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
TV
Law & Order: Special Victims Unit
Nathan Speer
1999
TV
NCIS
Roland Ebbakey
2003
TV
Castle
Danny Valentine
2009
TV
The Mike Douglas Show
Self - Co-Host
1961
TV
9-1-1
Phillip Buckley
2018
TV
Psych
Ted Lomax
2006
TV
Joey
Dean
2004
TV
One Tree Hill
Paul Norris
2003
TV
Rizzoli & Isles
Ron Hanson
2010
TV
Falcon Crest
Michael Sharpe
1981
TV
M*A*S*H
Lt. Tony Baker
1972
TV
The Middle
Bennett Brooks
2009
TV
Strong Medicine
Dr. Randolf Kilner
2000
TV
Touched by an Angel
Pete Taylor
1994
TV
Touched by an Angel
Richard
1994
TV
Touched by an Angel
Don Costello
1994
TV
Judging Amy
Tom Gillette
1999
TV
The Outer Limits
Dr. Larry Chambers
1995
TV
Hot in Cleveland
Dave
2010
TV
Chesapeake Shores
Thomas O'Brien
2016
Filmography
2025FilmSigned, Sealed, Delivered: To the Moon and Backas Joe O'Toole2024FilmSigned, Sealed, Delivered: A Tale of Three Lettersas Joe O'Toole2022FilmJimmy and Carolyn2021FilmThe Nine Kittens of Christmasas Chief Sam2021FilmSigned, Sealed, Delivered: The Vows We Have Madeas Joe O’Toole2021FilmSweet Carolinaas Pete2020FilmThe Vanishedas Dr. Bradley2019FilmLove, Fall & Orderas Hank Hart2018FilmSigned, Sealed, Delivered: To the Altaras Joe O'Toole2018TV9-1-1as Phillip Buckley2017FilmSigned, Sealed, Delivered: Home Againas Joe O'Toole2017FilmFair Havenas Doctor Gallagher2017FilmSigned, Sealed, Delivered: Higher Groundas Joe O’Toole2016FilmMy Christmas Loveas Tom Baker2016TVAmerican Housewifeas Dan2016FilmSigned, Sealed, Delivered: Lost Without Youas Joe O’Toole2016TVChesapeake Shoresas Thomas O'Brien2016FilmSigned, Sealed, Delivered: One in a Millionas Joe O'Toole2015FilmSigned, Sealed, Delivered: Truth Be Toldas Joe O'Toole2015FilmCloudy with a Chance of Loveas Grant2014FilmThe Nine Lives of Christmasas Chief Sam2014TVRecklessas Dec Fortnum2014FilmThe M Word2013FilmAfter All These Yearsas David2012FilmUndercover Bridesmaidas Mr. Thompson2011TVRinger2011TVBody of Proofas Dr. Cameron Fischer2010TVRizzoli & Islesas Ron Hanson2010TVHot in Clevelandas Dave2010FilmAccidental Icon: The Real Gidget Story2009TVThe Middleas Bennett Brooks2009TVDrop Dead Divaas Brandon Tharpe2009TVManeateras Teddy Alpert2009FilmLove n' Dancingas Carl2009FilmAu Pair 3: Adventure in Paradiseas Oliver Caldwell2009TVCastleas Danny Valentine2009FilmGive 'em Hell, Maloneas Whitmore2008FilmNot Quite Hollywoodas Self2006TVPsychas Ted Lomax2005TVReunion2004TVJoeyas Dean2003TVOne Tree Hillas Paul Norris2003TVNCISas Roland Ebbakey2003FilmHollywood's Magical Island: Catalina2003TVMiraclesas Sheriff Ed Prescott2001FilmAu Pair IIas Oliver Caldwell2000FilmFirst Targetas President Jonathan Hayes2000TVEdas Nick Stanton2000TVStrong Medicineas Dr. Randolf Kilner1999TVLaw & Order: Special Victims Unitas Nathan Speer1999TVSafe Harboras John Loring1999TVJudging Amyas Tom Gillette1999FilmAu Pairas Oliver Caldwell1999FilmFirst Daughteras President Jonathan Hayes1999FilmMurder at 75 Birchas Rick Todson1998FilmAir Bud: Golden Receiveras Dr. Patrick Sullivan1998FilmRunning Wildas Matt Robinson1997FilmWhen Secrets Kill1996TVDark Skiesas Old John Loengard1996FilmSummer of Fearas Mr. Marshall1996FilmIt's My Partyas Brandon Theis1995FilmHard Evidenceas Trent Turner1995TVNothing Lasts Foreveras Dr. Benjamin 'Ben' Wallace1995FilmNothing Lasts Foreveras Dr. Benjamin 'Ben' Wallace1995TVNew York Newsas Jack Reilly1995TV500 Nations1995TVThe Outer Limitsas Dr. Larry Chambers1995FilmA Dangerous Affairas Robert Kenzer1994FilmA Christmas Romanceas Brian Harding1994FilmMortal Fearas Philip Montgomery1994TVTouched by an Angelas Pete Taylor1994FilmLies of the Heart: The Story of Laurie Kelloggas Bruce Kellogg1993FilmSudden Furyas Tom Kelley1993FilmCaught in the Actas Scott McNally1993FilmCadillac Girlsas Sam1992FilmBody Chemistry II: Voice of a Strangeras Dan1992FilmDuplicatesas Bob Boxletter1992FilmBreaking the Silenceas Paul Danner1992FilmSplit Imagesas Robbie Daniels1991FilmBare Essentialsas William 'Bill' Buzell owner of Luhana1990FilmAngel of Deathas Gary Nicholson1990TVThe Family Manas Jack Taylor1990FilmNight of 100 Stars IIIas Self1990FilmDangerous Pursuitas John1988FilmRed Riveras Cherry Valance1988FilmHot Paintas Willie1987FilmNorth Shoreas Chandler1987FilmHappy 100th Birthday, Hollywoodas Self1986TVFresnoas Torch1986FilmPicnicas Hal Carter1986FilmOceans of Fireas Ben Laforche1986TVPee-wee's Playhouseas Conky 2000 (voice) / Knucklehead (voice)1986FilmThe Nativityas Joseph (voice)1985FilmSeducedas Mike Riordan1985FilmNight of 100 Stars IIas Self1984FilmRazorbackas Carl Winters1983FilmThe Hasty Heartas Sgt. Lachlen McLachlen1983FilmThe Fighteras Merle Banks1981TVFalcon Crestas Michael Sharpe1981FilmFor Ladies Onlyas John Phillips1980FilmEnola Gay: The Men, the Mission, the Atomic Bombas Capt. Bob Lewis1980FilmThe Women's Roomas Ben Volper1980FilmKraft Salutes Disneyland's 25th Anniversaryas Self1979TVTrapper John, M.D.as George Alonzo 'Gonzo' Gates1979FilmThe Best Place to Beas Rick Jawlosky1978TVCentennialas Levi Zendt1977FilmThe Gatheringas Bud Jr.1977TVLogan's Runas Logan1977FilmFraternity Rowas Zac1976TVBattle of the Network Stars1975FilmJim, the World's Greatestas Jim Nolan1975FilmTrilogy of Terroras Arthur Moore1973FilmThe Harrad Experimentas Student (uncredited)1972TVM*A*S*Has Lt. Tony Baker1961TVThe Mike Douglas Showas Self - Co-Host