EXCLUSIVE: Nickelodeon has renewed animated series T.U.F.F. Puppy for a third season with a 20-episode order. While not a household name, T.U.F.F. Puppy, featuring the voice of iCarly’s Jerry Trainor, actually ranks as Nickelodeon’s No. 2 animated program with kids 2-11, only behind juggernaut SpongeBob SquarePants. It averages 3.6 million viewers in Live+7. Puppy hails from Butch Hartman, who is also behind another successful Nick toon series, The Fairly OddParents.