Terrance Quinn, known professionally as Terry O'Quinn, is an American actor. He played John Locke on the TV series Lost, the title role in The Stepfather and Stepfather II, and Peter Watts in Millennium, which ran for three seasons. He has also hosted Mysteries of The Missing on The Science Channel.
Known For
Credits
Cast Credits
The Walking Dead: The Ones Who Live (2024)
Guest starring as Beale
(3 episodes)
- Episode 1x06: The Last Time (Mar 31, 2024)
- Episode 1x03: Bye (Mar 10, 2024)
- Episode 1x01: Years (Feb 25, 2024)
Ultra City Smiths (2021)
Starring as Captain Krieger
(6 episodes)
- Episode 1x06: Family of Orphans (Aug 19, 2021)
- Episode 1x05: O-O-H Child (Aug 12, 2021)
- Episode 1x04: The Little Baby Hand Pinky Grip Thing (Aug 5, 2021)
- Episode 1x03: Hot Clues (Jul 29, 2021)
- Episode 1x02: The King of the Night (Jul 22, 2021)
- Episode 1x01: Ultra City, She Don't Care (Jul 22, 2021)
Resident Alien (2021)
Guest starring as Peter Bach
(9 episodes)
- Episode 3x08: Homecoming (Apr 3, 2024)
- Episode 3x05: Lovebird (Mar 13, 2024)
- Episode 3x04: Avian Flu (Mar 6, 2024)
- Episode 3x02: The Upper Hand (Feb 21, 2024)
- Episode 2x15: Best of Enemies (Sep 21, 2022)
- Episode 2x14: Cat and Mouse (Sep 14, 2022)
- Episode 2x05: Family Day (Feb 23, 2022) [Co-Star]
- Episode 2x04: Radio Harry (Feb 16, 2022) [Co-Star]
- Episode 1x09: Welcome Aliens (Mar 24, 2021) [Special Guest Star]
FBI: Most Wanted (2020)
Guest starring as Byron LaCroix
(9 episodes)
- Episode 3x15: Incel (Mar 22, 2022) [Special Guest Star]
- Episode 3x14: Shattered (Mar 8, 2022) [Special Guest Star]
- Episode 3x09: Run-Hide-Fight (Dec 14, 2021) [Special Guest Star]
- Episode 3x08: Sport of Kings (Dec 7, 2021) [Special Guest Star]
- Episode 2x14: Hustler (May 18, 2021) [Special Guest Star]
- Episode 2x13: Toxic (May 11, 2021) [Special Guest Star]
- Episode 2x05: The Line (Jan 26, 2021) [Special Guest Star]
- Episode 2x03: Deconflict (Dec 8, 2020) [Special Guest Star]
- Episode 2x01: Rampage (Nov 17, 2020) [Special Guest Star]
Emergence (2019)
Guest starring as Richard Kindred
(5 episodes)
- Episode 1x07: Fatal Exception (Nov 19, 2019) [Special Guest Star]
- Episode 1x06: Mile Marker 14 (Nov 5, 2019) [Special Guest Star]
- Episode 1x05: RDZ9021 (Oct 29, 2019) [Special Guest Star]
- Episode 1x04: No Outlet (Oct 15, 2019) [Special Guest Star]
- Episode 1x03: 2 MG CU BID (Oct 8, 2019) [Special Guest Star]
Perpetual Grace LTD (2019)
Guest starring as Wesley Walker
(10 episodes)
- Episode 1x10: A Sheriff in the Era of the Cartel (Aug 4, 2019) [Special Guest Star]
- Episode 1x09: The Elements of an Epiphany (Jul 28, 2019) [Special Guest Star]
- Episode 1x08: Fiveever (Jul 21, 2019) [Special Guest Star]
- Episode 1x07: Bull Face (Jul 14, 2019) [Special Guest Star]
- Episode 1x06: When Doves Cry (Jul 7, 2019) [Special Guest Star]
- Episode 1x05: Wandering Left (Jun 30, 2019) [Special Guest Star]
