Acting
Casey Siemaszko
Born 1961-03-17
Chicago, Illinois, USA
Department: Acting
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
Prominent works featuring Casey Siemaszko
Movie
Quick View
Back to the Future
1985
TMDB4.2
Movie
Quick View
Back to the Future Part II
1989
TMDB3.9
TV
Quick View
Law & Order: Special Victims Unit
1999
TMDB4.0
Movie
Quick View
Stand by Me
1986
TMDB3.9
TV
Quick View
The Blacklist
2013
TMDB3.8
Movie
Quick View
Public Enemies
2009
TMDB3.4
TV
Quick View
Law & Order
1990
TMDB3.6
TV
Quick View
Person of Interest
2011
TMDB4.0
TV
Quick View
Elementary
2012
TMDB3.8
TV
Quick View
White Collar
2009
TMDB4.1
Filmography & Credits
Complete career catalog (63 titles)
| Poster | Title | Character / Role | Type | Year |
|---|---|---|---|---|
 | Billions | Seids | TV Series | 2016 |
 | Killing Kennedy | Jack Ruby | Movie | 2013 |
 | The Blacklist | Sam Raimo | TV Series | 2013 |
 | Elementary | Michael McGee | TV Series | 2012 |
 | NYC 22 | Blume | TV Series | 2012 |
 | Person of Interest | Lester Strickland | TV Series | 2011 |
 | Unforgettable | Lt. Greg Sartain | TV Series | 2011 |
 | Blue Bloods | Josh Thorp | TV Series | 2010 |
 | White Collar | Bertie Slavkin | TV Series | 2009 |
 | Public Enemies | Harry Berman | Movie | 2009 |
 | New Amsterdam | Peter Huygens | TV Series | 2008 |
 | Damages | Detective Dan Williams | TV Series | 2007 |
 | The Boy Who Cried Bitch: The Adolescent Years | Self / Appearance | Movie | 2007 |
 | The Inside | Billy Ray Pope | TV Series | 2005 |
 | Grand Theft Auto: San Andreas - The Introduction | Johnny Sindacco (voice) (uncredited) | Movie | 2004 |
 | CSI: NY | Paul Sabotini | TV Series | 2004 |
| The Street Lawyer | Rafter Mayes | Movie | 2003 | |
 | Law & Order: Criminal Intent | Harvey Gruenwald | TV Series | 2001 |
 | The Crew | Young Bobby Bartellemeo | Movie | 2000 |
 | Law & Order: Special Victims Unit | EPA Official | TV Series | 1999 |
 | Limbo | Bobby Gastineau | Movie | 1999 |
 | Storm of the Century | Alton "Hatch" Hatcher | TV Series | 1999 |
 | Chameleon II: Death Match | Jake Booker | Movie | 1999 |
 | Together and Alone | Billy | Movie | 1998 |
 | Oz | Detective Tarnowski | TV Series | 1997 |
 | Rose Hill | Fergus Carroll | Movie | 1997 |
 | Bliss | Tanner | Movie | 1997 |
 | Chicago Sons | Self / Appearance | TV Series | 1997 |
 | Mistrial | Detective Bobby Zito | Movie | 1996 |
 | The Phantom | Morgan | Movie | 1996 |
 | Black Scorpion | Dr. Goddard / The Breath Taker | Movie | 1995 |
 | Napoleon | Conan (voice) | Movie | 1995 |
 | Milk Money | Cash | Movie | 1994 |
 | My Life's in Turnaround | Himself | Movie | 1994 |
 | 704 Hauser | Self / Appearance | TV Series | 1994 |
 | Teresa's Tattoo | Michael | Movie | 1994 |
 | The Paint Job | Cal | Movie | 1993 |
 | The Adventures of Brisco County, Jr. | Ned Zed | TV Series | 1993 |
 | Of Mice and Men | Curley | Movie | 1992 |
 | Near Mrs. | Colin Phipps | Movie | 1992 |
 | The Big Slice | Mike Sawyer | Movie | 1991 |
 | The Chase | Hutchinson | Movie | 1991 |
 | Law & Order | Bart Rainey | TV Series | 1990 |
| Law & Order | Defense Attorney Shuman | TV Series | 1990 |
 | Back to the Future Part II | 3-D | Movie | 1989 |
 | Breaking In | Mike Lafebb | Movie | 1989 |
 | Young Guns | Charley Bowdre | Movie | 1988 |
 | Biloxi Blues | Don Carney | Movie | 1988 |
 | Three O'Clock High | Jerry Mitchell | Movie | 1987 |
 | Gardens of Stone | Wildman | Movie | 1987 |
 | American Harvest | Dakota | Movie | 1987 |
 | Stand by Me | Billy Tessio | Movie | 1986 |
 | Amazing Stories | Jonathan | Movie | 1986 |
 | Miracle of the Heart: A Boys Town Story | Andy Grainger | Movie | 1986 |
 | Amazing Stories | Jonathan | TV Series | 1985 |
 | Back to the Future | 3-D | Movie | 1985 |
 | Secret Admirer | Roger Despard | Movie | 1985 |
 | Silence of the Heart | Jeff | Movie | 1984 |
 | Hard Knox | Aaron Davis | Movie | 1984 |
 | Class | Doug | Movie | 1983 |
 | St. Elsewhere | Rick Messina | TV Series | 1982 |
 | The Facts of Life | Self / Appearance | TV Series | 1979 |
 | Hallmark Hall of Fame | Fergus | TV Series | 1951 |