Cast & creator
Terry O'Quinn
Best known for NCIS, The View, Hawaii Five-0
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).
Also known as: Terence Quinn, Terrance Quinn , Terrance K. O'Quinn , Terrance O'Quinn, Terry O’Quinn
75
film credits
54
television credits
129
1951–2026 · acting roles
6.6
average across scored titles
Signature credits
Known for
Across film & television
Filmography (129)
Showing 129 of 129 credits
NCIS
Will Ryan
2003
The View
Self
1997
Hawaii Five-0
Joe White
2010
Law & Order: Criminal Intent
Gordon Buchanan
2001
Jimmy Kimmel Live!
Self
2003
JAG
Admiral Thomas Boone
1995JAG
Thomas Boone
1995
The X-Files
Lt. Brian Tillman
1993The X-Files
Shadow Man
1993
The West Wing
Nicholas Alexander
1999
Lost
John Locke
2004
Star Trek: The Next Generation
Admiral Eric Pressman
1987
Diagnosis: Murder
Ronald Trent
1993
FBI: Most Wanted
Byron LaCroix
2020
Primetime
John Locke (archive footage) (uncredited)
2026
L.A. Law
Nick Moats
1986
Miami Vice
Richard Cain
1984Good Day Live
Self
2001
Matlock
1986
Homicide: Life on the Street
Bailey Lafeld
1993
The Twilight Zone
Curt Lockridge (segment "Chameleon")
1985
Jake and the Fatman
Vincent Novak
1987
Tales of the Unexpected
Cop
1979
Remington Steele
Chuck McBride
1982
Millennium
Peter Watts
1996
Moonlighting
Bryant Wilbourne
1985
Tales from the Crypt
Inspector Martin Zeller
1989
Resident Alien
Peter Bach
2021Resident Alien
Peter Bach (voice)
2021
Roswell
Carl
1999
Castle Rock
Dale Lacy
2018
Secrets and Lies
John Warner
2015
Primal Fear
Yancy
1996
The Walking Dead: The Ones Who Live
Major General Johnathan Beale
2024
Alias
Kendall
2001
Earth 2
Reilly
1994
Patriot
Tom Tavner
2015
Old School
Goldberg (uncredited)
2003
Tombstone
Mayor Clum
1993
LOST: Circle
John Locke
2023
First Monday
2002
The X-Files
Michaud
1998
A Year in the Life
Keith
1987
Emergence
Richard Kindred
2019
The Client
Bert Halliwell
1995
The Blacklist: Redemption
Howard Hargrave
2017
PIECES OF HER
Martin Queller
2022
Perpetual Grace LTD
Wesley Walker
2019
Ultra City Smiths
Captain Krieger (voice)
2021
Young Guns
Alex McSween
1988
666 Park Avenue
Gavin Doran
2012
Masters of Science Fiction
2007
Heaven's Gate
Captain Minardi
1980
The Rocketeer
Howard Hughes
1991
Full Circle
Jimmy Parerra
2013
Silver Bullet
Sheriff Joe Haller
1985
All the Right Moves
Freeman Smith
1983
Hallmark Hall of Fame
Michael Keddington's Abusive Father
1951
Harsh Realm
1999
Gang Related
Sam Chapel
2014
The Stepfather
Jerry Blake
1987
Blind Fury
Frank Devereaux
1989
Breast Men
Hersch Lawyer
1997
Places in the Heart
Buddy Kelsey
1984
Unsung Hero
Grandpa James
2024
American Outlaws
Rollin H. Parker
2001
Black Widow
Bruce
1987
Ring of Fire
Oliver Booth
2012
Shadow Conspiracy
Frank Ridell
1997
Stepfather 2
Dr. Gene Clifford / Jerry Blake
1989
The Cutting Edge
Jack Moseley
1992
Mischief
Claude Harbrough
1985
Ghosts of Mississippi
Judge Hilburn
1996
Mysteries of the Missing
Self - Host
2017
At Mother's Request
Joel Campbell
1987
Son of the Morning Star
Gen. Alfred Terry
1991
Amityville: A New Generation
Detective Clark
1993
SpaceCamp
Launch Director
1986
Company Business
Colonel Pierce Grissom
1991
Mrs. Soffel
Detective Buck McGovern
1984
A Friend to Die For
Ed Saxe
1994
Shoot First: A Cop's Vengeance
Sergeant Nicholas
1991
Without a Trace
Parent
1983
New Life
Dr. Philip Sumrall
2016
Lipstick Camera
Raymond Miller
1994
Pin
Dr. Frank Linden
1988
The Forgotten One
Bob Anderson
1989
Getting LOST
Self
2024
Perry Mason: The Case of the Desperate Deception
Curt Mitchell
1990
Heart of a Child
Gordon Holc
1994
Don't Talk to Strangers
Bonner
1994
Murder in a Small Town
Sidney Lassiter
1999
Kaleidoscope
Henry
1990
Taken from Me: The Tiffany Rubin Story
Mark Miller
2011
Christmas Sail
Dennis
2021
MacShayne: Winner Takes All
Danny Leggett
1994
The Last to Go
Daniel
1991
Jacobo Timerman: Prisoner Without a Name, Cell Without a Number
Colonel Thomas Rhodes
1983
Guts and Glory: The Rise and Fall of Oliver North
Aaron Sykes
1989
Roe vs. Wade
Jay Floyd
1989
Rated X
J.R. Mitchell
2000
The Locket
Casey Keddington
2002
On the Edge of Innocence
David Walker
1997
F.D.R.: The Last Year
James Roosevelt
1980
An Early Frost
Dr. Redding
1985
Wild Card
Barlow
1992
Justice in a Small Town
Harris Wiley
1994
WW3
Eric Farrell
2001
When the Time Comes
Wes Travis
1987
My Stepson, My Lover
Richard Cory
1997
Trial: The Price of Passion
Bob Altschuler
1992
Stranger on My Land
Connie Priest
1988
Ray Alexander: A Menu for Murder
Frank Darnell
1995
Phenomenon II
2003
Town Diary
2002
Hometown Legend
Buster Schuler
2002
Blood Oath
Major Beckett
1990
Women of Valor
Maj. Tom Patterson
1986
Semper Fi
Cliff's Father
2001
Between Two Women
Dr. Wallace
1986
Shadow Warriors
Dr. Connors
1995
Deliver Them from Evil: The Taking of Alta View
Sergeant Don Bell
1992
My Samurai
1992
Right to Kill?
Jim Barrett
1985
Visions of Murder
Adm. Truman Hager
1993
Born Too Soon
Dr. Friedman
1993
The Good Fight
Henry Cragin
1992
Sexual Advances
Cliff Ripley
1992
The Jogger
Jerry
1988