Mark Paul Gosselaar

Mark-Paul Gosselaar's Zack Morris hung out with Fallon, Jessie Spano, and A.C. Slater in the Tonight Show sketch.

Mark-Paul Gosselaar's Sir is officially out of the basement. So what's next?

At a recent Found panel, actor Mark-Paul Gosselaar clarified what he actually thinks about Sir's motivations toward Gabi.

Shanola Hampton gives her thought on the "undefined chemistry" Gabi Mosely has with Sir.

The Found star teased what’s to come for Gabby and Sir in the new season.

With Sir on the loose, everyone is in danger when Found enters its second season. 

All of the characters on Found have secrets. Now, one of them has been exposed.

If you're still trying to lift your jaw from the floor after the Found finale, trust us, you're not alone. 

As Gabi Mosely threatens to come clean about the man she's holding in her basement, fans of Found are eager to discover Sir's fate.

Gosselaar stars as the "vile" abductor stuck in the basement of his former kidnappee.