- Episode 1x04: Felipe G. Usted. Almost First Mexican on the Moon. Part 2 (Jun 23, 2019) [Special Guest Star]
- Episode 1x03: Felipe G. Usted. Almost First Mexican on the Moon. Part 1 (Jun 16, 2019) [Special Guest Star]
- Episode 1x02: Orphan Comb Death Fight (Jun 9, 2019) [Special Guest Star]
- Episode 1x01: Eleven (Jun 2, 2019) [Special Guest Star]
Castle Rock (2018)
Guest starring as Dale Lacy
(4 episodes)
- Episode 1x10: Romans (Sep 12, 2018)
- Episode 1x05: Harvest (Aug 8, 2018)
- Episode 1x02: Habeas Corpus (Jul 25, 2018)
- Episode 1x01: Severance (Jul 25, 2018)
Mysteries of the Missing (2017)
Starring as Host
(8 episodes)
- Episode 1x08: Flight of Terror (Oct 14, 2017)
- Episode 1x07: Curse of the Bermuda Triangle (Oct 7, 2017)
- Episode 1x06: Lost Colony of Roanoke (Sep 30, 2017)
- Episode 1x05: Forbidden City of Gold (Sep 23, 2017)
- Episode 1x04: The Men Who Beat Alcatraz (Sep 16, 2017)
- Episode 1x03: Ghost Ship of the Desert (Sep 9, 2017)
- Episode 1x02: Atlantis: The Lost Evidence (Sep 2, 2017)
- Episode 1x01: Hunt for Flight MH370 (Aug 26, 2017)
The Blacklist: Redemption (2017)
Guest starring as Howard Hargrave
(7 episodes)
- Episode 1x08: Whitehall: Conclusion (Apr 13, 2017)
- Episode 1x07: Whitehall (Apr 6, 2017)
- Episode 1x06: Hostages (Mar 30, 2017)
- Episode 1x05: Borealis 301 (Mar 23, 2017)
- Episode 1x04: Operation Davenport (Mar 16, 2017)
- Episode 1x03: Independence, U.S.A. (Mar 9, 2017)
- Episode 1x01: Leland Bray (Feb 23, 2017)
Patriot (2015)
Starring as Tom Tavner
(18 episodes)
- Episode 2x08: Escape From Paris (Nov 9, 2018)
- Episode 2x07: Loaded (Nov 9, 2018)
- Episode 2x06: Fuck John Wayne (Nov 9, 2018)
- Episode 2x05: Army of Strangers (Nov 9, 2018)
- Episode 2x04: The Sword and the Hand (Nov 9, 2018)
- Episode 2x03: The Guns of Paris (Nov 9, 2018)
- Episode 2x02: The Vantasner Danger Meridian (Nov 9, 2018)
- Episode 2x01: American Dimes (Nov 9, 2018)
- Episode 1x10: Dead Serious Rick (Feb 24, 2017)
- Episode 1x09: Dick Cheney (Feb 24, 2017)
- Episode 1x08: L'Affaire Contre John Lakeman (Feb 24, 2017)
- Episode 1x07: Hello, Is Charlie There? (Feb 24, 2017)
- Episode 1x06: The Structural Dynamics of Flow (Feb 24, 2017)
- Episode 1x05: Un Monsieur Triste En Costume (Feb 24, 2017)
- Episode 1x04: John's To-Do List 5/18/12 (Feb 24, 2017)
- Episode 1x03: McMillan Man (Feb 24, 2017)
- Episode 1x02: C-19 (Feb 24, 2017)
- Episode 1x01: Milwaukee, America (Nov 5, 2015)
Secrets and Lies (2015)
Starring as John Warner
(8 episodes)
- Episode 2x10: The Truth (Dec 4, 2016)
- Episode 2x09: The Brother (Dec 4, 2016)
- Episode 2x08: The Racket (Nov 27, 2016)
- Episode 2x07: The Statement (Nov 13, 2016)
- Episode 2x04: The Detective (Oct 23, 2016)
- Episode 2x03: The Liar (Oct 16, 2016)
- Episode 2x02: The Husband (Oct 2, 2016)
- Episode 2x01: The Fall (Sep 25, 2016)
Gang Related (2014)
Starring as Sam Chapel
(7 episodes)
