Cast & creator
Gregory Harrison
Best known for Law & Order: Special Victims Unit, NCIS, The Mike Douglas Show
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.
83
film credits
43
television credits
119
1961–2025 · acting roles
6.5
average across scored titles
Signature credits
Known for
Across film & television
Filmography (126)
Showing 126 of 126 credits
Law & Order: Special Victims Unit
Nathan Speer
1999
NCIS
Roland Ebbakey
2003
The Mike Douglas Show
Self - Co-Host
1961
Castle
Danny Valentine
2009
One Tree Hill
Paul Norris
2003
9-1-1
Phillip Buckley
2018
Psych
Ted Lomax
2006
The Middle
Bennett Brooks
2009
Rizzoli & Isles
Ron Hanson
2010
The Outer Limits
Dr. Larry Chambers
1995
M*A*S*H
Lt. Tony Baker
1972
Falcon Crest
Michael Sharpe
1981
Touched by an Angel
Pete Taylor
1994Touched by an Angel
Richard
1994Touched by an Angel
Don Costello
1994Touched by an Angel
Director
1994
Strong Medicine
Dr. Randolf Kilner
2000
Judging Amy
Tom Gillette
1999
Hot in Cleveland
Dave
2010
Trapper John, M.D.
Gonzo Gates
1979Trapper John, M.D.
Director
1979
American Housewife
Dan
2016
Drop Dead Diva
Brandon Tharpe
2009
Body of Proof
Dr. Cameron Fischer
2011
Chesapeake Shores
Thomas O'Brien
2016
Joey
Dean
2004
Ed
Nick Stanton
2000
Ringer
Tim Arbogast
2011
Miracles
Sheriff Ed Prescott
2003
Dark Skies
Old John Loengard
1996
Battle of the Network Stars
1976
New York News
Jack Reilly
1995
Pee-wee's Playhouse
Conky 2000 (voice) / Knucklehead (voice)
1986
Centennial
Levi Zendt
1978
Logan's Run
Logan
1977
Reunion
2005
The Vanished
Dr. Bradley
2020
500 Nations
1995
Reckless
Dec Fortnum
2014
Fresno
Torch
1986
The Family Man
Jack Taylor
1990Safe Harbor
John Loring
1999
It's My Party
Brandon Theis
1996
Air Bud: Golden Receiver
Dr. Patrick Sullivan
1998
Maneater
Teddy Alpert
2009
Love n' Dancing
Carl
2009
The Gathering
Bud Jr.
1977
Give 'em Hell, Malone
Whitmore
2009
The Nine Lives of Christmas
Chief Sam
2014
Body Chemistry II: The Voice of a Stranger
Dan
1992
Night of 100 Stars II
Self
1985
Signed, Sealed, Delivered: To the Altar
Joe O'Toole
2018
Love, Fall & Order
Hank Hart
2019
Nothing Lasts Forever
Dr. Benjamin 'Ben' Wallace
1995
Night of 100 Stars III
Self
1990
After All These Years
David
2013
The Nine Kittens of Christmas
Chief Sam
2021
Bare Essentials
William 'Bill' Buzell owner of Luhana
1991
Signed, Sealed, Delivered: Home Again
Joe O'Toole
2017
First Daughter
President Jonathan Hayes
1999
Caught in the Act
Scott McNally
1993
North Shore
Chandler
1987
Sudden Fury
Tom Kelley
1993
Not Quite Hollywood
Self
2008
Trilogy of Terror
Arthur Moore
1975
Friend to Friend: Armenian Earthquake Relief
Self
1989
Signed, Sealed, Delivered: To the Moon and Back
Joe O'Toole
2025
Signed, Sealed, Delivered: Truth Be Told
Joe O'Toole
2015
My Christmas Love
Tom Baker
2016
Signed, Sealed, Delivered: The Vows We Have Made
Joe O’Toole
2021
Razorback
Carl Winters
1984
Red River
Cherry Valance
1988
Signed, Sealed, Delivered: One in a Million
Joe O'Toole
2016
Happy 100th Birthday, Hollywood
Self
1987
Enola Gay: The Men, the Mission, the Atomic Bomb
Capt. Bob Lewis
1980
Cloudy with a Chance of Love
Grant
2015
Signed, Sealed, Delivered: Higher Ground
Joe O’Toole
2017
Signed, Sealed, Delivered: Lost Without You
Joe O’Toole
2016
Cadillac Girls
Sam
1993
Samson and Delilah
Executive Producer
1984
Seduced
Mike Riordan
1985
Undercover Bridesmaid
Mr. Thompson
2012
The Tower
Executive Producer
1993
Nothing Lasts Forever
Dr. Benjamin 'Ben' Wallace
1995
Angel of Death
Gary Nicholson
1990
For Ladies Only
John Phillips
1981For Ladies Only
Producer
1981
Fair Haven
Doctor Gallagher
2017
The Best Place to Be
Rick Jawlosky
1979
Oceans of Fire
Ben Laforche
1986
Hot Paint
Willie
1988
Summer of Fear
Mr. Marshall
1996
Signed, Sealed, Delivered: A Tale of Three Letters
Joe O'Toole
2024
Au Pair 3: Adventure in Paradise
Oliver Caldwell
2009
Mortal Fear
Philip Montgomery
1994
Sweet Carolina
Pete
2021
First Target
President Jonathan Hayes
2000
The Harrad Experiment
Student (uncredited)
1973
Duplicates
Bob Boxletter
1992
Murder at 75 Birch
Rick Todson
1999
Hollywood's Magical Island: Catalina
2003
The Nativity
Joseph (voice)
1986
The M Word
2014
A Christmas Romance
Brian Harding
1994
Hard Evidence
Trent Turner
1995
Au Pair
Oliver Caldwell
1999
The Women's Room
Ben Volper
1980
Lies of the Heart: The Story of Laurie Kellogg
Bruce Kellogg
1994Jim, the World's Greatest
Jim Nolan
1975
Dark Skies
Old John Loengard (voice) (uncredited)
1996
Legs
Executive Producer
1983
Au Pair II
Oliver Caldwell
2001
The Fighter
Merle Banks
1983
Kraft Salutes Disneyland's 25th Anniversary
Self
1980When Secrets Kill
1997
Accidental Icon: The Real Gidget Story
2010
A Dangerous Affair
Robert Kenzer
1995
Pleasures
Executive Producer
1986
Breaking the Silence
Paul Danner
1992
Running Wild
Matt Robinson
1998
Split Images
Robbie Daniels
1992
Dangerous Pursuit
John
1990
Jimmy and Carolyn
2022
Picnic
Hal Carter
1986
Fraternity Row
Zac
1977The Hasty Heart
Sgt. Lachlen McLachlen
1983