Person · Actor
Gregory Harrison
A seasoned actor navigating the complexities of legacy and reinvention, Gregory Harrison seeks to redefine his career as he balances iconic past roles with new challenges in a rapidly changing entertainment industry.
- Also:
- Producer
- Director
In short · Acting since 1975, 6 decades active, 68 credits.
Known for
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Biography
Gregory Neale Harrison is an American actor known for his television roles. He gained recognition for playing Dr. George Alonzo "Gonzo" Gates, the young surgeon assistant to Dr. Trapper John McIntyre on the CBS series *Trapper John, M.D.* from 1979 to 1986. Harrison also portrayed the ruthless business tycoon Michael Sharpe in the CBS series *Falcon Crest* from 1989 to 1990. In more recent years, he has appeared in Hallmark Channel films as Joe O'Toole, the father of Oliver, in the *Signed, Sealed and Delivered* series beginning in 2015. From 2020 to 2024, Harrison played the role of Gregory Chase on the soap opera *General Hospital*.
Filmography · 63 of 63
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Actor
63 credits
Signed, Sealed, Delivered: To the Moon and Back(2025)
Joe
Film
Signed, Sealed, Delivered: A Tale of Three Letters(2024)
Joe O'Toole
Film
Jimmy and Carolyn(2023)
Jimmy
Film
The Nine Kittens of Christmas(2021)
Sam
Film
Sweet Carolina(2021)
Pete
Film
Signed, Sealed, Delivered: The Vows We Have Made(2021)
Joe
Film
Love, Fall & Order(2019)
Hank Hart
Film
Signed, Sealed, Delivered: To the Altar(2018)
Joe
Film
9-1-1(2018)
Phillip Buckley (7 Episodes)
TV
Signed, Sealed, Delivered: Higher Ground(2017)
Joe O'Toole
Film
Signed, Sealed, Delivered: Home Again(2017)
Joseph O'Toole
Film
Fair Haven(2016)
Dr. Gallagher
Film
My Christmas Love(2016)
Tom
Film
Signed, Sealed, Delivered: One in a Million(2016)
Joe O'Toole
Film
Signed, Sealed, Delivered: Lost Without You(2016)
Joe O'Toole
Film
Cloudy with a Chance of Love(2015)
Grant Marshall
Film
Signed, Sealed, Delivered: Truth Be Told(2015)
Joe O'Toole
Film
The M Word(2014)
Mack Riley
Film
The Nine Lives of Christmas(2014)
Sam
Film
After All These Years(2013)
David Larabee
Film
Undercover Bridesmaid(2012)
Mr. Thompson
Film
Au Pair 3: Adventure in Paradise(2009)
Oliver Caldwell
Film
Malone(2009)
Whitmore
Film
Reunion(2005)
Russell Brewster
TV
Hollywood's Magical Island: Catalina(2003)
Third Generation Islander
Film
Au Pair II(2001)
Oliver Caldwell
Film
Au Pair(1999)
Oliver Caldwell
FilmSafe Harbor(1999)
John Loring
TV
First Daughter(1999)
President Jonathan Hayes
Film
Law and order SVU(1999)
Nathan Speer (1 Episode)
TV
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Additional credits5Show
Non-headline appearances — talk-show, awards-show, panel, and archive-footage credits, kept separate from the main filmography.
- The ConSelf · 2020
- Interviews from the Dressing RoomSelf · 2016
- Accidental Icon: The Real Gidget StorySelf · 2010
- Not Quite HollywoodSelf · 2008
- 500 NationsSelf - Narrator · 1995
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