The character is a down and dirty New York vigilante, a masked hero who beats the snot out of criminals using athletic equipment and whatever he can get his hands on. He becomes an ally to the four mutated turtles and a scuzzy love interest for intrepid reporter/the turtles' BFF April O'Neil.
Amell, who has impossibly shredded abs and has appeared as Oliver "Green Arrow" Queen on the CW spinoff The Flash, was one of half-a-dozen actors who tested for the Casey Jones role over the weekend. What, other than those abs, allowed Amell to emerge victorious? His chemistry with Megan Fox, according to Variety.
Fox returns as April in the sequel, joined again by Will Arnett as goofy sidekick Vernon Fenwick. It's currently unknown whether any other castmembers from the reboot are back for another round.
Pete Plozsek, Alan Ritchson, Noel Fisher, and Jeremy Howard played the titular turtles who are also teenaged, mutants, and ninjas via performance capture. During post-production, however, Johnny Knoxville was brought in to replace Plozsek as the voice of Leonardo, so we're unsure whether the quartet will return for Teenage Mutant Ninja Turtles 2.
Much of the cast is still a mystery, but the director has definitely changed. David Green, who oversaw last summer's scifi family adventure Earth to Echo, steps in as director, replacing Wrath of the Titans helmer Jonathan Liebesman, the director of the reboot.
Screenwriters Josh Appelbaum and André Nemec are back for the sequel and are even being bumped up to executive producers, joining Platinum Dunes partners Michael Bay, Andrew Form, and Brad Fuller.
When Teenage Mutant Ninja Turtles opened bigger than anticipated in August, Paramount immediately announced a sequel, staking a claim to a June 3, 2016 release date before the weekend was even over. Though some material has already been shot, production kicks off in earnest next month, during Amell's annual hiatus from Arrow.