15 big stars you probably didn't know were once 'Saturday Night Live' cast members

Seasons: 2

The late John Belushi is synonymous with "SNL," but his brother joined after John's death. He didn't last long, however, before becoming better known for movies like "About Last Night..." and "Little Shop of Horrors."

Seasons: 2

An original cast member, Chevy Chase did a lot with his short time on "SNL," including making "Weekend Update" a staple. He excited for a successful run at movies, and left in his wake Bill Murray, for which we're all grateful.

Seasons: 1

Already a TV regular, Crystal actually hosted "SNL" before joining the cast for a stint in the mid-'80s, where he became known for a character whose catchphrase was "You look... mahvelous!" But hosting was always his true calling, which has made him a veteran of the Oscars MC spot.

Seasons: 1

Another one who was destined for movies, the sister of John Cusack put in her time with various impressions on "SNL" before she costarred in one of the most indelible movies of the '80s, "Say Anything..."

Seasons: 1

You probably think of "Reality Bites" or even "The Ben Stiller Show" before you think of "SNL" when Garofalo comes up. She was only on the show for six months before leaving, and has said the "sexist" environment left her "anxious and depressed."

Seasons: 1

Garofalo wasn't the only "Reality Bites" star who didn't last on "SNL." Stiller was known for his short films at the time, which got him on the sketch show, but it turned out they didn't want his work, so he moved on to his own influential program, "The Ben Stiller Show."

Seasons: 1

A master of the mockumentary, Guest is the major creative force behind "Best in Show" and "Waiting for Guffman." He had already starred in "This Is Spinal Tap" before joining Billy Crystal and Martin short for a one-season-only stint on "SNL."

Seasons: 1

Short, like his castmates Crystal and Guest, bounced from the 1984-85 season for a lucrative movie acting career.

Seasons: 1

He might not be known as a straight-up comedian now, but the "Breakfast Club" star was (and still is) the youngest "SNL" cast member in history when he joined at age 17. He found the environment competitive, but it didn't hurt him too much, since he continued to be a major movie star.

Seasons: 2

McKean was actually the oldest person to join the "SNL" cast at 46, and after a brief tenure, made his way to many fruitful comedic collaborations, including with his pal and fellow ex-"SNL" star Christopher Guest.

Seasons: 1

Quaid has moved his way through everything from gross-out comedies like "Caddyshack II" to summer blockbusters like "Independence Day," but he also had a moment on "SNL" with a couple notable characters like The Floating Head.

Seasons: 1

Silverman seems destined for stardom now, but when he was briefly a writer and star on "SNL," none of her own sketches made it to air, which led to her being fired. Luckily, she found her own audience.

Seasons: 1

Jenny Slate is one of the rising faces of comedy now, thanks to parts in major animated movies including "Zootopia," plus her acclaimed movie "Obvious Child." A standup veteran, her time on "SNL" wasn't so fruitful. She made a mistake her first time on the air, broadcasting "f---ing" to the country.

Seasons: 1

Damon Wayans was fired from "SNL" for going off-script and playing a straight cop as gay. But he eventually brought a gay character (and much, much more) to the seminal, primarily black sketch show on Fox "In Living Color," before transitioning to movies.