Gregory Neale Harrison (born May 31, 1950) is an American actor. He is known primarily for his roles as Dr. George Alonzo "Gonzo" Gates, the young surgeon assistant of Dr. Trapper John McIntyre (played by Pernell Roberts) on the CBS series Trapper John, M.D. (1979–86), and as ruthless business tycoon Michael Sharpe in the CBS series Falcon Crest (1989–1990). Since 2015, Harrison has played Joe O'Toole, father of Oliver, in the Hallmark Channel expansion films of Signed, Sealed and Delivered. From 2020 to 2024, he assumed the role of Gregory Chase on General Hospital.
Harrison appeared on an episode of M*A*S*H before garnering fame in 1979 with the role of surgeon Dr. George "Gonzo" Gates on Trapper John, M.D., starring opposite Pernell Roberts. The medical drama was spun off from M*A*S*H. Harrison remained as Gonzo on Trapper John until the middle of the show's seventh season, when he decided to leave for other ventures. The series continued for several more episodes without Harrison, but concluded its run at the end of the 1985–86 season.
Harrison's later role as striptease John Phillips in the 1981 TV movie For Ladies Only made him a favorite with women and gay men in the 1980s. Harrison spoofed that role in the 1986 miniseries Fresno, where his character appeared shirtless at every opportunity. Fresno was also a spoof of the prime-time series Falcon Crest, where Harrison became a regular three years later in the final season (1989–90). As Falcon Crest ended production in early 1990, the series' parent studio, Lorimar Television, cast Harrison in its upcoming CBS sitcom The Family Man, from producers Thomas L. Miller and Robert L. Boyett. The series, which premiered that fall, featured Harrison as a single fireman father raising his four children with the help of his father-in-law, played by Al Molinaro. Despite a few attempts by CBS to help it build an audience, The Family Man was cancelled after one season.
Harrison later joined the cast of NBC's Sisters for the 1994–95 season, playing Daniel Albright. In 1996, he starred with Eric Roberts in It's My Party, a film based on the true story of a man in the end stages of AIDS who planned a party to say goodbye to friends and family.
Harrison starred in the WB Network's Safe Harbor and One Tree Hill and has made guest appearances on other shows such as Touched by an Angel, Judging Amy, Rizzoli & Isles, Reunion, Joey, , Drop Dead Diva and Hot in Cleveland.
Harrison played Billy Flynn in the touring and Broadway theatre productions of Chicago, and he was the male lead as Oliver Caldwell in each film of the Au Pair trilogy. Harrison also appeared as Benjamin Stone in the Broadway revival of Stephen Sondheim's Follies and starred in the original Broadway production of Kander & Ebb's musical Steel Pier. In 2011, he had a guest-starring role as a doctor on ABC's Body of Proof. In 2020, Harrison joined the cast of General Hospital. He exited in 2024.
Harrison became addicted to cocaine during the 1980s, and he broke the addiction with the help of the Betty Ford Center.
Alternative title: Air Bud 2 |
Alternative title: The Inverse Canon |
Alternative title: Hour of Lead |
Segment: "Julie" |
Co-Producer |
Alternative title: Sudden Fury |
Sequel to The Nine Lives of Christmas |
Episode: "Blood Vengeance" |
Episode: "The Nurses" |
Main role |
Miniseries |
Main role (seasons 1–7) |
Miniseries |
Voice role; episode: "The Nativity" |
Main role |
Main role |
Voice role; 8 episodes |
Recurring role (5 episodes) |
Episode: "There But for the Grace of God" |
Main role |
Uncredited voice role; 20 episodes |
Episode: "Flights of Angels" |
Episode: "To Tell the Truth" |
Episode: "The Trapper" |
Episode: "And Those Who Can't" |
Main role |
Recurring role (5 episodes) |
Recurring role (4 episodes) |
Episode: "Forever Young" |
Recurring role (4 episodes) |
Episode: "The Bone Scatterer" |
Recurring role (7 episodes) |
Recurring role (5 episodes) |
Episode: "Clock" |
Episode: "Potty Mouth" |
Episode: "Crazy" |
Miniseries |
Recurring role (11 episodes) |
Episode: "Out of the Sky" |
Episode: "Elka's Snowbird" |
Episode: "Gross Anatomy" |
Episode: "Soylent Green" |
Recurring role (5 episodes) |
Episode: "Nip and Suck It" |
Main role |
Episode: "Dead from New York" |
Episode: "Viral" |
Recurring role (6 episodes) |
Recurring role (16 episodes) |
Episode: "Meet the Parents" |
2 episodes |
Series regular |
4 episodes |
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