01of 26NBCThis actress played Stacey Carosi, Zack Morris' love interest when he and the gang worked at Malibu Sands Beach Club the summer before senior year. Do you recognize her?
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NBC

This actress played Stacey Carosi, Zack Morris' love interest when he and the gang worked at Malibu Sands Beach Club the summer before senior year. Do you recognize her?
02of 26
It’s Leah Remini!
JC Olivera/WireImage

03of 26NBCThis actress played Cynthia, who fell for A.C. Slater (who didn’t?) and pretended to drown at the Malibu Sands Beach Club so that he would pay attention to her. Hey, it worked!
03of 26

This actress played Cynthia, who fell for A.C. Slater (who didn’t?) and pretended to drown at the Malibu Sands Beach Club so that he would pay attention to her. Hey, it worked!
04of 26It’s Denise Richards!The role was one of Richards' first! Now, you can catch her onThe Real Housewives of Beverly Hills.
04of 26
It’s Denise Richards!

The role was one of Richards' first! Now, you can catch her onThe Real Housewives of Beverly Hills.
05of 26NBCThe man in the neon grew up to be a famous actor. Here’s a hint: He is so hot, he became McSteamy!
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The man in the neon grew up to be a famous actor. Here’s a hint: He is so hot, he became McSteamy!
06of 26
It’s Eric Dane!
Rick Kern/Getty

07of 26NBCScreech Powers didn’t have much luck with the ladies throughout the series. That is, until Violet Anne Bickerstaff came along.
07of 26

Screech Powers didn’t have much luck with the ladies throughout the series. That is, until Violet Anne Bickerstaff came along.
08of 26It’s Tori Spelling!Tori Spelling.Jerod Harris/WireImageBeforeBeverly Hills, 90210, Spelling had a recurring role on the show as Screech’s girlfriend.
08of 26
It’s Tori Spelling!
Tori Spelling.Jerod Harris/WireImage

BeforeBeverly Hills, 90210, Spelling had a recurring role on the show as Screech’s girlfriend.
09of 26NBCRobin was a gold digger who managed to con Screech into spending all of his money on her after he made it big on spaghetti sauce (no, really) … and then dumped him.
09of 26

Robin was a gold digger who managed to con Screech into spending all of his money on her after he made it big on spaghetti sauce (no, really) … and then dumped him.
10of 26It’s Soleil Moon Frye!Vivien Killilea/GettyThe actress had experience on the screen before her cameo, having played Punky Brewster.
10of 26
It’s Soleil Moon Frye!
Vivien Killilea/Getty

The actress had experience on the screen before her cameo, having played Punky Brewster.
11of 26NBCBefore heading to high school, Zack Morris had a middle school fling with a girl named Karen. The problem? Zack had lied to Karen about his age, saying that he was older. Doesn’t Karen look familiar?
11of 26

Before heading to high school, Zack Morris had a middle school fling with a girl named Karen. The problem? Zack had lied to Karen about his age, saying that he was older. Doesn’t Karen look familiar?
12of 26
It’s Carla Gugino!
Emma McIntyre/Getty

13of 26NBCThis legendary DJ made an appearance as himself on the show not once, but twice!
13of 26

This legendary DJ made an appearance as himself on the show not once, but twice!
14of 26It’s Casey Kasem!Arun Nevader/WireImageThe DJ showed up at The Max to host a dance competition (anyone else remember “The Sprain”?) and then again as the narrator to a rockumentary of the group after they become famous musicians. Never forgettheir iconic song, “Friends Forever.”
14of 26
It’s Casey Kasem!
Arun Nevader/WireImage

The DJ showed up at The Max to host a dance competition (anyone else remember “The Sprain”?) and then again as the narrator to a rockumentary of the group after they become famous musicians. Never forgettheir iconic song, “Friends Forever.”
15of 26NBCThis actress appeared in the episode where Zack Morris gets an incredible score on his SATs, much to Jessie Spano’s dismay.
15of 26

This actress appeared in the episode where Zack Morris gets an incredible score on his SATs, much to Jessie Spano’s dismay.
16of 26It’s Christine Taylor!Monica Schipper/WireImageIn one of her earliest roles, Taylor played Heather, whom Zack offered to tutor for the SATs. Zack planned to woo her, but his plans were thwarted when she brought her boyfriend to their study session.
16of 26
It’s Christine Taylor!
Monica Schipper/WireImage

In one of her earliest roles, Taylor played Heather, whom Zack offered to tutor for the SATs. Zack planned to woo her, but his plans were thwarted when she brought her boyfriend to their study session.
17of 26NBCBefore this actor got his big break withParty of Five,he played various roles on the television show.
17of 26

Before this actor got his big break withParty of Five,he played various roles on the television show.
18of 26It’s Scott Wolf!Jason LaVeris/FilmMagicWolf can be seen in episodes as a member of the glee club, a waiter at The Max and even an unnamed extra.
18of 26
It’s Scott Wolf!
Jason LaVeris/FilmMagic

Wolf can be seen in episodes as a member of the glee club, a waiter at The Max and even an unnamed extra.
19of 26NBCWithout this actor, we wouldn’t have gotten to see Zack and Kelly eventually (spoiler alert) get married.
19of 26

Without this actor, we wouldn’t have gotten to see Zack and Kelly eventually (spoiler alert) get married.
20of 26It’s Gilbert Gottfried!Jim Spellman/WireImageThe comedian known for his voice acting in films likeAladdinplayed Bert Banner, a man who gave Zack and the guys jobs as golf caddies so that Zack could pay for his wedding (at the ripe age of 19).
20of 26
It’s Gilbert Gottfried!
Jim Spellman/WireImage

The comedian known for his voice acting in films likeAladdinplayed Bert Banner, a man who gave Zack and the guys jobs as golf caddies so that Zack could pay for his wedding (at the ripe age of 19).
21of 26

22of 26It’s Michael Jai White!Jesse Grant/GettyHis role on the series was his first, but White went on to star in television series likeBlack DynamiteandArrow.
22of 26
It’s Michael Jai White!
Jesse Grant/Getty

His role on the series was his first, but White went on to star in television series likeBlack DynamiteandArrow.
23of 26NBCIn 1992, this actress played the ditzy Ginger, a blonde student who managed to snag a date or two with Zack Morris.
23of 26

In 1992, this actress played the ditzy Ginger, a blonde student who managed to snag a date or two with Zack Morris.
24of 26It’s Bridgette Wilson!Tiffany Rose/WireImageYou know Wilson from films likeI Know What You Did Last SummerandBilly Madison, but did you recognize her in this part?
24of 26
It’s Bridgette Wilson!
Tiffany Rose/WireImage

You know Wilson from films likeI Know What You Did Last SummerandBilly Madison, but did you recognize her in this part?
25of 26NBCThere was a time when Kelly Kapowski dumped Zack Morris gasp for the hot, older Jeff. Jeff managed The Max, where Kelly waitressed and the group hung out.
25of 26

There was a time when Kelly Kapowski dumped Zack Morris gasp for the hot, older Jeff. Jeff managed The Max, where Kelly waitressed and the group hung out.
26of 26It’s Patrick Muldoon!Jason LaVeris/FilmMagicMuldoon played Jeff, who eventually got caught smooching another girl. The horror! PostSBTB,Muldoon would appear onMelrose PlaceandDays of Our Lives.
26of 26
It’s Patrick Muldoon!

Muldoon played Jeff, who eventually got caught smooching another girl. The horror! PostSBTB,Muldoon would appear onMelrose PlaceandDays of Our Lives.
source: people.com