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.
Known For
Stand by Me
(1986)
Billy Tessio
Back to the Future
(1985)
3-D
Back to the Future Part II
(1989)
3-D
Public Enemies
(2009)
Harry Berman
Of Mice and Men
(1992)
Curley
Biloxi Blues
(1988)
Don Carney
The Phantom
(1996)
Morgan
Young Guns
(1988)
Charley Bowdre
Secret Admirer
(1985)
Roger Despard
Class
(1983)
Doug
Bliss
(1997)
Tanner
Gardens of Stone
(1987)
Wildman
Three O'Clock High
(1987)
Jerry Mitchell
Milk Money
(1994)
Cash
The Crew
(2000)
Young Bobby Bartellemeo
Amazing Stories
(1986)
Jonathan
Full Filmography
Acting
Class
(1983)
Doug
Hard Knox
(1984)
Aaron Davis
Silence of the Heart
(1984)
Jeff
Back to the Future
(1985)
3-D
Secret Admirer
(1985)
Roger Despard
Stand by Me
(1986)
Billy Tessio
Amazing Stories
(1986)
Jonathan
Miracle of the Heart: A Boys Town Story
(1986)
Andy Grainger
Three O'Clock High
(1987)
Jerry Mitchell
Gardens of Stone
(1987)
Wildman
American Harvest
(1987)
Dakota
Young Guns
(1988)
Charley Bowdre
Biloxi Blues
(1988)
Don Carney
Back to the Future Part II
(1989)
3-D
Breaking In
(1989)
Mike Lafebb
The Chase
(1991)
Hutchinson
The Big Slice
(1991)
Mike Sawyer
Of Mice and Men
(1992)
Curley
Near Mrs.
(1992)
Colin Phipps
The Paint Job
(1993)
Cal
My Life's in Turnaround
(1994)
Himself
Teresa's Tattoo
(1994)
Michael
Milk Money
(1994)
Cash
Black Scorpion
(1995)
Dr. Goddard / The Breath Taker
Napoleon
(1995)
Conan (voice)
The Phantom
(1996)
Morgan
Mistrial
(1996)
Detective Bobby Zito
Rose Hill
(1997)
Fergus Carroll
Bliss
(1997)
Tanner
Together and Alone
(1998)
Billy
Chameleon II: Death Match
(1999)
Jake Booker
Limbo
(1999)
Bobby Gastineau
The Crew
(2000)
Young Bobby Bartellemeo
The Street Lawyer
(2003)
Rafter Mayes
Grand Theft Auto: San Andreas - The Introduction
(2004)
Johnny Sindacco (voice) (uncredited)
The Boy Who Cried Bitch: The Adolescent Years
(2007)
Public Enemies
(2009)
Harry Berman
Killing Kennedy
(2013)
Jack Ruby