Mine was a minotaur gladiator turned monster hunter (ua fighter subclass). His name was Daniel Notmonster and he'd been called monster so much during his days in the arena that he internalized a hatred of monstrosities. He was driven to prove he wasn't a monster by killing any he came across. He would also collect a bone from each monstrosity killed to scrimshaw a scene of the battle to kill it.

Silver Dragonborn Ancients Barbarian - I wanted to try a tanky build again, after not liking my attempt with paladin. He was Con primary, Str secondary, using a Warhammer and shield, and I was excited to see how the path of the ancients intersected with things like shield Master or sentinel. He was from a tribe of remnant Dragonborn after Abeir split back off. His tribe used to rely on shamans that communicated with their ancestors, but the last one had passed in his grandfather before he was identified as a new shaman. His sister died in a horrible accident, and his communication with her spirit was how he was identified. No one in the tribe knew how to help with his gift, so he went out into the world, accompanied by the spirit of his sister, to see what he could learn. His rage manifested as an icy white cloud rolling over him and falling to the ground, slowly revealing the spirits that accompanied him. I planned for him to notice and get to know more and more of his ancestors' spirits as he got more powerful - including his grandfather, a taciturn half-dragon, and a happy-go-lucky silver dragon. Unfortunately, I had to bow out of the campaign just as we hit level 3, so I never got to experience any of it. ☹️

Haven't gotten to play either of these yet, but I might someday.

1. Aberrant Mind sorcerer, race tbd. Basically, was an eldritch abomination who got bored, and turned itself into a mortal for a change of pace. We're talking "Had 30 Int and Wis" levels of abomination. So now it's stuck in a limited mortal form with all this knowledge, and no ability to use it. Can't even pronounce its own name anymore.

2. Incubus/succubus (reflavored tiefling) paladin of redemption. Nommed on the wrong soul and got purified, and now trying to atone for their past misdeeds. They're virtually starving themselves, which is why they're using a tiefling statblock instead of the normal one, only having the ability to switch sex, and the draining kiss that they never use save to keep themselves alive with a consenting travelling partner.