
Acting
Casey Siemaszko
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
Full filmography

Person of Interest
2011
ACTION
The Blacklist
2013
DRAMA
Blue Bloods
2010
CRIME
Law & Order: Criminal Intent
2001
DRAMA
Elementary
2012
DRAMA
CSI: NY
2004
CRIME
Billions
2016
DRAMA
White Collar
2009
CRIME
Unforgettable
2011
CRIME
St. Elsewhere
1982
DRAMA
Damages
2007
MYSTERY
Oz
1997
CRIME
The Facts of Life
1979
DRAMA
Back to the Future
1985
ADVENTURE
Amazing Stories
1985
SCI-FI
Back to the Future Part II
1989
ADVENTURE
The Adventures of Brisco County, Jr.
1993
WESTERN
Stand by Me
1986
DRAMA
Storm of the Century
1999
SCI-FI
Public Enemies
2009
CRIME
New Amsterdam
2008
DRAMA
Young Guns
1988
WESTERN
The Inside
2005
DRAMA
The Phantom
1996
ADVENTURE
Of Mice and Men
1992
DRAMA
Biloxi Blues
1988
COMEDY
Three O'Clock High
1987
COMEDY
Milk Money
1994
COMEDY
Class
1983
COMEDY