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 Gary Lahti Dan Grayson Guest Star Hiram Kasten Mr. Phelps Guest Star Casper Van Dien Student Guest Star Michael Warwick Franklin Finkley Guest Star Peter Engel Executive Producer Franco Bario Producer Bennett Tramer Producer Tom Tenowich Writer Peter Engel Writer Don Barnhart Director