emil is very much not. They're close in age, but the captain acts more like a stern father to Emil than an older brother. He's highly competent in all things related to piloting, professionalism, and spaceship maintanace. Emil lacks pretty much all of that. He resigned himself to socializing with and entertaining his crewmates while his brother handled all of the important stuff.
Mild Spoilers
It turns out that when you're living with them for months on end, that's actually a very important skill! They're a great team, but their flaws make them disastrous apart. Their contrast also just makes them really funny together. For example, Emil is much more animated when expressing himself, but his brother is very still. I could get into their upbringing and how deeply it affected them, but that gets into spoiler territory. Plus, we'd be here all day.
Jun and Aiden
Most of the other crew members are offput by Aiden's gruff, grumpy demeanor. Not Jun. Whatever the others think they're dealing with, Jun dealt with slightly worse. Everyone else thinks Jun is so cool and so heroic. Aiden thinks Jun is a dweeb. Sort of. They used to be roommates. Two people from two different walks of life, they miraculously became best friends.
Mild Spoilers
Jun prefers to work from inside of the law while Aiden would rather work towards dismantling it, but they have similar goals. Both can switch sides when it's necessary. Being the eldest on the ship, they can see through each other in a way the others can't. They're really goofy together. I love writing them.
tl;dr:
Jun: "Bro. Bro. Stop talking about how much you hate hierarchies. You're, like, scaring away the authority figures."
Aiden: "Good. "
Mia and Aiden
Honestly, I didn't plan for these two to interact much, but every time they do, it leads to some of the funniest exchanges. Aiden has little regard for social norms or authority, and Mia would rather keep her head down and make things go as smoothly as possible. The only thing they have in common is that they mostly want to be left alone. It's fun getting mileage out of that.
Mia and Roxie
Mild Spoilers
Despite Mia being younger, Roxie sees her as the more mature one most of the time. But sometimes, Roxie can make her smile and laugh in a way that makes her feel like a cool senpai (I can't think of any other words right now, and Roxie would call herself a senpai.) She feels honored to get the privilege of peeking into that quiet shell. For Mia, Roxie is a bright spot in her life. I could go further into what that means, but that'd be spoiling some recent episodes.
Jun and Roxie
Roxie has a flair for the dramatic, and hams things up to a point where no one really knows what she's talking about. Neither does Jun, but they play along, completely deadpan. They adore each other. Best friends, might as well have adopted each other.
Leon and ...
Moderate Spoilers
Leon and ???
Leon's kind of weird in that his goals are mostly met within the first few chapters. He wants to get to know some of his crew members better and visit specific points in space (like the Moon), but otherwise, he got exactly what he wanted from the start. Unlike the others, he doesn't really have personal issues, either. Or so it seems. He thought he left those all behind on Earth, but they end up finding a way of coming back to him. Maybe it never really went away.
I'd love to talk about these two more in detail, but it gets into current and future episodes.
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