Gregory Harrison
Known for
Acting
Life
Born 1950 (age 76)
Born in
Avalon, California, USA
Credits
View on IMDb109 acting credits
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
20 Sep 1999
9-1-1
03 Jan 2018
NCIS
23 Sep 2003
Castle
09 Mar 2009
Psych
07 Jul 2006
The Middle
30 Sep 2009
M*A*S*H
17 Sep 1972
One Tree Hill
23 Sep 2003
Photos
Filmography
2025
- Signed, Sealed, Delivered: To the Moon and Backas Joe O'Toole
2024
- Signed, Sealed, Delivered: A Tale of Three Lettersas Joe O'Toole
2021
- The Nine Kittens of Christmasas Chief Sam
- Signed, Sealed, Delivered: The Vows We Have Madeas Joe O’Toole
- Sweet Carolinaas Pete
2020
- The Vanishedas Dr. Bradley
2019
- Love, Fall & Orderas Hank Hart
2018
- Signed, Sealed, Delivered: To the Altaras Joe O'Toole
- 9-1-1as Phillip Buckley7 episodes
2017
- Signed, Sealed, Delivered: Home Againas Joe O'Toole
- Fair Havenas Doctor Gallagher
- Signed, Sealed, Delivered: Higher Groundas Joe O’Toole
2016
- My Christmas Loveas Tom Baker
- American Housewifeas Dan2 episodes
- Signed, Sealed, Delivered: Lost Without Youas Joe O’Toole
- Chesapeake Shoresas Thomas O'Brien15 episodes
- Signed, Sealed, Delivered: One in a Millionas Joe O'Toole
2015
- Signed, Sealed, Delivered: Truth Be Toldas Joe O'Toole
- Cloudy with a Chance of Loveas Grant
2014
- The Nine Lives of Christmasas Chief Sam
- Recklessas Dec Fortnum13 episodes
- The M Word
2013
- After All These Yearsas David
2012
- Undercover Bridesmaidas Mr. Thompson
2011
- Ringeras Tim Arbogast5 episodes
- Body of Proofas Dr. Cameron Fischer1 episode
2010
- Rizzoli & Islesas Ron Hanson6 episodes
- Hot in Clevelandas Dave1 episode
- Accidental Icon: The Real Gidget Story
2009
- The Middleas Bennett Brooks1 episode
- Drop Dead Divaas Brandon Tharpe1 episode
- Maneateras Teddy Alpert2 episodes
- Love n' Dancingas Carl
- Au Pair 3: Adventure in Paradiseas Oliver Caldwell
- Castleas Danny Valentine1 episode
- Give 'em Hell, Maloneas Whitmore
2006
- Psychas Ted Lomax1 episode
2005
- Reunion4 episodes
2004
- Joeyas Dean5 episodes
2003
- One Tree Hillas Paul Norris12 episodes
- NCISas Roland Ebbakey1 episode
- Hollywood's Magical Island: Catalina
- Miraclesas Sheriff Ed Prescott1 episode
2001
- Au Pair IIas Oliver Caldwell
2000
- First Targetas President Jonathan Hayes
- Edas Nick Stanton5 episodes
- Strong Medicineas Dr. Randolf Kilner4 episodes
1999
- Law & Order: Special Victims Unitas Nathan Speer1 episode
- Safe Harboras John Loring10 episodes
- Judging Amyas Tom Gillette4 episodes
- Au Pairas Oliver Caldwell
- First Daughteras President Jonathan Hayes
- Murder at 75 Birchas Rick Todson
1998
- Air Bud: Golden Receiveras Dr. Patrick Sullivan
- Running Wildas Matt Robinson
1996
- Dark Skiesas Old John Loengard19 episodes
- Summer of Fearas Mr. Marshall
- It's My Partyas Brandon Theis
1995
- Hard Evidenceas Trent Turner
- Nothing Lasts Foreveras Dr. Benjamin 'Ben' Wallace2 episodes
- Nothing Lasts Foreveras Dr. Benjamin 'Ben' Wallace
- New York Newsas Jack Reilly13 episodes
- 500 Nations8 episodes
- The Outer Limitsas Dr. Larry Chambers1 episode
- A Dangerous Affairas Robert Kenzer
1994
- A Christmas Romanceas Brian Harding
- Mortal Fearas Philip Montgomery
- Touched by an Angelas Don Costello1 episode
- Lies of the Heart: The Story of Laurie Kelloggas Bruce Kellogg
1993
- Sudden Furyas Tom Kelley
- Caught in the Actas Scott McNally
- Cadillac Girlsas Sam
1992
- Body Chemistry II: The Voice of a Strangeras Dan
- Duplicatesas Bob Boxletter
- Breaking the Silenceas Paul Danner
- Split Imagesas Robbie Daniels
1991
- Bare Essentialsas William 'Bill' Buzell owner of Luhana
1990
- Angel of Deathas Gary Nicholson
- The Family Manas Jack Taylor22 episodes
- Dangerous Pursuitas John
1987
- North Shoreas Chandler
1986
- Fresnoas Torch5 episodes
- Picnicas Hal Carter
- Oceans of Fireas Ben Laforche
- Pee-wee's Playhouseas Conky 2000 (voice)13 episodes
- The Nativityas Joseph (voice)
1985
- Seducedas Mike Riordan
1984
- Razorbackas Carl Winters
1983
- The Hasty Heartas Sgt. Lachlen McLachlen
- The Fighteras Merle Banks
1981
- Falcon Crestas Michael Sharpe22 episodes
- For Ladies Onlyas John Phillips
1980
- Enola Gay: The Men, the Mission, the Atomic Bombas Capt. Bob Lewis
- The Women's Roomas Ben Volper
1979
- Trapper John, M.D.as Gonzo Gates151 episodes
- The Best Place to Beas Rick Jawlosky
1978
- Centennialas Levi Zendt12 episodes
1977
- The Gatheringas Bud Jr.
- Logan's Runas Logan14 episodes
- Fraternity Rowas Zac
1976
- Battle of the Network Stars4 episodes
1975
- Jim, the World's Greatestas Jim Nolan
- Trilogy of Terroras Arthur Moore
1973
- The Harrad Experimentas Student (uncredited)
1972
- M*A*S*Has Lt. Tony Baker1 episode