Heh, I just killed Bashiok, Diablo 3's community manager. Well, not the literal person but a monster in game bearing his name. Here are a couple of screenshots. My Monk encountered him on Nightmare difficulty in Act 2.
If you didn't know, there's a chance you will encounter rare spawns with the names of Diablo 3 developers and community members.
In this case he was a Fallen Shaman and had the tag "Death is not the end". I'm not sure if he can spawn as other types of monster but from my vague understanding, I don't think so. Either way, the fight itself was easy.
Have you killed any Blizzard employees lately?