Sam Bobrick Creator Mark-Paul Gosselaar Zack Morris Actor Tiffani Thiessen Kelly Kapowski Actor Mario López A.C. Slater Actor Elizabeth Berkley Lauren Jessie Spano Actor Dustin Diamond Samuel 'Screech' Powers Actor Lark Voorhies Lisa Turtle Actor Dennis Haskins Mr. Richard Belding Actor Shana Furlow Joanna Guest Star Jon Clair Darren Brooks Guest Star Vaughn Armstrong Mr. Breskin Guest Star Bel Hernandez Martha Guest Star Peter Engel Executive Producer Scott Spencer Gordon Writer Don Barnhart Director Franco Bario Producer Bennett Tramer Producer