T.U.F.F. Puppy is an American animated television series created by Butch Hartman for Nickelodeon. It premiered on October 2, 2010, on Nickelodeon along with Planet Sheen and ended on April 4, 2015 on Nicktoons. T.U.F.F. Puppy is Butch Hartman's third animated series for Nickelodeon, after The Fairly OddParents and Danny Phantom. In early 2011, the series was renewed for a second season which premiered on May 13, 2012. The first two seasons consist of 26 episodes and the third season consisted of 8 episodes, for a total of 60 episodes. From October 20, 2013 until April 4, 2015, new episodes of T.U.F.F. Puppy aired on Nicktoons. ... more on Wikipedia