Holy shit. I get to talk abt kate AND vee? you spoil me <3
So, first, introductions: Katherynne Sheffeld, or Kate, is an eladrin elf coastal druid. Vee is a changeling trickster cleric, recently turned dhampir. NOW ONTO SOME COMPARING.
Ok so they both have a found family thing going on. Hannah is Kate's older sister, and also a random human sailor she met at the port when she was like 12. Rye is Vee's "sworn enemy" and closest person. Hannah and Rye are both redheads which is a funny coincidence. Also, both Kate and Vee are terrified of their respective person ever leaving them. This may have come up in both campaigns. More than once.
Even aside from their closest person, both of them are very attached to some people in their parties. Vee cares a lot for Dominica (our rogue) and has a deep respect for Ceridwen (our paladin) (Which is wild bc it's hard to get Vee to respect anyone at any given point.) On Kate's side, she loves Valoran and Liz a lot (our fighter and rogue!) (fun fact, Valoran and Ceridwen are played by the same person! i guess there's just something abt taliesin pc's?). They both care for everyone else in their parties too, these are just the people they are closer to.
They are both healers with great capability for offense. Both druids and clerics can be beasts if you know how to play them. But they both focus on healing when its needed, and they are the parties revivify diamond carrier lmao. They also both have a big fear of failing at their job, and someone dying because they weren't fast enough.
They also both have very long lifespans, and suffer because of it. Kate, as an elf druid, will live up to around 7000 years, and will get to see all of her friends die. Vee, recently turned into a vampire, is looking into an equally lonely future, now functionally immortal. She will get to see all her little siblings and Rye die, but at least she'll have the company of Ceri and Thymmy, the other dhampirs in the group (There is a lot of them lmao)
Kate is a way more cheerful person than Vee. She is very emotional, and wears those emotions on her sleeve. And on her face, too! As an eladrin elf, her form changes with her emotions, cycling trough the 4 seasons. On the other side, Vee is a more reserved person, and outright mean at times. He's doesn't care too much for interacting with other people, and really only gets comfortable after knowing someone for a while. He is perfectly content with his small circle of friends, thank you very much.
I think Kate also has adventuring in her soul. Even after her campaign ended, she wanted nothing but to keep sailing the seas. Vee doesn't enjoy stopping for too long, but mostly because it doesn't feel realistic to her. Living a quiet, peaceful life with the people he loves is the dream. However, if those people prefer moving around, she doesn't mind it too much. Just as long as she has somewhere to return to.
When it comes to aesthetics, these two are Very Different. Kate does change how she dresses relatively often, but she tends to stick to a similar sillhouette (her summer clothes being an exemption of this.) She likes "lolita" dresses, and lots of jewelry. Vee, on the other side, likes dressing formal, but sticks to a monotone palette. After recently ditching her old cleric robes, she's mostly been dressing in nice dress pants, short sleeved button ups, and pinstripe vests. He can appreciate a skirt once in a while, but it's usually a long, straight one, without a lot of bulk.
But i think this post is long enough, and those are the main things i can think about right now anyways!