WATCH: 16 Celebs Who Starred in Fast Food Commercials Before They Were Famous

(Getty)

Much like the rest of us, Hollywood's hottest celebrities spent their formative years stuffing their faces with flame-broiled beef, Enchiritos, and double-cheeseburger pizza.

Unlike us, however, those celebrities were stuffing their soon-to-be-recognizable faces for the good of their careers.

Before they hit it big, beloved actors such as Michael J. Fox and Ben Affleck were starring in fast food commercials for places like McDonald's and Burger King. And while their roles were arguably less meaty than the hamburgers they were endorsing, they used those roles as stepping stones on their journey toward fame, fortune and a fulfilling life in the spotlight.

The rest of us were just hungry for Whoppers, probably. Anyway, here's those commercials we mentioned earlier:

Michael J. Fox

Michael J. Fox desperately wants his date's affections, but he's also interested in her mouthwatering french fries. Luckily, he escapes this McDonald's commercial with both.

Steve Carell

When Brown's chicken switched to a cholesterol-free recipe, Steve Carell was extremely excited to share the news. In fact, he was so excited that he completely disregarded the white sedan that almost ran over a motorcyclist at the 20 second mark.

Meg Ryan 

In 1982, Meg Ryan interrupted our regularly scheduled Burger King commercials to plug the restaurant's "Aren't You Hungry?" promotion, which offered diners the chance to win a million dollars.

Jason Alexander

Judging by this McDonald's commercial, the #1 problem in the '80s was hamburgers with warm lettuce. The short-lived McDLT arrived to solve all of this, complete with its own song and dance routine starring "Seinfeld" alum Jason Alexander.

Ben Affleck

If you're a woman with a sultry voice, don't dial Ben Affleck's car phone by mistake. He has no qualms about fraudulently posing as a Burger King delivery man in order to get your address, drive to your house, and seduce you.

Julianna Margulies

For Julianna Margulies of "ER" and "The Good Wife," a McDonald's Big Mac is too much food for its reasonable price tag. What she wants is slightly less food for a slightly more reasonable price tag.

James Franco

When Elvis finally comes back from the dead, he's going to want one thing and one thing only: Pizza Hut. At least that's the sentiment of this Pizza Hut ad featuring James Franco as a skeptic who wrongly assumes otherwise.

Andrew McCarthy and Elisabeth Shue

Before they hit it big, Andrew McCarthy and Elisabeth Shue were just two crazy kids in love … with the taste of Pepsi and Whoppers. Here, they inform us of said love with the anxiousness of underage teenagers on the verge of eloping.

Megan Mullally and John Goodman

Not only did this McDonald's commercial showcase the talents of actors Megan Mullally and John Goodman, but it also introduced us to a catchy Egg McMuffin jingle that we never knew existed.

Sarah Michelle Gellar

At only 5 years old, future "Buffy the Vampire Slayer" actress Sarah Michelle Gellar was already unhappy with the size of the burger patties at McDonald's, so she went to Burger King instead. (Interestingly enough, this commercial got Gellar for a short time.)

Patrick Duffy

Does Taco Bell offer its employees a commission on every order? Because that would explain why future "Dallas" star Patrick Duffy feels the need to upsell an innocent Taco Bell customer in this ad from the '70s.

Jodie Foster

If the following commercial is to be believed, Jodie Foster used to live in McDonaldland and survive solely on milkshakes. So when all the drinking vessels in McDonaldland disappeared one day (leaving Jodie without any milkshakes), her and friend Ronald McDonald hatched a convoluted plan to get them back. This is that story.

Elijah Wood

Elijah Wood is lucky that his dad is god-awful at planning a backyard barbecue. Otherwise, little Elijah and his family would never have gotten their fill of delicious double-cheeseburger pizza from Pizza Hut.

Corey Feldman

On Christmas Eve, Santa gets more cookies than he knows what to do with. Luckily, little Corey Feldman knew what Santa really wanted: a coupon for 50¢ off his next McDonald's Value Meal.