Angela Bassett was a flight attendant in about two seconds of Kindergarten Cop
Selena Gomez played a kid for two years on Barney & Friends
Mike O’Malley was the host of Nickelodeon’s Global Guts
Joe Manganiello was Peter Parker’s bully in the original Spider-Man
Adam Sandler got his start as Smitty on The Cosby Show
Johnny Galecki was Rusty in National Lampoon’s Christmas Vacation
Eric Stonestreet played a hotel receptionist in 10 seconds of Almost Famous
Maggie Wheeler was the camp counselor in The Parent Trap
Laurence Fishburne played a soldier in Apocalypse Now, even though he was only 14 and lied about his age to get the part
Hugh Laurie was actually in Spice World
Don Cheadle was in a single episode of The Fresh Prince of Bel-Air
Elijah Wood is credited as “video game boy” in Back to the Future Part II
Jessica Alba was a school bully in The Secret World of Alex Mack
Kevin Hart played a cameraman in Along Came Polly
John Cho played a parking valet in The Flintstones in Viva Rock Vegas
Amy Adams was on a single episode of Charmed in one of her very first acting credits
Adam Scott was Griff Hawkins, the new kid/bully, in a few episodes of Boy Meets World
James Marsden was in two episodes of The Nanny
Jennifer Lawrence’s first acting role was as a school mascot in one episode of Monk
Ben Affleck played an uncredited basketball player in the Buffy the Vampire Slayer movie
Kaley Cuoco played Elisa in the Disney Channel movie Alley Cats Strike
Aubrey Plaza had one line as an NBC page on 30 Rock
Ryan Gosling was in an episode of both Goosebumps and Are You Afraid of the Dark? in the ’90s
Zachary Quinto played a TV commercial director in an episode of Lizzie McGuire
Leonardo DiCaprio was an extra as one of Darlene’s classmates in Roseanne
Octavia Spencer was the check-in lady at the wrestling arena in Spider-Man
Ashley Tisdale was a student in Donnie Darko
Scarlett Johansson was Alex’s older sister in Home Alone 3