1. Christine Taylor
The former fake Marcia Brady and current Mrs. Ben Stiller appeared in a 1991 episode of the series (titled “S.A.T.s”) where goof-off Zack Morris miraculously scored higher on his SATs than over-achiever Jessie Spano. When Christine’s character Heather learned of Zack’s great score, she begged him to help her study.
2. Soleil Moon Frye
The Punky Brewster actress appeared in a season four episode of the show during which Screech “invents” a new kind of spaghetti sauce and gets rich quick (using the tag line, “The sauce-a you can have, but the secret? She’s-a mine!”) But, when it turns out that the geek’s recipe isn’t legit and he loses it all, Frye ditches him.
3. Scott Wolf
Though he later became a teen heartthrob with his role on Party of Five, Scott Wolf paid his dues as an unnamed extra on Saved by the Bell. He appeared as a waiter at the Max, a movie patron, and as a member of the chorus in various episodes. You can see him in the green sweater standing next to Jessi Spano in this clip.
4. Leah Remini
The queen of Queens is one of the best-known guest stars of Saved by the Bell. She played Stacey Carosi, daughter of the Malibu Sands Beach Club owner Leon Carosi (played by Ernie Sabella aka the voice of Pumbaa in The Lion King). Her role lasted seven episodes and included her signature New York accent.
5. Eric Dane
Now better known as McSteamy from Grey’s Anatomy, Eric Dane popped up in a summer episode of Saved by the Bell, while the gang was working at the Malibu Sands Beach Club. He played a former boyfriend of Stacey Carosi and an opponent in an annual volleyball competition. Sneak a peek of him here, in the neon orange shirt.
6. Tori Spelling
After years of chasing Lisa Turtle, Screech finally finds love in Violet Bickerstaff. She appeared in three episodes, including an episode called “House Party,” where the gang takes over Screech’s house while his parents’ are away for the weekend. There is an infamous scene featuring Zack, Slater, and Screech lip syncing to “Barbara Ann.”
7. Denise Richards
In the final episode filmed at the Malibu Sands Beach Club, Slater is pursued by Denise Richards, who has some unusual tactics for getting attention, including pretending to drown so he’ll have to rescue her.
8. Bridgette Wilson
In 1992, Wilson (who you know from all sorts of movies, including I Know What You Did Last Summer and Billy Madison) appeared in five episodes of Saved by the Bell as Ginger, a ditsy blond. Wilson was not always credited for this role
9. Rena Sofer
Best known for roles on 24 (Marilyn Bauer), NCIS (Margaret Allison Hart), and Melrose Place (Eve Cleary), Sofer appeared as a single mom (and Zack’s love interest, naturally) in 1992′s made-for-TV Saved by the Bell: Hawaiian Style movie.
10. Casey Kasem
Playing himself, the well-known radio personality (and voice of Shaggy on Scooby-Doo), appeared twice on Saved by the Bell — first as the host of a dance contest at the Max and the second as the narrator of the episode titled “Rockumentary,” during which Zack dreams of the gang (sans Jessi) as Zack Attack, a popular band that rises and falls.
