Movie Villains Wiki
It's not easy being mean.
~ Constantine

Constantine is the main antagonist of the 2014 film Muppets Most Wanted, which is the sequel to the film, The Muppets from 2011. He appears to be an evil doppelganger, as well as the evil counterpart of iconic Muppet Kermit the Frog who is claimed to be the "Number One" criminal of the world. He and his partner/pawn, Dominic Badguy, had 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 left cheek.

He is voiced by Matt Vogel.