Burger King's original Halloween Whopper featured a flame-grilled beef patty with American cheese, that was topped with lettuce, tomatoes, pickles, onions, mayonnaise, and A. 1. Thick and Hearty Sauce served on a black bun. It was also wrapped in a wrapper that looked like a mummy.

Sarah Michelle Gellar In 1981, Sarah Michelle Gellar made her small-screen debut - not in a supernatural teen drama, but in a Burger King commercial. And she found herself in legal trouble because of it.

The scary problem with Burger King's Halloween Whopper (and with so many of the highly processed, colorful foods you'll find on store shelves and in restaurants in America) is actually the combination of several artificial food dyes, including FD&C Yellow #6, FD&C Blue #1, and FD&C Red #40.

The Halloween Whopper was a limited time burger made in October of 2015 to promote the Halloween holiday.

Actor Sam Richardson, who is well-known for playing Richard Splett in “Veep” and more recently taking on roles in “The Afterparty” and "Ted Lasso,” has quite a strong, distinctive voice - similar to that of the man singing in the ad.

You guessed it: “Whopper, Whopper, Whopper, Whopper.” The commercial was devised by a Chicago advertising agency called OKRP.

It must be noted that till today, marketers are still split on whether the “moldy whopper” was a success. In a study by Ace Metrics for instance, it was found that Moldy Whopper did not induce instant cravings among gen pop viewers – with about 26% who indicated they were turned off from purchasing this burger.

While Burger King has overhauled management and its parent company is investing $400 million into the brand's revitalization, the combination of weak sales and soaring food and labor costs hurt the chain's operators. Credit ratings agencies downgraded multiple Burger King operators last year over such challenges.

Burger King actually started selling the Whopper in 1957, 11 years before McDonalds's introduced the Big Mac in 1968. The 4 Cheese Whopper – made with Swiss, American, mozzarella, and cheese sauce – was first offered in 2014 in the Philippines!

1953: Insta-Burger King is founded in Jacksonville, FL, by Keith Kramer and Matthew Burns. 1954: James McLamore and David Edgerton purchase Insta-Burger King and rename it Burger King. 1955: The Burger King character is created.

OKRP pitched Burger King the commercial directly. The idea was to update the brand's classic McDonald's-taunting tagline of the 1970s, “Have It Your Way,” which guaranteed customers the freedom to adjust the toppings of their Whopper. (Yes, once upon a time, it was impossible to hold the pickles on a Big Mac.)

McLamore created the burger after he noticed that a rival restaurant in Gainesville, Florida was succeeding by selling a larger burger. Believing that the success of the rival product was its size, he devised the Whopper, naming it so because he thought it conveyed "imagery of something big".