Eric Theodore Cartman is a fictional character in the American animated television series South Park. One of four main characters, along with Stan Marsh, Kyle Broflovski, and Kenny McCormick, he is generally referred to within the series by his surname. He debuted on television when South Park first aired on August 13, 1997; he had earlier appeared in The Spirit of Christmas shorts created by Trey Parker and Matt Stone in 1992 (Jesus vs. Frosty) and 1995 (Jesus vs. Santa).

Voiced by Trey Parker, Cartman is an obese, immature, spoiled, selfish, manipulative, lazy, foul-mouthed, mean-spirited, sadistic, racist, sexist, anti-semitic, homophobic, xenophobic, sociopathic, narcissistic, and ill-tempered elementary school student living with his unwed mother in the fictional town of South Park, Colorado, where he routinely has extraordinary experiences not typical of conventional small-town life. Despite his many personality flaws, he is also depicted as being highly intelligent, outspoken, cunning and streetwise. He is one of few multilingual characters on the show, and is depicted speaking Spanish, French and German. He tends to make effective use of his capabilities by executing morally appalling—yet highly successful—business ideas.

Adolf Hitler (German: [ˈadɔlf ˈhɪtlɐ] ( listen); 20 April 1889 – 30 April 1945) was an Austrian-born German politician and the leader of the National Socialist German Workers Party (German: Nationalsozialistische Deutsche Arbeiterpartei (NSDAP), commonly referred to as the Nazi Party). He was chancellor of Germany from 1933 to 1945 and dictator of Nazi Germany (as Führer und Reichskanzler) from 1934 to 1945. Hitler is commonly associated with the rise of fascism in Europe, World War II, and the Holocaust.

A decorated veteran of World War I, Hitler joined the German Workers' Party, precursor of the Nazi Party, in 1919, and became leader of the NSDAP in 1921. In 1923, he attempted a coup d'état, known as the Beer Hall Putsch, in Munich. The failed coup resulted in Hitler's imprisonment, during which time he wrote his memoir, Mein Kampf (My Struggle). After his release in 1924, Hitler gained popular support by attacking the Treaty of Versailles and promoting Pan-Germanism, antisemitism, and anticommunism with charismatic oratory and Nazi propaganda. After his appointment as chancellor in 1933, he transformed the Weimar Republic into the Third Reich, a single-party dictatorship based on the totalitarian and autocratic ideology of Nazism. His aim was to establish a New Order of absolute Nazi German hegemony in continental Europe.

Bartholomew JoJo "Bart" Simpson is a fictional main character in the animated television series The Simpsons and part of the Simpson family. He is voiced by actress Nancy Cartwright and first appeared on television in The Tracey Ullman Show short "Good Night" on April 19, 1987. Bart was created and designed by cartoonist Matt Groening while he was waiting in the lobby of James L. Brooks' office. Groening had been called to pitch a series of shorts based on Life in Hell but instead decided to create a new set of characters. While the rest of the characters were named after Groening's family members, Bart's name was an anagram of the word brat. After appearing on The Tracey Ullman Show for three years, the Simpson family received its own series on Fox, which debuted December 17, 1989.

At ten years old, Bart is the eldest child and only son of Homer and Marge, and the brother of Lisa and Maggie. Bart's most prominent character traits are his mischievousness, rebelliousness and disrespect for authority. He has appeared in other media relating to The Simpsons, including video games, The Simpsons Movie, The Simpsons Ride, commercials, and comic books; he has also inspired an entire line of merchandise. In casting, Nancy Cartwright originally planned to audition for the role of Lisa, while Yeardley Smith tried out for Bart. Smith's voice was too high for a boy, so she was given the role of Lisa. Cartwright found that Lisa was not interesting at the time, so instead auditioned for Bart, which she thought was a better role. Hallmarks of the character include his chalkboard gags in the opening sequence; his prank calls to Moe the bartender; and his catchphrases "Eat my shorts", "¡Ay, caramba!", and "Don't have a cow, man!"

Trey Parker (born Randolph Severn Parker III; October 19, 1969) is an American actor, voice artist, animator, screenwriter, director, producer and musician, best known for being the co-creator of South Park along with his creative partner and best friend Matt Stone.

Parker started his film career in 1992, making a holiday short titled Jesus vs. Frosty. His first success came from Cannibal! The Musical. From there he made another short titled Jesus vs. Santa, which led him and college friend Stone to create South Park, which began airing on television in 1997. He has won four Emmy Awards for his role in South Park, winning for both "Outstanding Programming More Than One Hour" and "Outstanding Programming Less Than One Hour".

He co-wrote and co-directed the 2011 multi-Tony Award winning musical The Book of Mormon.