It's Cyriak.
Pretty damn awesome. Still, I get kind of irked every time someone doesn't know who that is... but that's just me. Seriously, though, Cyriak is one of the most disturbing animators EVAR. Be warned.
Reviews for "Mouth Face"
Bobert-Rob responds:
Really? There weren't any credits in the video or its comments, so I had no way of knowing. Cool either way, mouthface is awesome. And thanks for looking at it!
Omg
this reminds me of those nova gas zombies from call of duty black ops 0.0