John Prosky
Known For
TV
Grey's Anatomy
Mr. Singleton
2005
TV
NCIS
Carl Dalton
2003
TV
The Mentalist
Dr. Evan Quick
2008
TV
Frasier
Preston
1993
TV
House
Dr. Bergin
2004
TV
CSI: Crime Scene Investigation
ADA Vanderpool
2000
TV
Stargate SG-1
Malchus
1997
TV
Boston Legal
Attorney Walt Devlin
2004
TV
Crossing Jordan
Keene's Lawyer
2001
TV
24
Dr. George Ferragamo
2001
TV
JAG
Stewart Grossman
1995
TV
JAG
Jon Barrow
1995
TV
Charmed
Congressman
1998
TV
Star Trek: Voyager
Otrin
1995
TV
American Horror Story
Production Legal Team
2011
TV
The West Wing
Aide
1999
TV
ER
Mr. Brooks
1994
TV
Fringe
Captive Observer
2008
TV
Heroes
Principal
2006
TV
Numb3rs
Kyle Holtzman
2005
Filmography
2025TVSuits LAas Fred2023TVFoundas Kirk Jacobs2020TVPerry Masonas Walter Crippen2019FilmThe Way You Look Tonightas Dad - Richard2018FilmPlease Stand Byas Hospital Administrator2016FilmOuija: Origin of Evilas Doctor Fuller2015FilmThe Park Benchas Professor McIntyre2015FilmStraight Outta Comptonas Young Doctor2015TVMarvel's Agent Carteras Walt Cooper2013TVThe Fostersas Dr. Danville2013FilmK-11as Simon Schwartz2012TVScandalas Senator Gibson2012TVTouchas Lawrence Pearl2012FilmThe Devil Insideas Father Christopher Aimes2011TVAmerican Horror Storyas Production Legal Team2011TVRevengeas Brenda Evans / Oscar Chapman2011FilmJust Peckas Dr. Lipschitz2010TVLaw & Order: LAas Dr. Gouldin2010TVThe Gatesas Lloyd Foster2010FilmRadio Free Albemuthas Dr. Goldfarb2009TVFlashForwardas Mr. Dunkirk2008TVEleventh Houras Chase Coleman2008TVThe Mentalistas Dr. Evan Quick2008TVFringeas Captive Observer2008TVTrue Bloodas Duke Smith2008TVEli Stoneas Alan Cooke2007TVPrivate Practiceas Jerry Murphy2007FilmThe Dukesas Brad2006TVHeroesas Principal2006TVBrothers and Sistersas Ron Robinson2006FilmDerek & Simon: A Bee and a Cigaretteas Concierge2005TVMy Name Is Earlas Mr. Stevens2005TVThe Closeras Mr. Banks2005TVGrey's Anatomyas Mr. Singleton2005TVNumb3rsas Kyle Holtzman2005TVMediumas Tom Van Dyke2005FilmGone But Not Forgottenas Wayne Turner2005FilmHeart of the Beholderas Reverend Brewer2004TVHouseas Dr. Bergin2004TVBoston Legalas Attorney Walt Devlin2004FilmThe Last Shotas Hotel Manager2004TVCSI: NYas Museum Administrator2004TVVeronica Marsas Ethan Lavoie2004TVSecond Time Aroundas Mr. Seabrooks2003TVNCISas Carl Dalton2003TVPeacemakersas Tipton2003TVNip/Tuckas Glen Easley2003FilmHulkas Atheon Technician2003TVOliver Beeneas David2003FilmBringing Down the Houseas Male Commentator2003FilmCock & Bull Storyas Tom O'Malley2002TVAmerican Dreamsas Councilman Marv Acker2002FilmGroom Lakeas Hester Dealt2001TVThe Bernie Mac Showas Father2001TV24as Dr. George Ferragamo2001TVCrossing Jordanas Keene's Lawyer2001FilmA.I. Artificial Intelligenceas Mr. Williamson, the Bellman2000FilmLost Soulsas Orderly2000TVCSI: Crime Scene Investigationas ADA Vanderpool2000FilmAn American Daughteras Tom Reynolds2000TVTitusas Dr. Meighan1999TVThe West Wingas Aide1999FilmBowfingeras MindHead Executive1999FilmGoodbye Loveras Forensic Cop1998FilmBrown's Requiemas Larkin1998TVCharmedas Congressman1998TVFelicityas Dr. Stern1998FilmPermanent Midnightas Cop1998FilmThe Advanced Guardas Alpha the Alien Commander1998FilmThe Housekeeperas Husband1997TVBrooklyn Southas Mr. Bloomford1997FilmFire Down Belowas Aide #11997TVStargate SG-1as Malchus1997TVBeyond Belief: Fact or Fictionas Earl Potter (segment "Scribbles")1997TVJust Shoot Me!as Norman1997TVThe Practiceas EPA Atty. Mitchell Kravits1996FilmThe Cold Equationsas Markham1996TVProfileras Salinger1996TVThe Jamie Foxx Showas Lottery Official1996FilmThe Nutty Professoras Doctor1996FilmThe Phantomas Cycle Cop1996FilmForgotten Sinsas Polygraph Technician1996TVMoeshaas Professor Ward1995TVJAGas Stewart Grossman1995TVMurder Oneas Mark Smith, Esq.1995FilmSketch Artist II: Hands That Seeas Sherman Bochs1995TVStar Trek: Voyageras Otrin1994FilmFinal Missionas Sergeant Wyatt1994TVTouched by an Angelas Greg Hatcher1994TVERas Mr. Brooks1994TVChicago Hopeas Bart Simon1994TVMy So-Called Lifeas Ted1993TVNYPD Blueas Robert Horowitz1993TVFrasieras Preston1993TVStar Trek: Deep Space Nineas Brathaw1992FilmInterceptoras Collins1992TVBob1991FilmLate for Dinneras Officer Tom Bostich1991FilmFlight of Black Angelas Controller1990FilmIn the Line of Duty: A Cop for the Killingas Don1990TVBeverly Hills, 90210as Duke Weatherill1986FilmA Case of Deadly Forceas Phil Cochran