T' Challa, better known as Black Panther, is a Marvel character who stars in the movie of the same name. He was first referenced in the Season Twenty-Two episode, "Dead Kids", but first physically appears in the Season Twenty-Three episode, "Band in China".
In "Dead Kids", Cartman explains to Tolkien about some rumors about him saying that the movie, Black Panther was a terrible movie. He claims that Black Panther was a great movie and that he is not a racist. Tolkien admits that he never actually saw Black Panther. Cartman is surprised at this and, later on, he talks to Butters that he suspects Tolkien for 'manipulating' his test grades. He reveals to him that he actually does not like Black Panther and thinks that Tolkien had everyone fooled that he did not watch Black Panther.
Cartman asks Nichole if Tolkien brought her to see Black Panther and she replies that she knows nothing of it. Cartman refuses to accept the fact that she genuinely did not watch Black Panther with Tolkien and keeps on interrogating her. Cartman arrives at the Black residence and asks Linda and Steve Black if Tolkien watched Black Panther with them. Steve replies that he and Linda watched it on the night of their date. They are going to let Tolkien watch it soon. They cannot allow Tolkien to watch it alone as it is PG-13. Tolkien kicks him out of the house. The next day, Cartman confronts Tolkien in the boys' bathroom and admits he did not like Black Panther and Tolkien tells Cartman he really did not see Black Panther. Cartman threatens to tell his parents that he went to the theater to watch it without permission. Tolkien reveals he does not actually care about Cartman's criticism about the movie. Cartman is unconvinced and feels Tolkien also dislikes the movie. He tells Tolkien he does not mind him disliking the movie, but just that he should not 'manipulate' and make Cartman fail his test again.
Later on, Black Panther was one of the Disney, Marvel, and Star Wars characters getting scolded by Mickey Mouse for criticizing the Chinese Government and being critical of Chinese politics.