Rocksteady and Bebop are Shredder's clumsy oafish henchmen. The two were originally members of an unnamed street gang that was on Shredder's side. They were exposed to mutagen after coming into contact with a warthog and a rhino stolen from the zoo. They are known for their incompetence, lack of intelligence and often botch Shredder's plans. "Bebop" is a mutant worthog and "Rocksteady" is a mutant rhinoceros.
- In the Pooh's Adventures, The Masters of Evil's version of Bebop and Rocksteady will be Bowser's murderous traitors: The Iron-Masked Marauder (Rocksteady) and Hal Stewart (Bebop) mutated by Dr. Eggman's experimental mutagen chamber. And will look like the Nickelodeon versions of the two.
- Bebop and Rocksteady will become Code Red's enemies in Code Red meets Teenage Mutant Ninja Turtles Out of the Shadows.
- They are the cats' enimies.