T-Bone is a Tasmanian devil who first appears in the Season 1 episode "Tazzy Chris". When he was young, he would climb trees to sniff out carcasses like any other young devil. The Kratt brothers saved his mom from becoming one of Zach Varmitech's robot security guards.
T-Bone was captured by the villains in "A Creature Christmas" as a part of their plan to use baby animals as Christmas tree decorations for their shopping mall. He, along with the rest of the animal friends, were rescued by the Wild Kratts and celebrated Christmas in the Tortuga before being returned home.
He made a return in "Creepy Creatures!", where he is seen as a fully grown Tasmanian devil. The villains captured and enlarged him with the Miniaturizer to use as an attraction for Donita's scary animal runway, but he was rescued and brought back to normal size by the Wild Kratts.