Cassimara Raventhorn, Dhampir

Cassimara is the archer of our team, with an unusual combination of classes (ranger/rogue/inquisitor, I think). She hunts for undead with our team. What makes her unusual is that she's a dhampir, i.e. her dad was a vampire. Our team cleric is an "expert" undead killer who didn't notice this until she revealed it to us like three sessions into the game. It makes for an unusual team member since our cleric is pretty prone to accidentally hurting her with her energy channels, and always has to give her a heads up before he starts blasting things.

For healing, the first part of our adventure was pretty useful. We got these things called haunt siphons that are used to trap ghosts (think the traps for Ghostbusters). So we've got these bottles filled with unfortunate souls that she sometimes uncorks when she needs a little pick-me-up. She's never shown the whole "bloodlust" thing that dhampir are occasionally supposed to have, but I guess eating souls balances it out.

The closest thing to a dhampir in D&D is the Half-Vampire template, which is still a little bit annoying because of level adjustment things. D&D is rife with templates. I think Dragon magazine had a special issue dedicated to various templates for the offspring of the living and dead. Paizo did the Dhampir race, a much less powerful version of the Half-Vampire, so that you can play them from the get-go.