Peter Horton (born August 20, 1953) is an American actor and director. He played the role of Prof. Gary Shepherd on the popular television series Thirtysomething until 1991.
Grey's Anatomy
2005 - • Director
New Amsterdam
2018 - 2023 • Director
Philip K. Dick's Electric Dreams
2017 - 2018 • Director
American Odyssey
2015 - 2015 • Director
Lone Star
2010 - 2010 • Director
The Philanthropist
2009 - 2009 • Director
Dirty Sexy Money
2007 - 2009 • Director
The Shield
2002 - 2008 • Director
Line of Fire
2003 - 2005 • Director
MDs
2002 - 2003 • Director
Once and Again
1999 - 2002 • Director
The Cure
1995 • Director
Birdland
1994 - 1994 • Director
Class of '96
1993 - 1993 • Director
The Wonder Years
1988 - 1993 • Director
thirtysomething
1987 - 1991 • Director
Amazon Women on the Moon
1987 • Director
In Treatment
2008 - 2021 • Zach
Family
2018 • Charlie
Life Unexpected
2010 - 2011 • Grant Cassidy
The Naked Brothers Band: The Movie
2005 • Peter Horton
Happy Endings
2005 • Ted the Urologist (uncredited)
The Dust Factory
2004 • Lionel
While I Was Gone
2004 • Eli Mayhew
Karen Sisco
2003 - 2007
Thoughtcrimes
2003 • Dr. Michael Welles
The Geena Davis Show
2000 - 2001 • Max Ryan
Brimstone
1998 - 1999 • Ezekiel Stone
T-Rex: Back to the Cretaceous
1998 • Dr. Donald Hayden
From the Earth to the Moon
1998 - 1998 • documentary director
Into Thin Air: Death on Everest
1997 • Scott Fischer
Gun
1997 - 1997
The End of Violence
1997 • Brian
Murder Live!
1997 • Lt. Clay Maloney
2 Days in the Valley
1996 • Roy Foxx
Crazy Horse
1996 • General George Armstrong Custer
Death Benefit
1996 • Steven Keeney
The Baby-Sitters Club
1995 • Patrick
Children of the Dark
1994 • Jim Harrison
1993 - 1993 • Professor Hartman
Singles
1992 • Jamie
1987 - 1991 • Gary Shepherd
Dallas
1978 - 1991 • Wayne
Side Out
1990 • Zack Barnes
St. Elsewhere
1982 - 1988
1987 • Harry Landers
Where the River Runs Black
1986 • Father Mahoney
Children of the Corn
1984 • Burton Stanton
Choices of the Heart
1983 • Doug
Seven Brides for Seven Brothers
1982 - 1983 • Crane McFadden
Split Image
1982 • Jacob
Flamingo Road
1980 - 1982
Die Drehscheibe
1964 - 1982 • Self
Eight Is Enough
1977 - 1981
Freedom
1981 • Bill
The White Shadow
1978 - 1981 • Raymond Collins
Miracle on Ice
1981 • Jack O'Callahan
Fade to Black
1980 • Joey
She's Dressed to Kill
1979 • Tony Smith
Kaz
1978 - 1979
Deception
2013 - 2013 • Producer
1998 - 1999 • Producer
1997 • Executive Producer