- Episode 1x07: Regreso Del Infierno (Jul 3, 2014)
- Episode 1x06: Entre Dos Tierras (Jun 26, 2014)
- Episode 1x05: Invierno Cayó (Jun 19, 2014)
- Episode 1x04: Perros (Jun 12, 2014)
- Episode 1x03: Pecados del Padre (Jun 5, 2014)
- Episode 1x02: Sangre por Sangre (May 29, 2014)
- Episode 1x01: Pilot (May 22, 2014)
The Arsenio Hall Show (2013)
Guest starring as Terry O'Quinn
- Episode 1x158: J.B. Smoove, Terry O'Quinn, DJ Rashida (May 21, 2014)
666 Park Avenue (2012)
Starring as Gavin Doran
(13 episodes)
- Episode 1x13: Lazarus: Part 1 (Jul 13, 2013)
- Episode 1x12: The Elysian Fields (Jul 6, 2013)
- Episode 1x11: Sins of the Fathers (Jun 29, 2013)
- Episode 1x10: The Comfort of Death (Jun 22, 2013)
- Episode 1x09: Hypnos (Dec 2, 2012)
- Episode 1x08: What Ever Happened to Baby Jane? (Nov 25, 2012)
- Episode 1x07: Downward Spiral (Nov 11, 2012)
- Episode 1x06: Diabolic (Nov 4, 2012)
- Episode 1x05: A Crowd of Demons (Oct 28, 2012)
- Episode 1x04: Hero Complex (Oct 21, 2012)
- Episode 1x03: The Dead Don't Stay Dead (Oct 14, 2012)
- Episode 1x02: Murmurations (Oct 7, 2012)
- Episode 1x01: Pilot (Sep 30, 2012)
Falling Skies (2011)
Guest starring as Arthur Manchester
(3 episodes)
- Episode 3x01: On Thin Ice (Jun 9, 2013)
- Episode 2x10: A More Perfect Union (Aug 19, 2012)
- Episode 2x09: The Price of Greatness (Aug 12, 2012)
Hawaii Five-0 (2010)
Guest starring as Joe White
(16 episodes)
- Episode 9x10: Pio Ke Kukui, Po'ele Ka Hale (Dec 7, 2018)
- Episode 8x24: Ka Lala Kaukonakona Haki 'ole I Ka Pa A Ka Makani Kona. (May 11, 2018)
- Episode 5x18: Pono Kaulike (Mar 6, 2015)
- Episode 5x13: La Po'ino (Jan 30, 2015)
- Episode 4x05: Kupu'eu (Oct 25, 2013)
- Episode 3x20: Olelo Pa'a (Apr 15, 2013)
- Episode 2x23: Ua Hala (May 14, 2012)
- Episode 2x14: Pu'olo (Jan 16, 2012)
- Episode 2x13: Ka Ho'oponopono (Jan 2, 2012)
- Episode 2x12: Alaheo Pau'ole (Dec 12, 2011)
- Episode 2x11: Pahele (Dec 5, 2011)
- Episode 2x10: Ki'lua (Nov 21, 2011)
- Episode 2x06: Ka Hakaka Maika'i (Oct 24, 2011)
- Episode 2x04: Mea Makamae (Oct 10, 2011)
- Episode 2x03: Kame'e (Oct 3, 2011)
- Episode 2x01: Ha'i'ole (Sep 19, 2011)
Masters of Science Fiction (2007)
Guest starring as Albert Skynner
- Episode 1x02: The Awakening (Aug 11, 2007)
Lost (2004)
Starring as John Locke
(94 episodes)
- Episode 6x18: The End (2) (May 23, 2010)
- Episode 6x17: The End (1) (May 23, 2010)
- Episode 6x16: What They Died For (May 18, 2010)
- Episode 6x14: The Candidate (May 4, 2010)
- Episode 6x13: The Last Recruit (Apr 20, 2010)
- Episode 6x12: Everybody Loves Hugo (Apr 13, 2010)
- Episode 6x10: The Package (Mar 30, 2010)
- Episode 6x09: Ab Aeterno (Mar 23, 2010)
- Episode 6x08: Recon (Mar 16, 2010)
- Episode 6x07: Dr. Linus (Mar 9, 2010)
- Episode 6x06: Sundown (Mar 2, 2010)
- Episode 6x05: Lighthouse (Feb 23, 2010)
- Episode 6x04: The Substitute (Feb 16, 2010)
- Episode 6x01: LA X (1) (Feb 2, 2010)
