Gregory Harrison

Actor · Executive Producer · Producer
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Gregory Neale Harrison is an American actor. He is known for his role as Chandler in the 1987 cult favorite North Shore and as Dr. George Alonzo "Gonzo" Gates, the young surgeon assistant of Dr. Trapper John MacIntyre on the CBS series Trapper John, M.D. (1979–86). Since 2015, he has played Joe O'Toole, father of Oliver, in the Hallmark Channel... read more

Gregory Neale Harrison is an American actor. He is known for his role as Chandler in the 1987 cult favorite North Shore and as Dr. George Alonzo "Gonzo" Gates, the young surgeon assistant of Dr. Trapper John MacIntyre on the CBS series Trapper John, M.D. (1979–86). Since 2015, he has played Joe O'Toole, father of Oliver, in the Hallmark Channel expansion films of Signed, Sealed and Delivered.

Birth Name

Gregory Neale Harrison

Born

Wednesday, 31 May 1950

Actor Filmography

(see additional filmography)

Actor Filmography

The Vanished Dr. Bradley 2020
Love, Fall & Order Hank Harp / Hank Hart 2019
Signed, Sealed, Delivered: To the Altar Joe O'Toole 2018
Signed, Sealed, Delivered: Home Again Joseph O'Toole 2017
Signed, Sealed, Delivered: Higher Ground Joe O’Toole 2017
My Christmas Love Tom 2016
American Housewife Dan 2016
Signed, Sealed, Delivered: Lost Without You Joe O'Toole 2016
Chesapeake Shores Thomas O'Brien 2016
Signed, Sealed, Delivered: One in a Million Joe O'Toole 2016
Fair Haven Doctor Gallagher 2016
Interviews from the Dressing Room Himself 2016
Signed, Sealed, Delivered: Truth Be Told Joe O'Toole 2015
Cloudy With a Chance of Love Grant 2015
The Nine Lives of Christmas Chief Sam 2014
Reckless Dec Fortnum 2014
The M Word Mack Riley 2014
After All These Years David Larabee 2013
Undercover Bridesmaid Mr. Thompson 2012
Outside the Box Thorn 2011
Ringer Tim Arbogast 2011
Body of Proof Dr. Cameron Fischer 2011
Rizzoli & Isles Ron Hanson 2010
Hot in Cleveland Dave 2010
Accidental Icon: The Real Gidget Story Himself 2010
The Fuzz Lt. Donovan 2010
The Middle Bennett Brooks 2009
Drop Dead Diva Brandon Tharpe 2009
Maneater Teddy Alpert 2009
Love N' Dancing Uncle Carl 2009
Au Pair 3: Adventure in Paradise Oliver Caldwell 2009
Castle Danny Valentine 2009
Give 'Em Hell Malone Whitmore 2009
Not Quite Hollywood: The Wild, Untold Story of Ozploitation! Himself 2008
Psych Ted Lomax 2006
Reunion Russell Brewster 2005
CSI: NY Roland Carson 2004
Joey Dean 2004
Rodney Duke Lewis 2004
One Tree Hill Paul Norris 2003
NCIS Captain Roland Ebbakey 2003
Hollywood's Magical Island: Catalina Himself - Actor / Third Generation Islander 2003
Miracles Sheriff Ed Prescott 2003
First Shot President Jonathan Hayes 2002
Au Pair II Oliver Caldwell 2001
Ed Nick Stanton 2000
Strong Medicine Dr. Randolf Kilner 2000
Canone inverso - Making Love 5-Year Old Jeno 2000
First Target President Jonathan Hayes 2000
Safe Harbor John Loring 1999
Law & Order: Special Victims Unit Nathan Speer 1999
Judging Amy Tom Gillette 1999
Au Pair Oliver Caldwell 1999
First Daughter President Jonathan Hayes 1999
Maggie Winters Mr. Wiehe 1998
Air Bud: Golden Receiver Dr. Patrick Sullivan 1998
Running Wild Matt Robinson 1998
Dead Man's Gun Boucher 1997
When Secrets Kill Greg Newhall 1997
Dark Skies Old John Loengard 1996
Summer of Fear Mr. Marshall 1996
The Home and Family Show Himself 2012
It's My Party Brandon Theis 1996
Nothing Lasts Forever Dr. Benjamin 'Ben' Wallace 1995
New York News Jack Reilly 1995
Hard Evidence Trent Turner 1995
500 Nations Himself - Narrator 1995
The Outer Limits Dr. Larry Chambers 1995
A Dangerous Affair Robert Kenzer 1995
A Christmas Romance Brian Harding 1994
Mortal Fear Philip Montgomery 1994
Touched by an Angel Don Costello, Pete Taylor, Richard 1994
Space Ghost Coast to Coast (as Greg Harrison) 1994
Lies of the Heart: The Story of Laurie Kellogg Bruce Kellogg 1994
Caught In The Act Scott McNally 1993
Cadillac Girls Sam 1993
A Family Torn Apart Tom Kelley 1993
Breaking the Silence Paul Danner 1992
Body Chemistry II: The Voice of a Stranger Dan 1991
Sisters Daniel Albright 1991
Bare Essentials William 'Bill' Buzell owner of Luhana 1991
True Detectives Host 1990
Angel of Death Gary Nicholson 1990
The Family Man Jack Taylor 1990
Dangerous Pursuit 1990
Red River Cherry Valance 1988
Hot Paint Willie 1988
North Shore Chandler 1987
Happy 100th Birthday, Hollywood Himself 1987
The Nativity Joseph (voice) 1987
Fresno Torch 1986
Pee-wee's Playhouse Knucklehead, Conky, Mr. Knucklehead 1986
Oceans of Fire Ben Laforche 1986
Seduced Mike Riordan 1985
The Greatest Adventure: Stories from the Bible Joseph 1985
Razorback Carl Winters 1984
The Hasty Heart Sgt. Lachlen McLachlen 1983
Falcon Crest Michael Sharpe 1981
Enola Gay: The Men, the Mission, the Atomic Bomb Captain Bob Lewis 1980
The Women's Room Ben Volper 1980
CBS Schoolbreak Special Himself 1984
The Toni Tennille Show Himself 1979
Trapper John, M.D. George Alonzo 'Gonzo' Gates 1979
Centennial Levi Zendt 1978
The Gathering Bud Jr. 1977
Logan's Run Logan 1977
Fraternity Row Zac Sterling 1977
Jim, the World's Greatest Jim Nolan 1976
Trilogy Of Terror Arthur Moore 1975
The Harrad Experiment Student 1973
Barnaby Jones Ritchie Ridder 1973
M*A*S*H Lt. Tony Baker 1972
The Mike Douglas Show Himself - Actor, Himself - Co-Host 1961

Director Filmography

Producer Filmography

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