Rocksteady

Owen Rocksteed aka Rocksteady is an enemy of the Ninja Turtles. He was formerly a Caucasian American thug that worked for Shredder in the Foot Clan alongside with Bebop. He is now a mutant rhinoceros, after being mutated by Baxter Stockman with the Purple Mutagen, who works for Shredder to defeat the Turtles. Rocksteady debuts in Teenage Mutant Ninja Turtles: Out Of The Shadows.

Trivia

 * Rocksteady and Bebop appeared in an early draft of the 2014 film called "The Blue Door" where they were aliens from Dimension X. They didn't make it into the final film due to budget reasons.
 * This is the first live-action appearance of the character.
 * This is also the first time Rocksteady's human form is represented as a bearded redhead, in all his other versions he's a beardless blonde man.
 * According to Bebop his ancestors are from Finland.
 * He is Finnish, since his ancestors are from Finland according to Bebop.
 * He has gears and Celtic crosses tattooed on his left arm.
 * This is the second version of Rocksteady to feature tattoos on his arms, the first being the IDW version.
 * Rocksteady's clothes resembles the 1988 original action figure's outfit, with a black tank top and camo pants.


 * When Casey Jones is looking at Rocksteady's rap sheet under where it says "aliases", it says Ivan Steranko. This is a reference to his 2012 TV series incarnation.
 * According to his file, his birthday is March 28, 1976.
 * According to his file, he was captured by the police on August 8, 2014, which coincidentally is also the release date of the TMNT 2014 film.
 * His best friend is Bebop.