- Episode 5x16: The Incident (1) (May 13, 2009)
- Episode 5x15: Follow the Leader (May 6, 2009)
- Episode 5x12: Dead is Dead (Apr 8, 2009)
- Episode 5x11: Whatever Happened, Happened (Apr 1, 2009)
- Episode 5x07: The Life and Death of Jeremy Bentham (Feb 25, 2009)
- Episode 5x06: 316 (Feb 18, 2009)
- Episode 5x05: This Place is Death (Feb 11, 2009)
- Episode 5x04: The Little Prince (Feb 4, 2009)
- Episode 5x03: Jughead (Jan 28, 2009)
- Episode 5x01: Because You Left (Jan 21, 2009)
- Episode 4x13: There's No Place Like Home (2) (May 29, 2008)
- Episode 4x12: There's No Place Like Home (1) (May 15, 2008)
- Episode 4x11: Cabin Fever (May 8, 2008)
- Episode 4x09: The Shape of Things to Come (Apr 24, 2008)
- Episode 4x08: Meet Kevin Johnson (Mar 20, 2008)
- Episode 4x06: The Other Woman (Mar 6, 2008)
- Episode 4x04: Eggtown (Feb 21, 2008)
- Episode 4x03: The Economist (Feb 14, 2008)
- Episode 4x02: Confirmed Dead (Feb 7, 2008)
- Episode 4x01: The Beginning of the End (Jan 31, 2008)
- Episode 3x22: Through the Looking Glass (1) (May 23, 2007)
- Episode 3x20: The Man Behind the Curtain (May 9, 2007)
- Episode 3x19: The Brig (May 2, 2007)
- Episode 3x15: Left Behind (Apr 4, 2007)
- Episode 3x14: Exposé (Mar 28, 2007)
- Episode 3x13: The Man from Tallahassee (Mar 21, 2007)
- Episode 3x12: Par Avion (Mar 14, 2007)
- Episode 3x11: Enter 77 (Mar 7, 2007)
- Episode 3x10: Tricia Tanaka is Dead (Feb 28, 2007)
- Episode 3x08: Flashes Before Your Eyes (Feb 14, 2007)
- Episode 3x06: I Do (Nov 8, 2006)
- Episode 3x05: The Cost of Living (Nov 1, 2006)
- Episode 3x03: Further Instructions (Oct 18, 2006)
- Episode 2x24: Live Together, Die Alone (2) (May 24, 2006)
- Episode 2x23: Live Together, Die Alone (1) (May 24, 2006)
- Episode 2x22: Three Minutes (May 17, 2006)
- Episode 2x21: ? (May 10, 2006)
- Episode 2x20: Two for the Road (May 3, 2006)
- Episode 2x19: S.O.S. (Apr 12, 2006)
- Episode 2x18: Dave (Apr 5, 2006)
- Episode 2x17: Lockdown (Mar 29, 2006)
- Episode 2x16: The Whole Truth (Mar 22, 2006)
- Episode 2x15: Maternity Leave (Mar 1, 2006)
- Episode 2x14: One of Them (Feb 15, 2006)
- Episode 2x13: The Long Con (Feb 8, 2006)
- Episode 2x12: Fire + Water (Jan 25, 2006)
- Episode 2x11: The Hunting Party (Jan 18, 2006)
- Episode 2x10: The 23rd Psalm (Jan 11, 2006)
- Episode 2x09: What Kate Did (Nov 30, 2005)
- Episode 2x08: Collision (Nov 23, 2005)
- Episode 2x06: Abandoned (Nov 9, 2005)
- Episode 2x05: ...And Found (Oct 19, 2005)
- Episode 2x04: Everybody Hates Hugo (Oct 12, 2005)
- Episode 2x03: Orientation (Oct 5, 2005)
- Episode 2x02: Adrift (Sep 28, 2005)
- Episode 2x01: Man of Science, Man of Faith (Sep 21, 2005)
- Episode 1x25: Exodus (3) (May 25, 2005)
- Episode 1x24: Exodus (2) (May 25, 2005)
- Episode 1x23: Exodus (1) (May 18, 2005)
- Episode 1x22: Born to Run (May 11, 2005)
- Episode 1x21: The Greater Good (May 4, 2005)
- Episode 1x19: Deus ex Machina (Mar 30, 2005)
