Arrow star Stephen Amell has signed on to play Casey Jones in Paramount's Teenage Mutant Ninja Turtles 2. Producer Andrew Form revealed back in December that they are "trying to fit" the Casey Jones character into the sequel, which will also include beloved villains such as Bebop and Rocksteady. Casey Jones was originally played by Elias Koteas in the 1990 Teenage Mutant Ninja Turtles movie.Variety reports that Stephen Amell tested with a half-dozen other actors over the weekend, but it was his chemistry with Megan Fox, who is returning as April O'Neil, that won him the part.