Scott William Winters (born August 5, 1965) is an American actor.
Winters has three siblings: brothers Dean (an actor) and Bradford (a poet/writer), and sister Blair. Scott is best known for playing Cyril O'Reily in the HBO drama Oz opposite his brother, Dean Winters, who appeared as Cyril's brother, Ryan.
He had a notable role in the film Good Will Hunting as Clark, a pompous rival for Minnie Driver's attention who is bested by Matt Damon. He reprised the role, along with Damon and Ben Affleck, in a parody scene in Jay and Silent Bob Strike Back. He played Det. Stan Hatcher, a recurring character on the TV series NYPD Blue. He appeared in a few episodes of Season 6 of 24, as FBI Agent Samuels. He made an appearance in the show The Book of Daniel, in an episode that was only aired online.