Gregory Harrison

Gregory Harrison Headshot

Actor

Birth Date: May 31, 1950

Age: 73 years old

Birth Place: Avalon, California

Handsome, likable leading man, almost exclusively on TV, best known as the playful Dr. G. Alonzo 'Gonzo' Gates on the long-running dramatic series, "Trapper John, M.D." Besides trying his hand at several other series, the athletic, curly-haired Harrison has also kept busy in many "Battles of the Network Stars," TV-movies and miniseries, including "Centennial" (1978-79), "For Ladies Only" (1981, as a male stripper), "Picnic" (1986) and "Breaking the Silence" (1992). He has also played leading roles in such feature films as "Razorback" (1984), "Dangerous Pursuit" (1990) and "It's My Party" (1996). In 1997, he made his Broadway musical debut as the disreputable emcee of a marathon dance in the Kander and Ebb musical "Steel Pier."

Credits

Jimmy and Carolyn

Actor
Jimmy
Movie
2023

Sweet CarolinaStream

Actor
Pete
Movie
2021

Signed, Sealed, Delivered: The Vows We Have MadeStream

Actor
Joe O'Toole
Movie
2021

The Nine Kittens of ChristmasStream

Actor
Chief Sam
Movie
2021

Love, Fall & OrderStream

Actor
Hank Hart
Movie
2019

9-1-1Stream

Guest Star
Phillip Buckley
Series
2018
81%

Signed, Sealed, Delivered: To the AltarStream

Actor
Joe O'Toole
Movie
2018

Signed, Sealed, Delivered: Higher Ground

Actor
Joe O'Toole
Movie
2017

Signed, Sealed, Delivered: Home Again

Actor
Joseph O'Toole
Movie
2017

American HousewifeStream

Guest Star
Dan
Series
2016

Signed, Sealed, Delivered: One in a Million

Actor
Joe O'Toole
Movie
2016

Signed, Sealed, Delivered: Lost Without You

Actor
Joe
Movie
2016

My Christmas LoveStream

Actor
Tom
Movie
2016

Fair Haven

Actor
Doctor Gallagher
Movie
2016

Undercover Bridesmaid

Actor
Mr. Thompson
Show
2015

Signed, Sealed, Delivered: Truth Be Told

Actor
Joe O'Toole
Movie
2015

Reckless

Actor
Dec Fortnum
Show
2014

The M Word

Actor
Mack Riley
Movie
2014

Cloudy With a Chance of Love

Actor
Grant
Movie
2014

The Nine Lives of ChristmasStream

Actor
Sam
Movie
2014

After All These Years

Actor
David Larabee
Movie
2013

Undercover Bridesmaid

Actor
Mr. Thompson
Movie
2012

RingerStream

Guest Star
Series
2011
49%

Body of ProofStream

Guest Star
Series
2011
76%

Rizzoli & IslesStream

Guest Star
Ron Hanson
Series
2010

Hot in ClevelandStream

Guest Star
Series
2010

The MiddleStream

Guest Star
Bennett Brooks
Series
2009

Drop Dead DivaStream

Guest Star
Brandon Tharpe
Series
2009
78%

Maneater

Actor
Teddy Alpert
Show
2009

Maneater

Actor
Show
2009

CastleStream

Guest Star
Series
2009
82%

Au Pair 3: Adventure in Paradise

Actor
Oliver Caldwell
Movie
2009

Give 'Em Hell Malone

Actor
Whitmore
Movie
2009

Not Quite Hollywood: The Wild, Untold Story of Ozploitation!

