Most of the recent strips star Matt 'n Pete, the Li'l Sociopaths. Here's the cast:
Matt, aka Ezrael: The guy in the hockey mask. Scholar and bon vivant. Likes include Superman and smiting the wicked. Dislikes include humans and other carbon-based life forms. Not overly fond of clowns.
Pete, aka deucepm: The dude in the tiki mask. Renaissance geek. Harbors a deep, unnatural lust for Willow Rosenberg. Do not give him sharp objects.