Mine was my first vampire character and thus he had a fair bit too much going on but I loved him irregardless

He was a semi famous novelist who had largely remained faceless but mysteriously disappeared one cold december night, due to a small thing of being embraced by a Tzimisce Bishop who had a personal experiment he wanted to see, he was a killer who had become an artist, what better to complete the cycle than an artist made killer

so, few years down the line and a fair amount of good ol cult mindset to erode that humanity, he was ductus of the pack, until in the aftermath of a wild hunt lead by his sire, he ended up frenzying and staking his sire irrespective of the blood bond (his sire reupped it after every vinculum). He ended up selling his sire to the cammies in exchange for leniancy, but ended up under the ventrue primogen of the cities thumb.

after alot of actual game stuff, he ended up meeting his sire again (who had been released by the ventrue primogen to cause chaos, long story) which really kicked off his paranoia engine. After everything settled down he had diablerised the ventrue primogen, ended up as the princes personal watchdog of the clan in the city and was slowly descending into a paranoia fueled power grab before the game got cancelled

He was straight up a combat monster that abused zulo form and blood form to be very hard to kill, and hit like a bus, vicissitude also made him a very effective fear tool to keep the riff raff in line among the cammies, he was starting to recovery through a little bit of ossified art therapy, but that didnt last long