# Peter Horton
**Peter Horton** (born 1953) is an American actor, director, producer, and writer best known for playing Professor Gary Shepherd on the ABC drama *thirtysomething* from 1987 to 1991, and for his later directing and producing work on series such as *The Shield* and *Grey's Anatomy*.[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) • [2](https://www.tvinsider.com/people/peter-horton/)
| Key fact | Detail |
|---|---|
| Born | 1953, Bellevue, Washington[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) |
| Signature role | Professor Gary Shepherd, *thirtysomething*, ABC, 1987–91[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) |
| Education | Degree in music composition, University of California, Santa Barbara; also attended Principia College[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) |
| Feature directing debut | *The Cure* (1995), about two young best friends, one of whom has AIDS; won the Cinekid Audience Award in 1995[2](https://www.tvinsider.com/people/peter-horton/) • [1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) |
| Later TV work | Co-executive producer of *Grey's Anatomy* (ABC, 2005); director and creative consultant on *The Shield* (FX, 2002–08)[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) • [2](https://www.tvinsider.com/people/peter-horton/) |
| Marriages | Michelle Pfeiffer (1981, divorced 1988); Nicole Deputron (1995)[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) • [11](https://transcripts.cnn.com/show/lkl/date/2005-10-14/segment/01) |
| Environmental work | Board member of the Environmental Media Association; appeared in the documentary *Who Killed the Electric Car* (2006)[2](https://www.tvinsider.com/people/peter-horton/) |
## Early life and acting career
Horton was born in [Bellevue, Washington](https://www.edgepedia.org/bellevue-washington), and earned a degree in music composition at the [University of California, Santa Barbara](https://www.edgepedia.org/university-of-california-santa-barbara); he also attended Principia College and has listed playing classical piano among his avocations.[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) He performed on stage with the Lobero Repertory Theatre in Santa Barbara before moving into television.[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953)
His first break came in 1979 with an episode of *The White Shadow* (CBS, 1978–1981).[2](https://www.tvinsider.com/people/peter-horton/) Guest appearances followed on *Eight Is Enough*, *Dallas*, *Kaz*, and *Flamingo Road*, along with television movies including *She's Dressed to Kill* (NBC, 1979), *Miracle on Ice* (ABC, 1981), and *Choices of the Heart* (NBC, 1983).[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) • [2](https://www.tvinsider.com/people/peter-horton/) His first regular series role was Crane McFadden in *Seven Brides for Seven Brothers* (CBS, 1982–83), which lasted one season.[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) • [2](https://www.tvinsider.com/people/peter-horton/) Film roles in this period included Dr. Burt Stanton in *Children of the Corn* (1984) and a segment part in *[Amazon Women on the Moon](https://www.edgepedia.org/amazon-women-on-the-moon)* (1987).[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953)
## thirtysomething
In 1987 Horton was cast as Gary Shepherd, Michael Steadman's college friend, an English Ph.D. seeking tenure, in *thirtysomething*, the ABC drama created by Marshall Herskovitz and [Edward Zwick](https://www.edgepedia.org/edward-zwick) about a group of friends in Philadelphia.[2](https://www.tvinsider.com/people/peter-horton/) • [3](https://reason.com/1988/12/01/television-gets-real/) He began the series as the free-wheeling single liberal professor of the ensemble and evolved into a crisis-stricken husband and father.[2](https://www.tvinsider.com/people/peter-horton/)
The series ran four seasons, from September 1987 to May 1991, and won 13 Emmys, including Outstanding Drama Series in 1988, with 42 nominations in total.[4](https://www.televisionacademy.com/features/news/mix/something-behold) • [5](https://www.televisionacademy.com/shows/thirtysomething) It also received a 1988 Peabody Award, which singled out the ensemble cast including Horton.[6](https://peabodyawards.com/award-profile/thirtysomething/)
**From acting to directing.** During his four years on the show, Horton directed about half a dozen episodes as well as an episode of *The Wonder Years*.[2](https://www.tvinsider.com/people/peter-horton/) Co-creators Herskovitz and Zwick encouraged cast members to direct, a significant move for Horton and [Ken Olin](https://www.edgepedia.org/ken-olin), who largely left acting for directing after the series ended.[4](https://www.televisionacademy.com/features/news/mix/something-behold) When Horton decided to focus his career on directing, the writers killed off Gary in a car accident early in the final season.[2](https://www.tvinsider.com/people/peter-horton/)
## Directing and producing career
Horton's first directing credit was the 1985 [ABC Afterschool Special](https://www.edgepedia.org/abc-afterschool-special) about drunk driving, *One Too Many*, which starred his then-wife [Michelle Pfeiffer](https://www.edgepedia.org/michelle-pfeiffer).[2](https://www.tvinsider.com/people/peter-horton/) • [1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) He directed the NBC television movie *Extreme Close-Up* in 1990 and served as creative consultant and director on the pilots *Class of '96* (Fox, 1993) and *Birdland* (ABC, 1994).[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) • [2](https://www.tvinsider.com/people/peter-horton/)
