Teenage Mutant Ninja Turtles (2012 TV series, season 2)
The second season of "Teenage Mutant Ninja Turtles" aired on Nickelodeon from October 12, 2013, to September 26, 2014. Production. On October 2, 2012, Nickelodeon ordered a second season of "Teenage Mutant Ninja Turtles". Executive producer Ciro Nieli confirmed that Mutagen Man will have a large role in the second season and an hour-long episode featuring the voice actors of the original "TMNT" series (Cam Clarke, Townsend Coleman, Barry Gordon, and Rob Paulsen) in their respective roles for a cameo. Corey Feldman (who was the voice of Donatello from the  first and third entries of the original film series) was confirmed to play the role of Slash. Recurring franchise character Casey Jones was confirmed to appear in the second season of the series, where he is voiced by Josh Peck. Jason Biggs departed the role of Leonardo after the 19th episode of season 2 and was temporarily replaced by Dominic Catrambone. Seth Green assumed the role beginning in season 3. Episodes. <onlyinclude></onlyinclude>