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.
Back to the Future
(3-D)
Back to the Future Part II
(3-D)
Stand by Me
(Billy Tessio)
Class
(Doug)
Secret Admirer
(Roger Despard)
Young Guns
(Charley Bowdre)
Black Scorpion
(Dr. Goddard / The Breath Taker)
Of Mice and Men
(Curley)
The Phantom
(Morgan)
Three O'Clock High
(Jerry Mitchell)
Gardens of Stone
(Wildman)
Biloxi Blues
(Don Carney)
Breaking In
(Mike Lafebb)
The Crew
(Young Bobby Bartellemeo)
My Life's in Turnaround
(Himself)
The Street Lawyer
(Rafter Mayes)
Teresa's Tattoo
(Michael)
The Paint Job
(Cal)
Miracle of the Heart: A Boys Town Story
(Andy Grainger)
The Chase
(Hutchinson)
Killing Kennedy
(Jack Ruby)
Grand Theft Auto: San Andreas - The Introduction
(Johnny Sindacco (voice) (uncredited))
Silence of the Heart
(Jeff)
The Big Slice
(Mike Sawyer)
Milk Money
(Cash)
Mistrial
(Detective Bobby Zito)
Chameleon II: Death Match
(Jake Booker)
Bliss
(Tanner)
Rose Hill
(Fergus Carroll)
Public Enemies
(Harry Berman)
Amazing Stories: The Movie I
(Jonathan (archive footage))
Hard Knox
(Aaron Davis)
Near Mrs.
(Colin Phipps)
American Harvest
(Dakota)
Together and Alone
(Billy)
Amazing Stories
(Jonathan)
The Boy Who Cried Bitch: The Adolescent Years
Limbo
(Bobby Gastineau)
Napoleon
(Conan (voice))
St. Elsewhere
New Amsterdam
(Peter Huygens)
The Facts of Life
CSI: NY
(Paul Sabotini)
Oz
(Detective Tarnowski)
The Inside
(Billy Ray Pope)
704 Hauser
Hallmark Hall of Fame
(Fergus)
Damages
(Detective Dan Williams)
Storm of the Century
(Alton "Hatch" Hatcher)
Law & Order: Criminal Intent
(Harvey Gruenwald)
Elementary
(Michael McGee)
Person of Interest
(Lester Strickland)
The Blacklist
(Sam Raimo)
Blue Bloods
(Josh Thorp)
White Collar
(Bertie Slavkin)
Amazing Stories
(Jonathan)
Law & Order
(Bart Rainey)
Billions
Unforgettable
(Greg Sartain)
Law & Order
(Defense Attorney Shuman)
The Adventures of Brisco County, Jr.
(Ned Zed)
Law & Order: Special Victims Unit
(EPA Official)
Chicago Sons
NYC 22
(Blume)