In 1995, ten years after that debut, he made his feature film directing entrance with *[The Cure](https://www.edgepedia.org/the-cure-1995-film)*, about a summer in the life of two young best friends, one of whom has AIDS; the film won the Cinekid Audience Award that year.[2](https://www.tvinsider.com/people/peter-horton/) • [1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) His other film directing credits include the segment "Two I.D.s" in *Amazon Women on the Moon* (1987) and *Powers That Be* (1997), and he wrote the screenplay for *Falling Fire* (1997) under the name Peter I. Horton.[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953)
Back in television, he directed a segment of [Robert Altman](https://www.edgepedia.org/robert-altman)'s anthology series *Gun* (ABC, 1997), episodes of *Once and Again*, *The Shield*, *MDs*, *Line of Fire*, and *One Tree Hill*, and worked as a producer on *Brimstone* (Fox, 1998–99).[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) • [2](https://www.tvinsider.com/people/peter-horton/) He became co-executive producer of *Grey's Anatomy* in 2005, and the International Television Almanac credits him with the show's pilot and a Directors Guild nomination.[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) • [7](https://www.worldradiohistory.com/Archive-International-Television-Almanac/2010/International-Television-Almanac-2010-Whos-Who.pdf) IMDb lists him as an award-winning director, writer, and producer also known for *New Amsterdam* (2018) and *American Odyssey* (2015).[8](https://www.imdb.com/name/nm0005022/)
## Acting after thirtysomething
Horton continued to act while building his directing career. He starred as Ezekiel Stone in the Fox series *Brimstone* (1998–99) and played Max Ryan on *The Geena Davis Show* (ABC, 2000).[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) His television movie roles included General George Armstrong Custer in *Crazy Horse* (TNT, 1996) and [Scott Fischer](https://www.edgepedia.org/scott-fischer) in *Into Thin Air: Death on Everest* (ABC, 1997).[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) Film appearances included *[Singles](https://www.edgepedia.org/singles-1992-film)* (1992), *Two Days in the Valley* (1996), *The End of Violence* (1997), and *T-Rex: Back to the Cretaceous* (1998), the highest-rated film of his catalog on Rotten Tomatoes at 75 percent.[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) • [9](https://www.rottentomatoes.com/celebrity/peter_horton) Guest appearances include *CSI: NY*, *In Treatment*, and *Life Unexpected*.[10](https://tv.apple.com/us/person/peter-horton/umc.cpc.3k9qlvqaj9dhb8ikf5ud8pqi7)
## Environmentalism
Horton has been an outspoken environmentalist, serving on the board of the Environmental Media Association and appearing in Chris Paine's documentary *Who Killed the Electric Car* (2006).[2](https://www.tvinsider.com/people/peter-horton/) Earlier television work reflected the same interest: he hosted the documentaries *Dolphins, Whales, and Us* (CBS, 1990) and *Marine Life Miracles* (PBS, 1992).[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953)
## Personal life
Although he was never married to [Linda Hamilton](https://www.edgepedia.org/linda-hamilton), Horton married actress Michelle Pfeiffer in 1981 (divorced 1988) and Nicole Deputron in 1995.[1](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953) • [11](https://transcripts.cnn.com/show/lkl/date/2005-10-14/segment/01) IMDb reports he has been married to Nicole De Putron since 1995 and has two children.[8](https://www.imdb.com/name/nm0005022/)
## References
1. [Horton, Peter 1953–, Contemporary Theatre, Film and Television, Encyclopedia.com](https://www.encyclopedia.com/education/news-wires-white-papers-and-books/horton-peter-1953)
2. [Peter Horton – Actor, Director, TV Insider](https://www.tvinsider.com/people/peter-horton/)
3. [Life & Liberty: Television Gets Real, Reason (1988)](https://reason.com/1988/12/01/television-gets-real/)
4. [Something to Behold, Television Academy (2017)](https://www.televisionacademy.com/features/news/mix/something-behold)
5. [Thirtysomething – Emmy Awards and Nominations, Television Academy](https://www.televisionacademy.com/shows/thirtysomething)
6. [thirtysomething, The Peabody Awards](https://peabodyawards.com/award-profile/thirtysomething/)
7. [International Television Almanac 2010 – Who's Who](https://www.worldradiohistory.com/Archive-International-Television-Almanac/2010/International-Television-Almanac-2010-Whos-Who.pdf)
8. [Peter Horton (I), IMDb](https://www.imdb.com/name/nm0005022/)
9. [Peter Horton Movies & TV Shows List, Rotten Tomatoes](https://www.rottentomatoes.com/celebrity/peter_horton)
10. [Peter Horton Movies and Shows, Apple TV](https://tv.apple.com/us/person/peter-horton/umc.cpc.3k9qlvqaj9dhb8ikf5ud8pqi7)
11. [CNN.com - Transcripts](https://transcripts.cnn.com/show/lkl/date/2005-10-14/segment/01)
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*Topic: Encyclopedia › Arts and culture › Screen and stage › Film and television › Screen people and creators › Screen actors of the Anglosphere and Europe › American actors: 1970s to 1990s › Surnames He to H*
*Initially written Sep 17, 2026 · Reviewed: Sep 17, 2026; Oct 25, 2026 · Edited: Oct 12, 2026; Oct 25, 2026 · Last review: Oct 25, 2026*
*Copyright 2026 EdgeChat AI, a subsidiary of Biostate AI.*
License: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license