Early life and education
Horton studied theater at United States International University (USIU) in San Diego, earning a Bachelor of Fine Arts degree.2 His performing career began in the early 1970s.1
Career
Horton's most prominent on-screen role was Grady Fletcher in Murder, She Wrote, the CBS mystery series starring Angela Lansbury as amateur sleuth Jessica Fletcher. He appeared in twelve episodes1 across seasons one through six and again in season eleven, playing Jessica's perpetually hapless nephew.2 His on-screen wife, Donna Mayberry, was played by actress Debbie Zipp, whom Horton had married in real life years earlier.1
Beyond Murder, She Wrote, Horton built a wide-ranging television resume. He appeared in episodes of MASH*, Taxi, 21 Jump Street, ER, Baywatch, and Star Trek: Voyager.2 In feature films, he played Captain Cargill in Kevin Costner's Dances with Wolves (1990)1 and appeared in the Star Trek film series as a Starfleet officer, credited as Security Officer in Star Trek: First Contact (1996) and as Lieutenant Daniels in Star Trek: Insurrection (1998).1
His voice acting work was substantial throughout the 1980s and 1990s. Among his most recognized animation roles: Chip Chase, the young human supporting character in The Transformers; Rick Jones, the Hulk's longtime companion, in The Incredible Hulk animated series; and John Jameson in the Spider-Man animated series.1 He also voiced Arn in The Legend of Prince Valiant, Tommy Talltree (younger brother of the G.I. Joe character Airborne) in a G.I. Joe episode, and two roles in Jem: Hollywood stuntman Jeff Wright and Craig Phillips, the brother of Stormer.2 He voiced the Prince in Happily Ever After, a Filmation animated feature completed in 1989 and released theatrically in 1993.2
Horton's last credited acting role was in an episode of Judging Amy in 2002.1 He subsequently moved into production, working as a producer, director, and editor. He co-hosted the Digital Production Buzz podcast and founded the Los Angeles Final Cut Pro User Group.1 He retired from performing around 2015.
Ghostbusters
Extreme Ghostbusters
Horton contributed a guest voice to Extreme Ghostbusters in the episode Ghost Apocalyptic Future, which first aired on October 1, 1997 (production number 119). In the episode, Kylie Griffin is caught in a time slip and trades places with a resistance fighter from a ghost-dominated future. Horton was one of several guest voices in the episode, alongside Mayim Bialik, Clancy Brown, Benny Grant, and James Marsden.
Personal life
Horton married actress Debbie Zipp on December 20, 1975.2 The couple have two children together.1 Zipp later appeared in Gilmore Girls and other television projects.2
References
Some content on this page was researched using the Ghostbusters Wiki on Fandom.
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"Michael Horton (actor)," Wikipedia, accessed 2026-06-13, https://en.wikipedia.org/wiki/Michael_Horton_(actor).
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IMDB, "Michael Horton (nm0395649)," biography, accessed 2026-06-13, https://www.imdb.com/name/nm0395649/bio/.