Mark-Paul Gosselaar/Zack Morris
Credit: Chris Haston/NBCU Photo Bank/AP Images; GABRIEL BOUYS/AFP/Getty Images
The golden boy of the show, Gosselaar, now 38, had trouble saying goodbye to his character, prankster Zack Morris. He reprised his role for the college years spin-off, which lasted only one season, and the series' made-for-TV movies, including "Wedding in Las Vegas," in which Zach and Kelly (Thiessen) culminate their on-again-off-again romance in marriage.
Gosselaar returned to the spotlight in 1998's "Dead Man on Campus" but failed to gain momentum in Hollywood. After the short-lived TV series "Hyperion Bay," Gosselaar finally moved beyond Zack when he took on the role of Detective John Clark on "NYPD Blue" from 2001 to 2005. "Blue" creator Steven Bocho cast him in his 2008 legal drama "Raising the Bar" on TNT, but the show lasted only one season. Currently, he's the star of the TNT series "Franklin & Bash."
In 2011, he divorced former model Lisa Ann Russell, with whom he has two children, Michael Charles and Ava Lorenn, and married advertising executive Catriona McGinn in July 2012 after a yearlong engagement.
As for Zach, there may be hope with Kelly -- if Jimmy Fallon has his way. The late-night host has been trying to organize a "class reunion" since 2009. So far Gosselaar, Voorhies, Berkley, Lopez and Haskins have signed on. Tiffani Thiessen posted a parody video on the website Funny or Die, claiming she was too busy to participate.