Burger King is a real fast-food chain restaurant famous for its flame-broiled hamburger known as "The Whopper". While its older logo was seen in "Super Fun Time" and "Ass Burgers", a physical building with the newer logo was first seen in "Let Them Eat Goo".
In "Super Fun Time", The Burger King Bandits take shelter at Pioneer Village after having robbed a nearby Burger King. The loot from the robbery consists of cash and 4 to-go orders from the restaurant. Later, one of the robbers, Orlich, demands his cut of the loot in advance, receiving a small amount of money and a to-go bag. He takes out the burger and leafs through its contents like a deck of playing cards to make sure nothing is missing.
In "Ass Burgers", a representative of Burger King, along with representatives of McDonald's, KFC, Pizza Hut, Taco Bell, Subway, and Chic-Fil-A, discuss their grievances with Cartman Burger. The Burger King representative tells the group that he thinks that Cartman is using some sort of hi-tech dutch oven to create the unique flavor. He, along with the rest of the fast-food representatives, is later killed when their failed attempt to get the recipe leads to a drunken melee with the Secret Society of Cynics.
In "Let Them Eat Goo", while driving into town with Towelie to recycle mulch, Randy Marsh stops by a Burger King to get some food. He eventually notices a new item called the "Impossible Burger". The manager, Rick, explains that it is a plant-based burger that is meant to replicate the taste and texture of beef and it is popular as people care about the environment and sustainability. After claiming that it tastes like shit, Randy has an idea and creates his own version. He begins selling them by the Burger King entrance, upsetting Rick, since everyone is now trying Randy's burgers instead of going inside the restaurant. Eventually, the restaurant is completely empty and a depressed Rick lets out a sigh, just before hearing some music across the street. He runs outside to find that Randy has opened Tegridy Burger directly across the street and it is completely packed, causing Rick to scream out in frustration. Later, the restaurant serves as a private meeting space between the Goo Man, Cartman, and Butters, who explains to the boys that he is a "Goo Man" and that he plans to sell his goo to places that serve crappy food. He also reveals that he has set his plans in motion, as he has named Rick his new regional manager and used one of the Two Farmers to leave 300 cows at Tegridy Farms.
- "Super Fun Time" - Robbed by the Burger King Bandits who use their burgers as money.
- "Ass Burgers" - Represented along with other fast food restaurants who want to know the secret behind Cartman Burger.
- "Let Them Eat Goo" - Becomes the main competition for Randy and Tegridy Burger. Also serves as a private meeting area between the Goo Man, Cartman and Butters.