Mark-Paul Gosselaar (b. 1974) plays Jake Ferris, Linc's business partner, in "His Visit: Day Six".
Gosselaar first came to public notice in the role of Zack Morris, the star of Saved by the Bell, which aired on NBC from 1989 to 1993. He also played Detective John Clark on a previous David Milch series, NYPD Blue, from 2001 to 2005.