High Quality Content by WIKIPEDIA articles! Rocksteady and Bebop are fictional characters in the 1987 Teenage Mutant Ninja Turtles cartoon series and the Archie TMNT Adventures comics as well as most of the classic TMNT video games. They follow the orders of series villain The Shredder, leader of the Foot Clan. Their names are both from genres of music: bebop is a style of jazz; while rocksteady is a Jamaican music style, a precursor to reggae.