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
2006
NCIS
2015
The Mike Douglas Show
1980
Castle
2015
9-1-1
2021
One Tree Hill
2009
The Outer Limits
1998
The Middle
2017
Psych
2013
Rizzoli & Isles
2015
M*A*S*H
1976
Touched by an Angel
1995

FILMOGRAPHY

All
Movies
TV
Acting
119
Directing
2
Producing
5
2025
Signed, Sealed, Delivered: To the Moon and Back
as Joe O'Toole
2024
Signed, Sealed, Delivered: A Tale of Three Letters
as Joe O'Toole
2022
Jimmy and Carolyn
2021
The Nine Kittens of Christmas
as Chief Sam
2021
Signed, Sealed, Delivered: The Vows We Have Made
as Joe O’Toole
2021
Sweet Carolina
as Pete
2021
9-1-1
as Phillip Buckley
2020
The Vanished
as Dr. Bradley
2019
Love, Fall & Order
as Hank Hart
2018
Signed, Sealed, Delivered: To the Altar
as Joe O'Toole
2018
American Housewife
as Dan
2017
Fair Haven
as Doctor Gallagher
2017
Signed, Sealed, Delivered: Higher Ground
as Joe O’Toole
2017
Signed, Sealed, Delivered: Home Again
as Joe O'Toole
2017
The Middle
as Bennett Brooks
2017
Chesapeake Shores
as Thomas O'Brien
2016
Signed, Sealed, Delivered: Lost Without You
as Joe O’Toole
2016
My Christmas Love
as Tom Baker
2016
Signed, Sealed, Delivered: One in a Million
as Joe O'Toole
2015
Cloudy with a Chance of Love
as Grant
2015
Signed, Sealed, Delivered: Truth Be Told
as Joe O'Toole
2015
Castle
as Danny Valentine
2015
NCIS
as Roland Ebbakey
2015
Rizzoli & Isles
as Ron Hanson
2014
The M Word
2014
The Nine Lives of Christmas
as Chief Sam
2014
Reckless
as Dec Fortnum
2013
After All These Years
as David
2013
Psych
as Ted Lomax
2012
Undercover Bridesmaid
as Mr. Thompson
2012
Ringer
as Tim Arbogast
2011
Body of Proof
as Dr. Cameron Fischer
2011
Hot in Cleveland
as Dave
2010
Accidental Icon: The Real Gidget Story
2009
Give 'em Hell, Malone
as Whitmore
2009
Au Pair 3: Adventure in Paradise
as Oliver Caldwell
2009
Love n' Dancing
as Carl
2009
Drop Dead Diva
as Brandon Tharpe
2009
Maneater
as Teddy Alpert
2009
One Tree Hill
as Paul Norris
2008
Not Quite Hollywood
as Self
2006
Law & Order: Special Victims Unit
as Nathan Speer
2005
Reunion
2005
Joey
as Dean
2003
Hollywood's Magical Island: Catalina
2003
Miracles
as Sheriff Ed Prescott
2002
Strong Medicine
as Dr. Randolf Kilner
2002
Touched by an Angel
as Don Costello
2001
Au Pair II
as Oliver Caldwell
2000
First Target
as President Jonathan Hayes
2000
Judging Amy
as Tom Gillette
2000
Ed
as Nick Stanton
1999
Au Pair
as Oliver Caldwell
1999
First Daughter
as President Jonathan Hayes
1999
Murder at 75 Birch
as Rick Todson
1999
Safe Harbor
as John Loring
1998
Air Bud: Golden Receiver
as Dr. Patrick Sullivan
1998
Running Wild
as Matt Robinson
1998
The Outer Limits
as Dr. Larry Chambers
1998
Touched by an Angel
as Richard
1997
When Secrets Kill
1996
Summer of Fear
as Mr. Marshall
1996
It's My Party
as Brandon Theis
1996
Dark Skies
as Old John Loengard (voice) (uncredited)
1996
Dark Skies
as Old John Loengard
1995
Nothing Lasts Forever
as Dr. Benjamin 'Ben' Wallace
1995
Hard Evidence
as Trent Turner
1995
A Dangerous Affair
as Robert Kenzer
1995
Touched by an Angel
as Pete Taylor
1995
500 Nations
1995
New York News
as Jack Reilly
1995
Nothing Lasts Forever
as Dr. Benjamin 'Ben' Wallace
1994
A Christmas Romance
as Brian Harding
1994
Mortal Fear
as Philip Montgomery
1994
Lies of the Heart: The Story of Laurie Kellogg
as Bruce Kellogg
1993
Caught in the Act
as Scott McNally
1993
Cadillac Girls
as Sam
1993
Sudden Fury
as Tom Kelley
1992
Breaking the Silence
as Paul Danner
1992
Split Images
as Robbie Daniels
1992
Body Chemistry II: The Voice of a Stranger
as Dan
1992
Duplicates
as Bob Boxletter
1991
Bare Essentials
as William 'Bill' Buzell owner of Luhana
1990
Angel of Death
as Gary Nicholson
1990
Night of 100 Stars III
as Self
1990
Dangerous Pursuit
as John
1990
The Family Man
as Jack Taylor
1989
Friend to Friend: Armenian Earthquake Relief
as Self
1989
Falcon Crest
as Michael Sharpe
1988
Hot Paint
as Willie
1988
Red River
as Cherry Valance
1987
North Shore
as Chandler
1987
Happy 100th Birthday, Hollywood
as Self
1986
Oceans of Fire
as Ben Laforche
1986
The Nativity
as Joseph (voice)
1986
Picnic
as Hal Carter
1986
Pee-wee's Playhouse
as Conky 2000 (voice) / Knucklehead (voice)
1986
Fresno
as Torch
1985
Seduced
as Mike Riordan
1985
Night of 100 Stars II
as Self
1984
Razorback
as Carl Winters
1983
The Hasty Heart
as Sgt. Lachlen McLachlen
1983
The Fighter
as Merle Banks
1981
For Ladies Only
as John Phillips
1980
The Women's Room
as Ben Volper
1980
Kraft Salutes Disneyland's 25th Anniversary
as Self
1980
Enola Gay: The Men, the Mission, the Atomic Bomb
as Capt. Bob Lewis
1980
The Mike Douglas Show
as Self - Co-Host
1979
The Best Place to Be
as Rick Jawlosky
1979
Trapper John, M.D.
as Gonzo Gates
1979
Battle of the Network Stars
1978
Centennial
as Levi Zendt
1977
Fraternity Row
as Zac
1977
The Gathering
as Bud Jr.
1977
Logan's Run
as Logan
1976
M*A*S*H
as Lt. Tony Baker
1975
Trilogy of Terror
as Arthur Moore
1975
Jim, the World's Greatest
as Jim Nolan
1973
The Harrad Experiment
as Student (uncredited)