Person
Casey Siemaszko
Acting · Born 1961-03-17 · Chicago, Illinois, USA
Biography
Casey Siemaszko (born Kazimierz A. Siemaszko) is a Polish-American actor and the brother of actress Nina Siemaszko. The son of a fighter in the Polish Underground who survived the Sachsenhausen concentration camp, Siemaszko narrated the 1998 feature, The Polish-Americans. Siemaszko was a graduate of the Goodman School of Drama at DePaul University in Chicago, which his sister, Nina Siemaszko later also attended. His acting career consists of smaller roles in dozen of popular films, including Back to the Future, Young Guns, Silence of the Heart, Of Mice and Men, Killing Kennedy, Back to the Future Part II and Stand By Me.
Known for
Law & Order: Special Victims Unit
EPA Official
Law & Order
Bart Rainey
The Blacklist
Sam Raimo
Law & Order: Criminal Intent
Harvey Gruenwald
Blue Bloods
Josh Thorp
Elementary
Michael McGee
Person of Interest
Lester Strickland
White Collar
Bertie Slavkin
Billions
Seids
CSI: NY
Paul Sabotini
Filmography
- 2016BillionsSeids
- 2013Killing KennedyJack Ruby
- 2013The BlacklistSam Raimo
- 2012ElementaryMichael McGee
- 2012NYC 22Blume
- 2011Person of InterestLester Strickland
- 2011UnforgettableLt. Greg Sartain
- 2010Blue BloodsJosh Thorp
- 2009White CollarBertie Slavkin
- 2009Public EnemiesHarry Berman
- 2008New AmsterdamPeter Huygens
- 2007DamagesDetective Dan Williams
- 2007The Boy Who Cried Bitch: The Adolescent Years
- 2005The InsideBilly Ray Pope
- 2004Grand Theft Auto: San Andreas - The IntroductionJohnny Sindacco (voice) (uncredited)
- 2004CSI: NYPaul Sabotini
- 2003The Street LawyerRafter Mayes
- 2001Law & Order: Criminal IntentHarvey Gruenwald
- 2000The CrewYoung Bobby Bartellemeo
- 1999Law & Order: Special Victims UnitEPA Official
- 1999LimboBobby Gastineau
- 1999Storm of the CenturyAlton "Hatch" Hatcher
- 1999Chameleon II: Death MatchJake Booker
- 1998Together and AloneBilly
- 1997OzDetective Tarnowski
- 1997Rose HillFergus Carroll
- 1997BlissTanner
- 1997Chicago Sons
- 1996MistrialDetective Bobby Zito
- 1996The PhantomMorgan
- 1995Black ScorpionDr. Goddard / The Breath Taker
- 1995NapoleonConan (voice)
- 1994Milk MoneyCash
- 1994My Life's in TurnaroundHimself
- 1994704 Hauser
- 1994Teresa's TattooMichael
- 1993The Paint JobCal
- 1993The Adventures of Brisco County, Jr.Ned Zed
- 1992Of Mice and MenCurley
- 1992Near Mrs.Colin Phipps
- 1991The Big SliceMike Sawyer
- 1991The ChaseHutchinson
- 1990Law & OrderBart Rainey
- 1989Back to the Future Part II3-D
- 1989Breaking InMike Lafebb
- 1988Young GunsCharley Bowdre
- 1988Biloxi BluesDon Carney
- 1987Three O'Clock HighJerry Mitchell
- 1987Gardens of StoneWildman
- 1987American HarvestDakota
- 1986Stand by MeBilly Tessio
- 1986Amazing StoriesJonathan
- 1986Miracle of the Heart: A Boys Town StoryAndy Grainger
- 1985Amazing StoriesJonathan
- 1985Back to the Future3-D
- 1985Secret AdmirerRoger Despard
- 1984Silence of the HeartJeff
- 1984Hard KnoxAaron Davis
- 1983ClassDoug
- 1982St. ElsewhereRick Messina
- 1979The Facts of Life
- 1951Hallmark Hall of FameFergus
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