Mavin (advertised as both Gavin the 3rd and Operator Mikey) is the main antagonist of The Eleven Little Roosters. He plotted alongside Colonel Cockface to eradicate the Rooster Corps, but his plans were thwarted by Ryan Haywood, Agent Moose and the Sex von Shaukel Boyz. Mavin was killed by SSB members Koko, Brüce and Wilhelm via a high-pitched super sonic scream which had placed excessive pressure onto his skull to the point where it exploded.