That’s Doop. That guy. The one that looks like Slimer from Ghostbusters. Doop was created by Peter Milligan and Mike Allred, and debuted in X-Force (1991) #116 as the cameraman for a reality show about a team of mutants. Doop has a mysterious origin and speaks in a language only he can understand (and any reader with access to a DoopSpeak Translator). Doop recently appeared as a behind the scenes force in Jason Aaron’s Wolverine and the X-Men (2011). But now, Doop is front and center in his very own title, written by his creator, Milligan, and drawn by David Lafuente. This is All-New Doop. Doop.
Steven Cohen's 365 Days of Reviews 