Constantine is the evil frog from Muppets Most Wanted.
Constantine is the main antagonist of the film. He plans to steal the Crown Jewels of England with help from his #2, Dominic Badguy.
In the film, Constantine is trapped in a prison cell in Russia. However, he is somehow able to break free with pre-planned explosives and uses his martial arts to his expertise to escape. Then, as a wandering, shadowy figure, he puts a fake mole on Kermit the Frog's cheek by slapping it on the exact spot his would be, framing Kermit and putting him behind bars.
Constantine on the other hand brought green makeup to cover up his mole so no one would suspect him, and make the Muppets (except Animal) believe he is Kermit.
He played Scar in The Muppet King
He played Evil Version of BB Robot in Deadly Friend (Nikkdisneylover8390's Animal Style)
He played Elton in Front Row Orinoco
He played Caterpillar in Jasmine In Fantasyland
He played Smitty the Bully in Lumpy a.k.a Dumbo
He played Abis Mal in Mickeyladdin 2: The Return of Peteafar
He played Sir Hiss in Mickey Hood
He played Ashcan in Homeward Bound 2 Lost in the City (Disney and Sega Version)
He played Robert Callaghan in Big Hero 6 (AbananzerGoode485 Style)
He played Alistair Krei in Big Hero 6 (TheBluesRockz Style)
He played Bruiser in Orinoco Jones
He played Trevor the Rat in Meet the Feebles (NimbusKidsMovies Animal Style)
He played Wart in Winnie 'n' Tigger Rescue Rangers
He played Mr. Tinkles in Muppets and Animals (Cats and Dogs)
He played Agent James Suggs in Orinoco and the Wombles 4: The Road Womble
He played Gallaxhar in Animals vs Muppets
In Cats Most Wanted, he is played by Macavity