~Magasság: 187 cm

   ~Igazi neve: Terrance Quinn

   ~Felesége Lori, két gyerekük van

Filmjei:

• Lost (2004) - John Locke
• Old School (2003) - Goldberg
• The Locket (2002) - Casey Keddington
• Hometown Legend (2002) - Buster Schuler
• American Outlaws (2001) - Rollin H. Parker, Rain's Gopher
•  WW3 (2001)
• Semper Fi (2001) - Cliff's father
• Rated X (2000) - J.R. Mitchell
• Harsh Realm (1999) - General Omar Santiago
• Murder in a Small Town (1999) - Sidney Lassiter
• The X Files (1998) - Darius Michaud
• Breast Men (1997) - Hersch Lawyer
• My Stepson, My Lover (1997) - Richard Cory
• On the Edge of Innocence (1997)
• Shadow Conspiracy (1997) - Frank Ridell
• Shadow Warriors (1996) - Dr. Connors
• Ghosts of Mississippi (1996) - Judge Hilburn
• Millennium (1996) - Peter Watts
• Primal Fear (1996) - Bud Yancy
• JAG (1995) - Capt. Thomas Boone
• Ray Alexander: A Menu for Murder (1995) - Frank Darnell
• A Friend to Die For (1994) - Ed Saxe
• Justice in a Small Town (1994) - Harris Wiley
• Don't Talk to Strangers (1994) - Bonner
• Heart of a Child (1994) - Gordon Holc
• Lipstick Camera (1994) - Raymond Miller
• MacShayne: Winner Takes All (1994) - Danny Leggett
• Tombstone (1993) - Mayor John Clum
• Amityville: A New Generation (1993) (V) - Detective Clark
• Visions of Murder (1993) - Admiral Truman Hager
• Born Too Soon (1993) - Dr. Friedman
• My Samurai (1992) - James McCrea
• The Good Fight (1992) - Henry
• Wild Card (1992) - Barlow
• Sexual Advances (1992) - Cliff Ripley
• Trial: The Price of Passion (1992) - Bob Altschuler
• Deliver Them from Evil: The Taking of Alta View (1992) - Sergeant Don Bell
• The Cutting Edge (1992) - Jack Moseley
• Company Business (1991) - Colonel Pierce Grissom
• The Rocketeer (1991) - Howard Hughes
• Shoot First: A Cop's Vengeance (1991) - Sergeant Nicholas ... aka Vigilante Cop
• Son of the Morning Star (1991) - Gen. Alfred Terry
• The Last to Go (1991) - Daniel
• The Forgotten One (1990) - Bob Anderson
• Kaleidoscope (1990) - Henry ... aka Danielle Steel's 'Kaleidoscope'
• Prisoners of the Sun (1990) - Maj. Beckett ... aka Blood Oath (Australia)
• Perry Mason: The Case of the Desperate Deception (1990) - Curt Mitchell
• Stepfather II (1989) - Dr. Gene Clifford/The Stepfather
• Blind Fury (1989) (as Terrance O'Quinn) - Frank Devereaux
• Roe vs. Wade (1989) - Jay Floyd
• Guts and Glory: The Rise and Fall of Oliver North (1989) - Aaron Sykes
• Jogger (1988)
• Pin (1988) - Dr. Linden
• Young Guns (1988) - Alex McSween
• Stranger on My Land (1988) - Connie Priest
• When the Time Comes (1987) - Wes Travis
• Black Widow (1987) - Bruce, Alex's Boss
• The Stepfather (1987) - Jerry Blake/The Stepfather
• At Mother's Request (1987) - Joel Campbell
• Women of Valor (1986) - Maj. Tom Patterson
• SpaceCamp (1986) - Launch Director
• Between Two Women (1986) - Dr. Wallace
• Mischief (1985) - Claude Harbrough
• Right to Kill? (1985) - Jim Barrett
• An Early Frost (1985) - Dr. Redding
• Silver Bullet (1985) - Sheriff Joe Haller
• Mrs. Soffel (1984) - Detective Buck McGovern
• Places in the Heart (1984) - Buddy Kelsey
• All the Right Moves (1983) (as Terrance O'Quinn) - Freeman Smith
• Without a Trace (1983) - Parent
• The Doctors (1963) - Dr. Jerry Dancy (1981)
• Heaven's Gate (1980) - Capt. Minardi
• F.D.R.: The Last Year (1980) - James Roosevelt

~Old School, The X-Files: Fight the Future, Primal Fear, Ghosts of Mississippi, Tombstone, Blind Fury, Young Guns, Black Widow, Heaven's Gate and Places in the Heart, Alias
 

A magyar tévénézők számára Az elnök embereiből, az Aliasból és a Jagből

ismert színész számos sorozatban és tévéfilmben játszott már.
A filmezés mellett színpadi színészként is sikeres, a Broadway színpadainak rendszeres vendége.

Születési hely: Newberry, Michigan, USA
Születési idő: 1952. július 15.