Casey Siemaszko

Mar 17, 1961 (64 years old) in 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.

Known For

Law & Order: Special Victims Unit

EPA Official

Law & Order

Bart Rainey

The Blacklist

Sam Raimo

Law & Order: Criminal Intent

Harvey Gruenwald

CSI: NY

Paul Sabotini

Damages

Detective Dan Williams

Blue Bloods

Josh Thorp

Amazing Stories

Jonathan

Billions

Elementary

Michael McGee

Credits

Amazing Stories: The Movie I Future

Jonathan (archive footage)

★ NR
Billions 2016

★ 7.7
Killing Kennedy 2013

Jack Ruby

★ 5.8
The Blacklist 2013

Sam Raimo

★ 7.6
Elementary 2012

Michael McGee

★ 7.6
NYC 22 2012

Blume

★ 6.2
Person of Interest 2011

Lester Strickland

★ 8.1
Unforgettable 2011

Greg Sartain

★ 7.2
Blue Bloods 2010

Josh Thorp

★ 7.8
White Collar 2009

Bertie Slavkin

★ 8.2
Public Enemies 2009

Harry Berman

★ 6.7
New Amsterdam 2008

Peter Huygens

★ 7.3
Damages 2007

Detective Dan Williams

★ 7.5
The Boy Who Cried Bitch: The Adolescent Years 2007

★ NR
The Inside 2005

Billy Ray Pope

★ 7.2
Grand Theft Auto: San Andreas - The Introduction 2004

Johnny Sindacco (voice) (uncredited)

★ 9
CSI: NY 2004

Paul Sabotini

★ 7.4
The Street Lawyer 2003

Rafter Mayes

★ NR
Law & Order: Criminal Intent 2001

Harvey Gruenwald

★ 7.6
The Crew 2000

Young Bobby Bartellemeo

★ 5.5
Law & Order: Special Victims Unit 1999

EPA Official

★ 7.9
Limbo 1999

Bobby Gastineau

★ 6.6
Storm of the Century 1999

Alton "Hatch" Hatcher

★ 7
Chameleon II: Death Match 1999

Jake Booker

★ 2.8
Together and Alone 1998

Billy

★ 6
Oz 1997

Detective Tarnowski

★ 8
Rose Hill 1997

Fergus Carroll

★ 6.5
Bliss 1997

Tanner

★ 5.5
Chicago Sons 1997

★ 8.5
Mistrial 1996

Detective Bobby Zito

★ 5
The Phantom 1996

Morgan

★ 5.3
Black Scorpion 1995

Dr. Goddard / The Breath Taker

★ 5.7
Napoleon 1995

Conan (voice)

★ 6.1
Milk Money 1994

Cash

★ 6.4
My Life's in Turnaround 1994

Himself

★ 4.7
704 Hauser 1994

★ NR
Teresa's Tattoo 1994

Michael

★ 4.9
The Paint Job 1993

Cal

★ 4.2
The Adventures of Brisco County, Jr. 1993

Ned Zed

★ 7.1
Of Mice and Men 1992

Curley

★ 7.2
Near Mrs. 1992

Colin Phipps

★ 5.5
The Big Slice 1991

Mike Sawyer

★ 3.7
The Chase 1991

Hutchinson

★ 3
Law & Order 1990

Bart Rainey

★ 7.4
Back to the Future Part II 1989

3-D

★ 7.8
Breaking In 1989

Mike Lafebb

★ 5.7
Biloxi Blues 1988

Don Carney

★ 6.3
Young Guns 1988

Charley Bowdre

★ 6.7
Three O'Clock High 1987

Jerry Mitchell

★ 6.8
Gardens of Stone 1987

Wildman

★ 6.2
American Harvest 1987

Dakota

★ NR
Stand by Me 1986

Billy Tessio

★ 7.9
Amazing Stories 1986

Jonathan

★ 6.6
Miracle of the Heart: A Boys Town Story 1986

Andy Grainger

★ NR
Back to the Future 1985

3-D

★ 8.3
Secret Admirer 1985

Roger Despard

★ 6.8
Silence of the Heart 1984

Jeff

★ 6.4
Hard Knox 1984

Aaron Davis

★ 5.7
Class 1983

Doug

★ 6
St. Elsewhere 1982

★ 5.5
The Facts of Life 1979

★ 7
Hallmark Hall of Fame 1951

Fergus

★ 8.6