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.
Cast

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

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

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
Unknown

Limbo
Bobby Gastineau

Napoleon
Conan (voice)

Grand Theft Auto: San Andreas - The Introduction
Johnny Sindacco (voice) (uncredited)