Born in Avalon, California, Harrison was the middle child of a ship captain-poet and a dancer, later serving two years as an Army medic. He first attracted notice as the title hero in Logan's Run (1977-78) and as Levi Zendt in the NBC miniseries Centennial, then appeared on MASH before securing the long-running role of Dr. George “Gonzo” Gates on Trapper John, M.D. (1979-86). Later credits include… Read more
Biography written by WatchMoods, based on public sources
Known for Law & Order: Special Victims Unit 1999 9-1-1 2018 NCIS 2003 Castle 2009 Series ★ 7.8 Chesapeake Shores 2016
Thomas O'Brien Series ★ 7.8 One Tree Hill 2003
Paul Norris Series ★ 7.7 Drop Dead Diva 2009
Brandon Tharpe Series ★ 7.7 Ed 2000
Nick Stanton Series ★ 7.7 The Outer Limits 1995
Dr. Larry Chambers Series ★ 7.7 Centennial 1978
Levi Zendt Series ★ 7.6 The Middle 2009
Bennett Brooks Series ★ 7.5 Judging Amy 1999
Tom Gillette ★ 7.3 Signed, Sealed, Delivered: To the Altar 2018
Joe O'Toole ★ 7.3 Signed, Sealed, Delivered: Higher Ground 2017
Joe O’Toole ★ 7.2 Signed, Sealed, Delivered: Lost Without You 2016
Joe O’Toole Series ★ 7.2 Hot in Cleveland 2010
Dave Series ★ 7.2 Dark Skies 1996
Old John Loengard Series ★ 7.2 Touched by an Angel 1994
Pete Taylor ★ 7.1 Signed, Sealed, Delivered: The Vows We Have Made 2021
Joe O’Toole ★ 7 Sweet Carolina 2021
Pete Series ★ 7 Reckless 2014
Dec Fortnum ★ 6.9 The Nine Kittens of Christmas 2021
Chief Sam ★ 6.8 Signed, Sealed, Delivered: Home Again 2017
Joe O'Toole Series ★ 6.8 Logan's Run 1977
Logan ★ 6.7 Signed, Sealed, Delivered: Truth Be Told 2015
Joe O'Toole ★ 6.7 The Nine Lives of Christmas 2014
Chief Sam ★ 6.6 Signed, Sealed, Delivered: One in a Million 2016
Joe O'Toole Series ★ 6.6 Trapper John, M.D. 1979
Gonzo Gates ★ 6.5 Love, Fall & Order 2019
Hank Hart ★ 6.3 Fair Haven 2017
Doctor Gallagher ★ 6.3 It's My Party 1996
Brandon Theis ★ 6.3 Trilogy of Terror 1975
Arthur Moore ★ 6.2 My Christmas Love 2016
Tom Baker ★ 6.1 Cloudy with a Chance of Love 2015
Grant Series ★ 6.1 Ringer 2011
Tim Arbogast ★ 6 The Vanished 2020
Dr. Bradley ★ 5.9 A Christmas Romance 1994
Brian Harding ★ 5.9 North Shore 1987
Chandler ★ 5.9 Razorback 1984
Carl Winters ★ 5.8 After All These Years 2013
David ★ 5.8 Undercover Bridesmaid 2012
Mr. Thompson ★ 5.7 Give 'em Hell, Malone 2009
Whitmore ★ 5.7 Au Pair 1999
Oliver Caldwell ★ 5.4 Love n' Dancing 2009
Carl ★ 5.2 Au Pair II 2001
Oliver Caldwell ★ 5.1 Air Bud: Golden Receiver 1998
Dr. Patrick Sullivan ★ 4.8 First Daughter 1999
President Jonathan Hayes Also behind the camera The films and series they directed.
★ 7.2 Touched by an Angel 1994 ★ 6.6 Trapper John, M.D. 1979 
