Known For
Acting
Known Credits
94
Gender
Male
Birthday
July 30, 1947 (78 years old)
Place of Birth
Orange, Connecticut, USA
William Atherton Knight Jr. (born July 30, 1947) is an American actor, best known for portraying Richard Thornburg in Die Hard and its sequel and Walter Peck in Ghostbusters.
| 2025 | Where Did the Adults Go?as The Father | |
| 2024 | Ghostbusters: Frozen Empireas Mayor Walter Peck | |
| 2020 | Reunited Apartas Self | |
| 2020 | Cleanin' Up the Town: Remembering Ghostbustersas Self | |
| 2018 | Bad Companyas | |
| 2017 | Clinicalas Terry Drummond | |
| 2016 | Ghostheadsas Self | |
| 2014 | Jinnas Father Westhoff | |
| 2012 | The Citizenas | |
| 2012 | Jersey Shore Shark Attackas Dolan | |
| 2012 | Tim and Eric's Billion Dollar Movieas Earle Swinter | |
| 2011 | Workaholicsas Thor Holmvik | |
| 2010 | The Kane Files: Life of Trialas Daniel Morgan | |
| 2009 | Castleas Ari Weiss | |
| 2008 | Childrens Hospitalas Levon Bainter | |
| 2008 | Ghoulsas Stefan | |
| 2008 | Black Crescent Moonas Jo Dexton | |
| 2008 | Aces 'N' Eightsas Howard | |
| 2007 | Lifeas Mickey Rayborn | |
| 2007 | The Girl Next Dooras Adult David Moran | |
| 2007 | Kushas King | |
| 2007 | Towards Darknessas John | |
| 2005 | Into the Sunas Agent Block | |
| 2005 | Headspaceas Dr. Ira Gold | |
| 2005 | Numb3rsas Warren Pierce | |
| 2005 | Gone But Not Forgottenas Sen. Ray Colby | |
| 2004 | Desperate Housewivesas Dr. Barr | |
| 2004 | Boston Legalas A.D.A. Howard Zale | |
| 2004 | Lostas Donald Reynolds | |
| 2004 | Who's Your Daddy?as Duncan Mack | |
| 2003 | The Last Samuraias Winchester Rep | |
| 2002 | Monkas Commander Nathan Whitaker | |
| 2001 | Justice Leagueas Dr. Destiny / John Dee (voice) | |
| 2001 | Race to Spaceas Ralph Stanton | |
| 2001 | Night Visionsas William Price (segment "Hate Puppet") | |
| 2001 | Burning Down the Houseas Arthur Kranston | |
| 2000 | Bread and Rosesas Party Guest (uncredited) | |
| 2000 | The Crow: Salvationas Nathan Randall | |
| 1999 | The Strangeras | |
| 1999 | Law & Order: Special Victims Unitas Ned Bogden | |
| 1999 | Introducing Dorothy Dandridgeas Darryl Zanuck | |
| 1998 | Michael Kael vs. the World News Companyas James Denit | |
| 1997 | Mad Cityas Dohlen | |
| 1997 | Executive Poweras President Fields | |
| 1997 | Hoodlumas Thomas E. Dewey | |
| 1997 | Stargate SG-1as Emissary Varta | |
| 1997 | The Practiceas D.A. Keith Pratt | |
| 1996 | Raven Hawkas Philip Thorne | |
| 1996 | Nash Bridgesas Dr. Linus Mills | |
| 1996 | Bio-Domeas Dr. Noah Faulkner | |
| 1995 | Broken Trustas Neil Roemer | |
| 1995 | A Night to Die Foras Self | |
| 1995 | Virusas Dr. Reginald Holloway | |
| 1995 | The Outer Limitsas Franklin Murdoch | |
| 1994 | Frank & Jesseas Allan Pinkerton | |
| 1994 | Saints and Sinnersas Terence | |
| 1993 | The Pelican Briefas Bob Gminski | |
| 1992 | HBO First Lookas | |
| 1992 | Chrome Soldiersas Sheriff Blackwell | |
| 1992 | Diagnosis Murder: Diagnosis of Murderas Eric Walker | |
| 1991 | Oscaras Overton | |
| 1990 | Grim Prairie Talesas Arthur | |
| 1990 | Law & Orderas Dan Jensen | |
| 1990 | Law & Orderas Don Snyder | |
| 1990 | Die Hard 2as Richard Thornberg | |
| 1990 | Buried Aliveas Cort van Owen | |
| 1990 | Max Monroe: Loose Cannonas Sloane | |
| 1989 | Tales from the Cryptas Malcolm Mayflower | |
| 1988 | Intrigueas Doggett | |
| 1988 | Die Hardas Richard Thornburg | |
| 1987 | The Equalizer - The Movie: Blood & Wineas Martin 'Alpha' Loeber | |
| 1986 | No Mercyas Allan Deveneux | |
| 1986 | A Fight for Jennyas Michael Rosen | |
| 1985 | The Twilight Zoneas (segment "The Card") | |
| 1985 | The Twilight Zoneas Brian Wolfe (segment "Night of the Meek") | |
| 1985 | The Equalizeras Gideon | |
| 1985 | The Equalizeras Martin 'Alpha' Loeber | |
| 1985 | Real Geniusas Professor Hathaway | |
| 1984 | Murder, She Wroteas Andy Henley | |
| 1984 | Murder, She Wroteas Greg Dalton | |
| 1984 | Murder, She Wroteas Larry Holleran | |
| 1984 | Ghostbustersas Walter Peck | |
| 1983 | Malibuas Stan Harvey | |
| 1982 | Tomorrow's Childas Jim Spence | |
| 1981 | The House of Mirthas Lawrence Selden | |
| 1978 | Centennialas Jim Lloyd | |
| 1977 | Looking for Mr. Goodbaras James | |
| 1976 | Independenceas Benjamin Rush | |
| 1975 | The Hindenburgas Boerth | |
| 1975 | The Day of the Locustas Tod Hackett | |
| 1974 | The Sugarland Expressas Clovis Poplin | |
| 1973 | Class of '44as Fraternity President | |
| 1972 | The New Centurionsas Johnson | |
| Midnight Men: A John Schlesinger and Michael Childers Storyas |
| 2005 | Headspace...Co-Producer |
