Gregory Harrison

Biography

Gregory Harrison was born on May 31, 1950 in Avalon, Catalina Island, California, USA. He is an actor and producer, known for Trapper John, M.D. (1979), Picnic (1986) and Razorback (1984). He has been married to Randi Oakes since May 3, 1981. They have four children.

Known For

Law & Order: Special Victims Unit

Nathan Speer

NCIS

Roland Ebbakey

9-1-1

Phillip Buckley

Castle

Danny Valentine

One Tree Hill

Paul Norris

The Mike Douglas Show

Self - Co-Host

MAS*H

Lt. Tony Baker

Psych

Ted Lomax

Filmography

Year	Movie	Role
2025	Signed, Sealed, Delivered: To The Moon And Back	Joe O'Toole
2024	Signed, Sealed, Delivered: A Tale of Three Letters	Joe O'Toole
2022	Jimmy and Carolyn
2021	The Nine Kittens of Christmas	Chief Sam
2021	Signed, Sealed, Delivered: The Vows We Have Made	Joe O’Toole
2021	Sweet Carolina	Pete
2020	The Vanished	Dr. Bradley
2019	Love, Fall & Order	Hank Hart
2018	Signed, Sealed, Delivered: To the Altar	Joe O'Toole
2017	Fair Haven	Doctor Gallagher
2017	Signed, Sealed, Delivered: Higher Ground	Joe O’Toole
2017	Signed, Sealed, Delivered: Home Again	Joe O'Toole
2016	Signed, Sealed, Delivered: Lost Without You	Joe O’Toole
2016	My Christmas Love	Tom Baker
2016	Signed, Sealed, Delivered: One in a Million	Joe O'Toole
2015	Cloudy with a Chance of Love	Grant
2015	Signed, Sealed, Delivered: Truth Be Told	Joe O'Toole
2014	The M Word
2014	The Nine Lives of Christmas	Chief Sam
2013	After All These Years	David
2012	Undercover Bridesmaid	Mr. Thompson
2009	Give 'em Hell, Malone	Whitmore
2009	Au Pair 3: Adventure in Paradise	Oliver Caldwell
2009	Love n' Dancing
2008	Not Quite Hollywood	Self
2003	Hollywood's Magical Island: Catalina
2001	Au Pair II	Oliver Caldwell
2000	First Target	President Jonathan Hayes
1999	Au Pair	Oliver Caldwell
1999	First Daughter	President Jonathan Hayes
1999	Murder at 75 Birch	Rick Todson
1998	Air Bud: Golden Receiver	Dr. Patrick Sullivan
1998	Running Wild	Matt Robinson
1997	When Secrets Kill
1996	Summer of Fear	Mr. Marshall
1996	It's My Party	Brandon Theis
1995	Nothing Lasts Forever	Dr. Benjamin 'Ben' Wallace
1995	Hard Evidence	Trent Turner
1995	A Dangerous Affair	Robert Kenzer
1994	A Christmas Romance	Brian Harding
1994	Mortal Fear	Philip Montgomery
1994	Lies of the Heart: The Story of Laurie Kellogg	Bruce Kellogg
1993	Caught in the Act	Scott McNally
1993	Cadillac Girls	Sam
1993	Sudden Fury	Tom Kelley
1992	Breaking the Silence	Paul Danner
1992	Split Images	Robbie Daniels
1992	Body Chemistry II: Voice of a Stranger	Dan
1992	Duplicates	Bob Boxletter
1991	Bare Essentials	William 'Bill' Buzell owner of Luhana
1990	Angel of Death	Gary Nicholson
1990	Night of 100 Stars III	Self
1990	Dangerous Pursuit	John
1988	Hot Paint	Willie
1988	Red River	Cherry Valance
1987	North Shore	Chandler
1987	The Nativity	Joseph (voice)
1987	Happy 100th Birthday, Hollywood	Self
1986	Oceans of Fire	Ben Laforche
1986	Picnic	Hal Carter
1985	Seduced	Mike Riordan
1985	Night of 100 Stars II	Self
1984	Razorback	Carl Winters
1983	The Hasty Heart	Sgt. Lachlen McLachlen
1983	The Fighter	Merle Banks
1981	For Ladies Only	John Phillips
1980	The Women's Room	Ben Volper
1980	Kraft Salutes Disneyland's 25th Anniversary	Self
1980	Enola Gay: The Men, the Mission, the Atomic Bomb	Capt. Bob Lewis
1979	The Best Place to Be	Rick Jawlosky
1977	The Gathering	Bud Jr.
1977	Fraternity Row	Zac
1975	Trilogy of Terror	Arthur Moore
1975	Jim, the World's Greatest	Jim Nolan
1973	The Harrad Experiment	Student (uncredited)

Year	TV Show	Role
2018	9-1-1	Phillip Buckley
2016	Chesapeake Shores	Thomas O'Brien
2016	American Housewife	Dan
2014	Reckless	Dec Fortnum
2011	Ringer
2011	Body of Proof	Dr. Cameron Fischer
2010	Rizzoli & Isles	Ron Hanson
2010	Hot in Cleveland	Dave
2009	Drop Dead Diva	Brandon Tharpe
2009	Maneater	Teddy Alpert
2009	Castle	Danny Valentine
2009	The Middle	Bennett Brooks
2006	Psych	Ted Lomax
2005	Reunion
2004	Joey	Dean
2003	Miracles	Sheriff Ed Prescott
2003	One Tree Hill	Paul Norris
2003	NCIS	Roland Ebbakey
2000	Ed	Nick Stanton
2000	Strong Medicine	Dr. Randolf Kilner
1999	Judging Amy	Tom Gillette
1999	Law & Order: Special Victims Unit	Nathan Speer
1999	Safe Harbor	John Loring
1996	Dark Skies	Old John Loengard
1995	500 Nations
1995	New York News	Jack Reilly
1995	The Outer Limits	Dr. Larry Chambers
1995	Nothing Lasts Forever	Dr. Benjamin 'Ben' Wallace
1994	Touched by an Angel	Pete Taylor
1994	Touched by an Angel	Richard
1994	Touched by an Angel	Don Costello
1990	The Family Man	Jack Taylor
1986	Pee-wee's Playhouse	Conky 2000 (voice) / Knucklehead (voice)
1986	Fresno	Torch
1981	Falcon Crest	Michael Sharpe
1979	Trapper John, M.D.	George Alonzo 'Gonzo' Gates
1978	Centennial	Levi Zendt
1977	Logan's Run	Logan
1976	Battle of the Network Stars
1972	MAS*H	Lt. Tony Baker
1961	The Mike Douglas Show	Self - Co-Host

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