- Episode 1x18: Numbers (Mar 2, 2005)
- Episode 1x17: ...In Translation (Feb 23, 2005)
- Episode 1x16: Outlaws (Feb 16, 2005)
- Episode 1x15: Homecoming (Feb 9, 2005)
- Episode 1x14: Special (Jan 19, 2005)
- Episode 1x13: Hearts and Minds (Jan 12, 2005)
- Episode 1x12: Whatever the Case May Be (Jan 5, 2005)
- Episode 1x11: All the Best Cowboys Have Daddy Issues (Dec 8, 2004)
- Episode 1x10: Raised by Another (Dec 1, 2004)
- Episode 1x09: Solitary (Nov 17, 2004)
- Episode 1x08: Confidence Man (Nov 10, 2004)
- Episode 1x07: The Moth (Nov 3, 2004)
- Episode 1x06: House of the Rising Sun (Oct 27, 2004)
- Episode 1x05: White Rabbit (Oct 20, 2004)
- Episode 1x04: Walkabout (Oct 13, 2004)
- Episode 1x03: Tabula Rasa (Oct 6, 2004)
- Episode 1x02: Pilot (2) (Sep 29, 2004)
- Episode 1x01: Pilot (1) (Sep 22, 2004)
Alias (2001)
Guest starring as Asst Director Kendall
(18 episodes)
- Episode 3x11: Full Disclosure (Jan 11, 2004) [Special Guest Star]
- Episode 2x22: The Telling (May 4, 2003)
- Episode 2x21: Second Double (May 4, 2003) [Special Guest Star]
- Episode 2x18: Truth Takes Time (Mar 16, 2003)
- Episode 2x17: A Dark Turn (Mar 2, 2003)
- Episode 2x16: Firebomb (Feb 23, 2003)
- Episode 2x15: A Free Agent (Feb 9, 2003)
- Episode 2x14: Double Agent (Feb 2, 2003) [Special Guest Star]
- Episode 2x13: Phase One (Jan 26, 2003) [Special Guest Star]
- Episode 2x12: The Getaway (Jan 12, 2003)
- Episode 2x11: A Higher Echelon (Jan 5, 2003)
- Episode 2x09: Passage (Part 2) (Dec 8, 2002)
- Episode 2x08: Passage (Part 1) (Dec 1, 2002)
- Episode 2x07: The Counteragent (Nov 17, 2002)
- Episode 2x04: Dead Drop (Oct 20, 2002)
- Episode 2x03: Cipher (Oct 13, 2002)
- Episode 2x02: Trust Me (Oct 6, 2002)
- Episode 1x17: Q&A (Mar 17, 2002) [Special Guest Star]
Harsh Realm (1999)
Starring as General Omar Santiago
(8 episodes)
- Episode 1x09: Camera Obscura (May 19, 2000)
- Episode 1x08: Cincinnati (May 12, 2000)
- Episode 1x06: Three Percenters (Apr 28, 2000)
- Episode 1x05: Reunion (Apr 21, 2000)
- Episode 1x04: Kein Ausgang (Apr 14, 2000)
- Episode 1x03: Inga Fossa (Oct 22, 1999)
- Episode 1x02: Leviathan (Oct 15, 1999)
- Episode 1x01: Pilot (Oct 8, 1999)
Roswell (1999)
Guest starring as Carl
- Episode 3x02: Michael, The Guys and The Great Snapple Caper (Oct 16, 2001)
The West Wing (1999)
Guest starring as General Nicholas Alexander
(7 episodes)
- Episode 6x02: The Birnam Wood (Oct 27, 2004)
- Episode 6x01: NSF Thurmont (Oct 20, 2004)
- Episode 5x21: Gaza (May 12, 2004)
- Episode 5x14: An Khe (Feb 18, 2004)
- Episode 5x13: The Warfare of Genghis Khan (Feb 11, 2004)
- Episode 5x10: The Stormy Present (Jan 7, 2004)
- Episode 5x06: Disaster Relief (Nov 5, 2003)
Millennium (1996)
Starring as Peter Watts
(41 episodes)
- Episode 3x22: Goodbye to All That (May 21, 1999)
- Episode 3x21: Via Dolorosa (May 14, 1999)
- Episode 3x18: Bardo Thodol (Apr 23, 1999)