Self
Movie
2008

Reunion

Guest Star
Show
2005

CSI: NYStream

Guest Star
Roland Carson
Series
2004

RodneyStream

Guest Star
Duke Lewis
Series
2004
20%

Joey

Guest Star
Series
2004
50%

One Tree HillStream

Guest Star
Series
2003

NCISStream

Guest Star
Capt. Roland Ebbakey
Series
2003

Miracles

Guest Star
Show
2003

First Shot

Actor
Courtney Robinson
Movie
2002

Au Pair II

Actor
Oliver Caldwell
Movie
2001

Ed

Guest Star
Show
2000

First Target

Actor
President Jonathan Hayes
Movie
2000

Canone Inverso: Making Love

Actor
Movie
2000

Safe Harbor

Actor
Sheriff John Loring
Show
1999

Law & Order: Special Victims UnitStream

Guest Star
Nathan Speer
Series
1999
78%

Judging Amy

Guest Star
Series
1999

Jeune fille au pair

Actor
Oliver Caldwell
Movie
1999

Murder at 75 Birch

Actor
Rick Todson
Movie
1999

First Daughter

Actor
President Jonathan Hayes
Movie
1999

Au Pair

Actor
Oliver Caldwell
Movie
1999

Maggie Winters

Guest Star
Show
1998

Nacidos Para la Libertad

Actor
Matt Robinson
Movie
1998

Running Wild

Actor
Matt Robinson
Movie
1998

Air Bud: Golden Receiver

Actor
Patrick Sullivan
Movie
1998

Dead Man's Gun

Guest Star
Boucher/Trapper
Show
1997

When Secrets Kill

Actor
Greg Newhall
Movie
1997

It's My Party

Actor
Brandon Theis
Movie
1996

Summer of Fear

Actor
Mr. Marshall
Movie
1996

New York News

Actor
Show
1995

500 Nations

Narrator
Show
1995

The Outer LimitsStream

Actor
Dr. Larry Chambers
Series
1995

A Dangerous Affair

Actor
Robert Kenzer
Movie
1995

Hard Evidence

Actor
Trent Turner
Movie
1995

Nothing Lasts Forever

Actor
Dr. Benjamin 'Ben' Wallace
Movie
1995

Touched by an AngelStream

Director
Series
1994

Touched by an AngelStream

Guest Star
Series
1994

Romance Navideño

Actor
Movie
1994

Romance en Navidad

Actor
Movie
1994

Lies of the Heart: The Story of Laurie Kellogg

Actor
Bruce Kellogg
Movie
1994

Mortal Fear

Actor
Philip Montgomery
Movie
1994

A Christmas Romance

Actor
Brian Harding
Movie
1994

Caught in the Act

Actor
Scott McNally
Movie
1993

Cadillac Girls

Actor
Sam
Movie
1993

A Family Torn Apart

Actor
Tom Kelley
Movie
1993

Flagrant délit

Actor
Movie
1993

Passé oublié

Actor
Movie
1993

Beso de la Traición

Actor
Movie
1992

Asesinos Sin Escrúpulos

Actor
Movie
1992

Breaking the Silence

Actor
Paul Danner
Movie
1992

Duplicates

Actor
Bob Boxletter
Movie
1992

Body Chemistry II: The Voice of a Stranger

Actor
Dan
Movie
1992

Split Images

Actor
Robbie Daniels
Movie
1992

Bare Essentials

Actor
William "Bill" Buzell owner of Luhana
Movie
1991

The Family Man

Actor
Jack Taylor
Show
1990

Angel Mortal

Actor
Movie
1990

Dangerous Pursuit

Actor
Movie
1990

Angel of Death

Actor
Gary Nicholson
Movie
1990

Hot Paint

Actor
Willie
Movie
1988

Red RiverStream

Actor
Cherry Valance
Movie
1988

North Shore

Actor
Chandler
Movie
1987

Fresno

Actor
Torch
Miniseries
1986

Oceans of Fire

Actor
Ben Laforche
Movie
1986

Océan en feu

Actor
Movie
1986

Seduced

Actor
Mike Riordan
Movie
1985

The Hasty Heart

Actor
Sgt. Lachlen McLachlen
Movie
1985

Samson and Delilah

Executive Producer
Movie
1984

Razorback

Actor
Carl Winters
Movie
1984

Legs

Executive Producer
Movie
1983

The Fighter

Actor
Merle Banks
Movie
1983

Le Bagarreur

Actor
Movie
1983

Thursday's Child

Executive Producer
Movie
1983

El Boxeador

Actor
Movie
1983

Falcon CrestStream

Actor
Michael Sharpe
Soap
1981

For Ladies Only

Actor
John Phillips
Movie
1981

For Ladies Only

Producer
Movie
1981

Réservé aux dames

Actor
Movie
1981

Enola Gay: The Men, the Mission, the Atomic Bomb

Actor
Show
1980

The Women's Room

Actor
Ben Volper
Movie
1980

Trapper John, M.D.

Actor
Dr. George Alonzo 'Gonzo' Gates
Series
1979

Trapper John, M.D.

Director
Series
1979

CentennialStream

Actor
Levi Zendt
Miniseries
1978

Logan's RunStream

Actor
Logan
Series
1977

The Gathering

Actor
Bud Jr.
Movie
1977

Fraternity Row

Actor
Zac
Movie
1977

Wonder WomanStream

Guest Star
Series
1976

Jim, the World's Greatest

Actor
Jim Nolan
Movie
1976

Trilogy of TerrorStream

Actor
Arthur Moore
Movie
1975
92%

Barnaby JonesStream

Guest Star
Series
1973

M*A*S*HStream

Guest Star
Lt. Tony Baker
Series
1972

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