Known For
Acting
Known Credits
63
Gender
Male
Birthday
March 17, 1961 (65 years old)
Place of Birth
Chicago, Illinois, USA
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.
| 2016 | Billionsas Seids | |
| 2013 | Killing Kennedyas Jack Ruby | |
| 2013 | The Blacklistas Sam Raimo | |
| 2012 | Elementaryas Michael McGee | |
| 2012 | NYC 22as Blume | |
| 2011 | Person of Interestas Lester Strickland | |
| 2011 | Unforgettableas Lt. Greg Sartain | |
| 2010 | Blue Bloodsas Josh Thorp | |
| 2009 | White Collaras Bertie Slavkin | |
| 2009 | Public Enemiesas Harry Berman | |
| 2008 | New Amsterdamas Peter Huygens | |
| 2007 | Damagesas Detective Dan Williams | |
| 2007 | The Boy Who Cried Bitch: The Adolescent Yearsas | |
| 2005 | The Insideas Billy Ray Pope | |
| 2004 | Grand Theft Auto: San Andreas - The Introductionas Johnny Sindacco (voice) (uncredited) | |
| 2004 | CSI: NYas Paul Sabotini | |
| 2003 | The Street Lawyeras Rafter Mayes | |
| 2001 | Law & Order: Criminal Intentas Harvey Gruenwald | |
| 2000 | The Crewas Young Bobby Bartellemeo | |
| 1999 | Law & Order: Special Victims Unitas EPA Official | |
| 1999 | Limboas Bobby Gastineau | |
| 1999 | Storm of the Centuryas Alton "Hatch" Hatcher | |
| 1999 | Chameleon II: Death Matchas Jake Booker | |
| 1998 | Together and Aloneas Billy | |
| 1997 | Ozas Detective Tarnowski | |
| 1997 | Rose Hillas Fergus Carroll | |
| 1997 | Blissas Tanner | |
| 1997 | Chicago Sonsas | |
| 1996 | Mistrialas Detective Bobby Zito | |
| 1996 | The Phantomas Morgan | |
| 1995 | Black Scorpionas Dr. Goddard / The Breath Taker | |
| 1995 | Napoleonas Conan (voice) | |
| 1994 | Milk Moneyas Cash | |
| 1994 | My Life's in Turnaroundas Himself | |
| 1994 | 704 Hauseras | |
| 1994 | Teresa's Tattooas Michael | |
| 1993 | The Paint Jobas Cal | |
| 1993 | The Adventures of Brisco County, Jr.as Ned Zed | |
| 1992 | Of Mice and Menas Curley | |
| 1992 | Near Mrs.as Colin Phipps | |
| 1991 | The Big Sliceas Mike Sawyer | |
| 1991 | The Chaseas Hutchinson | |
| 1990 | Law & Orderas Bart Rainey | |
| 1990 | Law & Orderas Defense Attorney Shuman | |
| 1989 | Back to the Future Part IIas 3-D | |
| 1989 | Breaking Inas Mike Lafebb | |
| 1988 | Young Gunsas Charley Bowdre | |
| 1988 | Biloxi Bluesas Don Carney | |
| 1987 | Three O'Clock Highas Jerry Mitchell | |
| 1987 | Gardens of Stoneas Wildman | |
| 1987 | American Harvestas Dakota | |
| 1986 | Stand by Meas Billy Tessio | |
| 1986 | Amazing Storiesas Jonathan | |
| 1986 | Miracle of the Heart: A Boys Town Storyas Andy Grainger | |
| 1985 | Amazing Storiesas Jonathan | |
| 1985 | Back to the Futureas 3-D | |
| 1985 | Secret Admireras Roger Despard | |
| 1984 | Silence of the Heartas Jeff | |
| 1984 | Hard Knoxas Aaron Davis | |
| 1983 | Classas Doug | |
| 1982 | St. Elsewhereas Rick Messina | |
| 1979 | The Facts of Lifeas | |
| 1951 | Hallmark Hall of Fameas Fergus |
