Leatherhead

Leatherhead Biographical information Home Earth, Sewers of New York City Nicknames LH Croc man (by Raphael) Weapon of choice Teeth & tail Affiliation Ninja Turtles, Utroms Physical description Species Mutant Saltwater Crocodile Gender Male Height 7 feet Weight 300 lbs. Eye color Yellow Hair color None

Leatherhead's personality is a combination of a docile scientist and inventor with the savage ferocity of a crocodile. This combination makes him dangerous but valuable to the turtles. When he first met the turtles he assumed they were a threat and his ferocious instincts led him to attack them but once they offered a truce he calmed down. Before Agent Bishop made his bestial rage worse, he could control it to a certain extent. Though he has since gained better control of his rage. Like Raphael he shows remorse for his ferocious behavior and understands that his ferocity makes him dangerous. He is also fiercely loyal to his friends.

Leatherhead first made a shadowed cameo in Secret Origins, Part 3 escaping from the TCRI building during the raid. He was first seen in the episode "What a Croc", where he was helping Baxter Stockman create a new body, while working on a Transmat device so he could rejoin the Utroms and had built the Turtlebot. But Stockman only wanted to take advantage of him. Leatherhead eventually met and befriended Michelangelo who found him living in the Turtles' old old lair. After a battle between the Turtles and Stockman, unfortunately for Stockman, the doctor accidentally allowed Leatherhead to know he once worked for the Shredder; since the Utroms had adopted and told him about the Shredder, Leatherhead immediately got angry and grabbed Stockman. Eventually, Stockman bombed the location which caused a cave-in, and despite Michelangelo's pleas for him to follow them Leatherhead seemingly sacrificed himself to save the Turtles. Leatherhead was originally an exotic pet who got flushed down to the sewers, somehow ending up in an Utrom base. After being exposed to the same mutagen that would eventually change the Turtles, Leatherhead became a massive, humanoid crocodile. With intelligence mirroring that of Donatello's, he lived with the Utroms whom he considered his family. He was accidentally left behind during the Utrom Shredder's attack, which forced the Utroms to flee Earth. Leatherhead had in fact survived the ordeal because of his tough skin, but had been taken captive by Agent Bishop and abused as a guinea pig for genetic experiments in his lab - an event that inflicted Leatherhead with severe emotional wounds. After being freed by the Turtles, he helped his old friends escape, and for a time lived in the Turtles' lair. However, Leatherhead's fits of feral rage, already dangerous, were made more so by Bishop's experimentation. While in an unconscious fit of anger, Leatherhead struck Michelangelo and woke up believing that he had killed his friend.

Leatherhead was an ally to the Turtles with a scientific mind like Donatello and is often referred to as "LH". Here he is not only intelligent but also well versed in various technical and scientific fields and therefore the Turtles and their friends (including Professor Honeycutt) find not only his giant strength but also his great intelligence helpful