Constantine is the main antagonist of the 2014 film Muppets Most Wanted, which is the sequel to the 2011 film The Muppets. He appears to be the evil doppelganger as well as the evil counterpart of the iconic Muppet, Kermit the Frog, who is claimed to be the Number One criminal of the world. He and his pawn Dominic Badguy have an evil plot to steal an enormous diamond. He resembles Kermit the Frog, aside from the fact that a black beauty mark is depicted on his right cheek and the points on his collar are shorter. He is voiced by Matt Vogel.