Scott William Winters (born August 5, 1965) is an American actor.

Winters is of Irish and Italian descent,^[1] and grew up on Long Island and in Scottsdale, Arizona. He attended Brophy College Preparatory, a Jesuit school in Phoenix. Winters has three siblings: brothers Dean (an actor) and Bradford (a poet/writer), and a sister, Blair Winters. Scott is best known for playing Cyril O'Reily in the HBO drama Oz opposite his brother, Dean, who appeared as Cyril's brother, Ryan.

Winters 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, and in Season 3 of The Americans as EST seminar leader Lawrence. He made an appearance in the show The Book of Daniel, in an episode that was only aired online.^[2]

• The Prosecutors – Jeff Kendall (TV movie, 1996)
• The People vs. Larry Flynt – Blow Dried Jerk (1996)
• Good Will Hunting – Clark (1997)
• Homicide: Life on the Street – Eddie Dugan (2 episodes, 1997)
• Promised Land – Ellis (1 episode, 1998)
• Oz – Cyril O'Reily (45 episodes, 1998–2003)
• The Pretender – Ray (1 episode, 1999)
• The Beat – Damon Lawrence (1 episode, 2000)
• Angel – Jack McNamara (1 episode, 2000)
• Jay and Silent Bob Strike Back – Clark/Himself (2001) (Uncredited)
• The Dead Zone – Ranger Randy Turman (1 episode, 2003)
• Fastlane – Ghost Goucher (1 episode, 2003)
• 10-8: Officers on Duty – Senior Deputy Matt Jablonski (15 episodes, 2003–2004)
• CSI: Miami – Fred Kinnan (1 episode, 2004)
• NYPD Blue – Detective Stan Hatcher (7 episodes, 2004)
• The Jury – John McCarthy (1 episode, 2004)
• Numb3rs – Glen Nash (1 episode, 2005)
• Crossing Jordan – Ranger (1 episode, 2005)
• North Shore – Marvin (1 episode, 2005)
• Dexter – Detective McNamara (2 episodes, 2006)
• CSI: Crime Scene Investigation – Don Fitzgibbons (1 episode, 2006)
• Wildfire – Hal Berney (1 episode, 2006)
• 13 Graves – Gary Domino (TV Movie, 2006)
• Without a Trace – Don Foster (1 episode, 2007)
• Lincoln Heights – Lieutenant Pogue (2 episodes, 2007)
• 24 – FBI Agent Samuels (4 episodes, 2007)
• Eyes – Detective Bates (1 episode, 2007)
• Law & Order – Timmy Serco (1 episode, 2008)
• Urgency – Canaan (2010)
• New York'ta Beş Minare (2010)
• Borgia – Riario Sansoni (25 episodes, 2011–2014)
• The Leftovers – Michael (1 episode, 2014)
• Law & Order: Special Victims Unit – Robert Dumas, NYPD detective (4 episodes, 2011–2015)
• The Americans – Lawrence, EST seminar leader (2015)
• Lethal Weapon – Deputy Luke Barton (1 episode, 2017)
• Berlin Station – Nick Fischer (4 episodes, 2017)
• Criminal Minds – Dr. Robert Smith (1 episode, 2018)
• NCIS – Westley Clark, CIA officer (3 episodes, 2018–2019)
• Station 19 – Officer Schneider (1 episode, 2020)

• Scott William Winters at IMDb
• Scott William Winters | Official Site