Justin (2012 TV series)

Justin is a grotesque multi-species "supermutant" that appears in the 2012 TV series episode The Alien Agenda.

Description
Justin was created by accident when the Turtles and Karai broke into the Kraang's main lab for the Worldwide Genome Project. The Kraang had collected DNA samples from every animal on Earth, and when Karai pressed a button on a giant tank of mutagen, the samples poured into it. The creature that resulted was a bizarre combination of DNA from various animals including jellyfish, beetle, octopus, viper and house cat. Michelangelo settled on calling it "Justin" when he couldn't think of a proper nickname for the confusing creature.

Justin went on a rampage almost as soon as it was born. It made short work of the Kraang-droids and the Turtles, but it was finally killed by Leonardo via electrocution.

Trivia

 * When trying to name the super mutant, writer Kenny Byerly decided to call him "Justin" after one of the production assistants, Justin Nix.