
Terrance Quinn (born July 15, 1952), known professionally as Terry O'Quinn, is an American actor. He is best known for his Emmy Award-winning performance as John Locke on the TV series Lost (2004–2010). He had roles in films including The Stepfather (1987), The Rocketeer (1991), Heaven's Gate (1980), Silver Bullet (1985), Young Guns (1988), Blind Fury (1989), Tombstone (1993) and Primal Fear (1996). Other prominent television roles include Peter Watts in Millennium (1996–1999), FBI Asst. Director Kendall in Alias (2002–2004), Commander Joe White in Hawaii Five-0 (2011–2018), and Tom Tavner in Patriot (2015–2018).




























2024Getting LOST as Self
2024Unsung Hero as Grandpa James
2024The Walking Dead: The Ones Who Live (3 Episodes) as Major General Johnathan Beale
2022PIECES OF HER (6 Episodes) as Martin Queller
2021Christmas Sail as Dennis
2021Ultra City Smiths (6 Episodes) as Captain Krieger (voice)
2021Resident Alien (12, 1 Episode) as Peter Bach, Peter Bach (voice)
2020FBI: Most Wanted (9 Episodes) as Byron LaCroix
2019Emergence (5 Episodes) as Richard Kindred
2019Perpetual Grace LTD (10 Episodes) as Wesley Walker
2018Castle Rock (10 Episodes) as Dale Lacy
2017Mysteries of the Missing (8 Episodes) as Self - Host
2017The Blacklist: Redemption (7 Episodes) as Howard Hargrave
2016New Life as Dr. Philip Sumrall
2015Patriot (18 Episodes) as Tom Tavner
2015Secrets and Lies (10 Episodes) as John Warner
2014Gang Related (13 Episodes) as Sam Chapel
2013Full Circle (10 Episodes) as Jimmy Parerra
2012Ring of Fire (2 Episodes) as Oliver Booth
2012666 Park Avenue (13 Episodes) as Gavin Doran
2011Taken from Me: The Tiffany Rubin Story as Mark Miller
2010Hawaii Five-0 (16 Episodes) as Joe White
2007Masters of Science Fiction (1 Episode) as Unknown
2004Lost (118 Episodes) as John Locke
2003Phenomenon II as Unknown
2003NCIS (1 Episode) as Will Ryan
2003Old School as Goldberg (uncredited)
2003Jimmy Kimmel Live! (1 Episode) as Self
2002The Locket as Casey Keddington
2002Town Diary as Unknown
2002Hometown Legend as Buster Schuler
2002First Monday (1 Episode) as Unknown
2001Alias (18 Episodes) as Kendall
2001Law & Order: Criminal Intent (1 Episode) as Gordon Buchanan
2001Good Day Live (1 Episode) as Self
2001American Outlaws as Rollin H. Parker
2001WW3 as Eric Farrell
2001Semper Fi as Cliff's Father
2000Rated X as J.R. Mitchell
1999Harsh Realm (9 Episodes) as Unknown
1999Roswell (1 Episode) as Carl
1999The West Wing (7 Episodes) as Nicholas Alexander
1999Murder in a Small Town as Sidney Lassiter
1998The X-Files as Michaud
1997Breast Men as Hersch Lawyer
1997The View (1 Episode) as Self
1997My Stepson, My Lover as Richard Cory
1997On the Edge of Innocence as David Walker
1997Shadow Conspiracy as Frank Ridell
1996Ghosts of Mississippi as Judge Hilburn
1996Millennium (40 Episodes) as Peter Watts
1996Primal Fear as Yancy
1995JAG (6, 4 Episode) as Admiral Thomas Boone, Thomas Boone
1995The Client (1 Episode) as Bert Halliwell
1995Ray Alexander: A Menu for Murder as Frank Darnell
1995Shadow Warriors as Dr. Connors
1994Earth 2 (6 Episodes) as Reilly
1994Lipstick Camera as Raymond Miller
1994A Friend to Die For as Ed Saxe
1994Justice in a Small Town as Harris Wiley
1994Don't Talk to Strangers as Bonner
1994Heart of a Child as Gordon Holc
1994MacShayne: Winner Takes All as Danny Leggett
1993Tombstone as Mayor John Clum
1993Diagnosis: Murder (1 Episode) as Ronald Trent
1993Amityville: A New Generation as Detective Clark
1993The X-Files (1, 1 Episode) as Lt. Brian Tillman, Shadow Man
1993Visions of Murder as Adm. Truman Hager
1993Born Too Soon as Dr. Friedman
1993Homicide: Life on the Street (1 Episode) as Unknown
1992The Good Fight as Henry Cragin
1992Wild Card as Barlow
1992Sexual Advances as Cliff Ripley
1992Trial: The Price of Passion as Bob Altschuler
1992Deliver Them from Evil: The Taking of Alta View as Sergeant Don Bell
1992The Cutting Edge as Jack Moseley
1992My Samurai as Unknown
1991Company Business as Colonel Pierce Grissom
1991The Rocketeer as Howard Hughes
1991Shoot First: A Cop's Vengeance as Sergeant Nicholas
1991Son of the Morning Star (2 Episodes) as Gen. Alfred Terry
1991The Last to Go as Daniel
1990Kaleidoscope as Henry
1990Blood Oath as Major Beckett
1990Perry Mason: The Case of the Desperate Deception as Curt Mitchell
1989Stepfather 2 as Dr. Gene Clifford / Jerry Blake
1989The Forgotten One as Bob Anderson
1989Blind Fury as Frank Devereaux
1989Tales from the Crypt (1 Episode) as Inspector Martin Zeller
1989Roe vs. Wade as Jay Floyd
1989Guts and Glory: The Rise and Fall of Oliver North as Aaron Sykes
1988Pin as Dr. Frank Linden
1988Young Guns as Alex McSween
1988Stranger on My Land as Connie Priest
1988The Jogger as Jerry
1987Star Trek: The Next Generation (1 Episode) as Admiral Eric Pressman
1987Jake and the Fatman (1 Episode) as Vincent Novak
1987A Year in the Life (1 Episode) as Keith
1987When the Time Comes as Wes Travis
1987Black Widow as Bruce
1987The Stepfather as Jerry Blake
1987At Mother's Request (1 Episode) as Joel Campbell
1986Women of Valor as Maj. Tom Patterson
1986L.A. Law (1 Episode) as Nick Moats
1986SpaceCamp as Launch Director
1986Between Two Women as Dr. Wallace
1986Matlock (1 Episode) as Unknown
1985Silver Bullet as Sheriff Joe Haller
1985The Twilight Zone (1 Episode) as Curt Lockridge (segment "Chameleon")
1985Right to Kill? as Jim Barrett
1985An Early Frost as Dr. Redding
1985Moonlighting (1 Episode) as Bryant Wilbourne
1985Mischief as Claude Harbrough
1984Mrs. Soffel as Detective Buck McGovern
1984Miami Vice (1 Episode) as Richard Cain
1984Places in the Heart as Buddy Kelsey
1983All the Right Moves as Freeman Smith
1983Jacobo Timerman: Prisoner Without a Name, Cell Without a Number as Colonel Thomas Rhodes
1983Without a Trace as Parent
1982Remington Steele (1 Episode) as Chuck McBride
1980Heaven's Gate as Captain Minardi
1980F.D.R.: The Last Year as James Roosevelt
1979Tales of the Unexpected (1 Episode) as Cop
1951Hallmark Hall of Fame (1 Episode) as Michael Keddington's Abusive Father