It's just weird, especially considering his story, that he gets picked for the sexy promotions so often. Most of it feels very "wrong" in a way.
I think that’s because many people love the voice acting. That’s artistic quality, and it counts.
Also many people love such conflicted vampire stories. It feels very close to how a love story in a Vampire: The Masquerade RPG could play out. Down to the blood bond and what happens if the vampire loses too much humanity.
