|Tundra has a hard time getting along with people. He tolerates his multiple sibling robots, and finds comfort in Ursa, sees Dr. Baker as a father figure, and sees a human, Abigail, as a best friend. His left arm is loose and falls off. For a very long time Abigail thought Tundra was a human until his arm fell off and he needed help getting it back in it's socket. He's a bit of a know-it-all and is snarky when it comes to him being right and wrong in an argument.