Cesar Millan is hired by Mrs. Cartman in the episode "Tsst" to help improve Cartman's behavior. Unlike assorted nannies who were hired to discipline Cartman (all of whom were destroyed mentally or emotionally by him), Cesar's approach proves to be the most successful, as he treats Cartman like a dog, rather than a human being. Mrs. Cartman becomes so grateful for his help that she begins propositioning Cesar for a deeper relationship. When Cesar reminds her that he is merely there to teach her to control Cartman and then leaves, she back peddles on the training, causing Cartman to regress into his evil tendencies. He was not shown in the celebrity army in "200" and "201".