1. John Corbett
Before he played Carrie’s boyfriend Aidan on Sex and the City, John Corbett was Karen’s boyfriend Louis in “Angel.”
2. Mark-Paul Gosselaar
The future Zack Morris competes with Kevin for Lisa Berlini in “Dance With Me.”
3. Breckin Meyer
Can’t have Bash without Franklin! Breckin Meyer played bad boy Gary in “The Heart of Darkness.”
4. Dustin Diamond
More Saved by the Bell alumni: Dustin Diamond was Joey in “Loosiers” and “The Glee Club.”
5. Juliette Lewis
Two years before doing Cape Fear, young Juliette Lewis macked on Wayne as his girlfriend Delores in three Season 2 episodes.
6. Ben Savage
Fred Savage’s little brother Ben, who went on to star in Boy Meets World, played Curtis (as Cupid) in “The St. Valentine’s Day Massacre.”
7. Michael Bower
Michael Bower AKA Donkeylips was one of Kevin’s classmates in three episodes — but his character’s name kept changing. Here he is as Joe in “Faith.”
8. Soleil Moon Frye
Punky Brewster herself appeared as Mimi, the daughter of one of Jack’s coworkers, in “Growing Up.”
9. David Schwimmer
Three years before Friends, David Schwimmer began his four-episode arc as Karen’s boyfriend (and eventual husband) Michael.
10. Carla Gugino
Now known for movies like Sucker Punch and Sin City, Carla Gugino was Wayne’s girlfriend Sandy in “Triangle.”
11. Alicia Silverstone
Cher Horowitz also attended high school with Kevin: in “Road Test,” she’s Jessica, a girl Kevin has a crush on.
12. Jim Caviezel
Before he was Jesus, Jim Caviezel played a different deity, star basketball player Bobby Riddle in “Hero.”
13. Giovanni Ribisi
Giovanni Ribisi actually had a significant run on The Wonder Years, playing Kevin’s friend Jeff Billings in 15 episodes.
14. Seth Green
Seth Green showed up in two later season episodes as screw-up Jimmy Donnelly.
15. Jeremy Davies
That’s Jeremy Davies from Lost and Justified standing behind Kevin. He was Eddie Horvath in “Sex and Economics.”
16. Eric Dane
In “Nose,” McSteamy plays Brett Davis, captain of the football team and prom date of Hayley, a girl with a big nose.
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