may not adequately summarize its contents. To comply with Wikipedia's lead section guidelines, please consider expanding the lead to provide an accessible overview of the article's key points. (May 2010) This biographical article needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately, especially if potentially libelous or harmful. (May 2010) Mark-Paul Gosselaar Born Mark-Paul Harry Gosselaar March 1, 1974 (1974-03-01) (age 37) Panorama City, California, United States Occupation Actor Years active 1986–present Spouse Lisa Ann Russell (1996-2010) (2 children) Mark-Paul Harry Gosselaar (born March 1, 1974) is an American actor. He is perhaps best known for his roles as Zack Morris in NBC's Saved by the Bell, Good Morning, Miss Bliss, and Saved by the Bell: The College Years, Detective John Clark in NYPD Blue, and more recently as Jerry Kellerman in TNT's Raising the Bar..