- Episode 3x15: Forcing the End (Mar 19, 1999)
- Episode 3x14: Matryoshka (Feb 19, 1999)
- Episode 3x12: The Sound of Snow (Feb 5, 1999)
- Episode 3x11: Collateral Damage (Jan 22, 1999)
- Episode 3x06: Skull and Bones (Nov 6, 1998)
- Episode 3x02: Exegesis (Oct 9, 1998)
- Episode 2x23: The Time is Now (May 15, 1998)
- Episode 2x22: The Fourth Horseman (May 8, 1998)
- Episode 2x20: A Room with No View (Apr 24, 1998)
- Episode 2x19: Anamnesis (Apr 17, 1998)
- Episode 2x18: In Arcadia Ego (Apr 3, 1998)
- Episode 2x17: Siren (Mar 20, 1998)
- Episode 2x16: Roosters (Mar 13, 1998)
- Episode 2x15: Owls (Mar 6, 1998)
- Episode 2x14: The Pest House (Feb 27, 1998)
- Episode 2x13: The Mikado (Feb 6, 1998)
- Episode 2x12: Luminary (Jan 23, 1998)
- Episode 2x10: Midnight of the Century (Dec 19, 1997)
- Episode 2x09: Jose Chung's Doomsday Defense (Nov 21, 1997)
- Episode 2x08: The Hand of Saint Sebastian (Nov 14, 1997)
- Episode 2x07: 19:19 (Nov 7, 1997)
- Episode 2x04: Monster (Oct 17, 1997)
- Episode 2x03: Sense and Antisense (Oct 3, 1997)
- Episode 2x02: Beware of the Dog (Sep 26, 1997)
- Episode 2x01: The Beginning and the End (Sep 19, 1997)
- Episode 1x21: Maranatha (May 9, 1997)
- Episode 1x20: Broken World (May 2, 1997)
- Episode 1x19: Powers, Principalities, Thrones and Dominions (Apr 25, 1997)
- Episode 1x18: Lamentation (Apr 18, 1997)
- Episode 1x17: Walkabout (Mar 28, 1997)
- Episode 1x15: Sacrament (Feb 21, 1997)
- Episode 1x13: Force Majeure (Feb 7, 1997)
- Episode 1x12: Loin Like a Hunting Flame (Jan 31, 1997)
- Episode 1x10: The Wild and the Innocent (Jan 10, 1997)
- Episode 1x07: Blood Relatives (Dec 6, 1996)
- Episode 1x05: 522666 (Nov 22, 1996)
- Episode 1x02: Gehenna (Nov 1, 1996)
- Episode 1x01: Pilot (Oct 25, 1996)
JAG (1995)
Starring as Rear Admiral Thomas "CAG" Boone, USN
(3 episodes)
- Episode 6x07: A Separate Peace (1) (Nov 21, 2000)
- Episode 1x02: A New Life (2) (Sep 23, 1995)
- Episode 1x01: A New Life (1) (Sep 23, 1995)
Guest starring as Rear Admiral Thomas "CAG" Boone, USN
(2 episodes)
- Episode 7x13: Code of Conduct (Jan 15, 2002) [Special Guest Star]
- Episode 2x05: Crossing the Line (Jan 31, 1997)
The X-Files (1993)
Guest starring as Lieutenant Brian Tillman
- Episode 2x12: Aubrey (Jan 6, 1995)
Guest starring as Shadow Man
- Episode 9x06: Trust No 1 (Jan 6, 2002) [Special Guest Star]
Tales from the Crypt (1989)
Guest starring as Inspector Martin Zeller
- Episode 6x06: The Bribe (Nov 23, 1994)
Star Trek: The Next Generation (1987)
Guest starring as Admiral Eric Pressman
- Episode 7x12: The Pegasus (Jan 10, 1994)
Moonlighting (1985)
Guest starring as Bryant Wilbourne
- Episode 4x03: Take a Left at the Altar (Oct 13, 1987)
Miami Vice (1984)
Guest starring as Richard Cain
- Episode 1x09: Give a Little, Take a Little (Dec 7, 1984)
Remington Steele (1982)
Guest starring as Chuck McBride
- Episode 4x08: Coffee, Tea or Steele (Dec 10, 1985)