Constantine: The World's Most Dangerous Frog, or simply Constantine, is the main antagonist of
the 2014 film Muppets Most Wanted, the sequel to the 2011 film The Muppets. 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 subordinate/pawn, Dominic Badguy, formulated 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.