Genre: Animation . Cast: Seth Green, Sean Astin, Greg Cipes . Year: 2015 . Half-Shell Heroes action figure line, the storyline finds the Turtles going back in time to the Jurassic Era, where they encounter friendly dinosaurs from the past and dangerous aliens from the future who have a nefarious plan of their own. However, things get even more complicated when Triceritons, Bebop and Rocksteady show up! .