My current character is a barbarian who thinks he is half barbarian, half vampire (he is not). He is ashamed of his cursed blood, and vowes to eraddicate the vampire menace from forgotten realms. He accuses literally everyone of being a vampire and that makes townsfolk get really upset because they too are scared of
Strahd von Zarovich and his vampiric reach.
As far as skills go he is a cleric, but mostly all he does is harmlessly cause the DM trouble when I derail every conversation into a long form debate about weather someone is a vampire or not.