Casey Siemaszko

March 17, 1961 (age 65) 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.

His titles like Back to the Future, Back to the Future Part II, and Stand by Me - his biggest roles first.
Last updated: August 18, 2026

Watched: 0/32

Weighted avg: 7.60 /10

1

1

Back to the Future

1985July 1985 by Robert Zemeckis

Minor role as 3-D

Minor role as 3-D

8.07 Excellent+
2

2

Back to the Future Part II

1989November 1989 by Robert Zemeckis

Supporting as 3-D

Supporting as 3-D

7.46 Excellent-
3

3

Stand by Me

1986August 1986 by Rob Reiner

Supporting as Billy Tessio

Supporting as Billy Tessio

7.50 Excellent-
4

4

Young Guns

1988August 1988 by Christopher Cain

Supporting as Charley Bowdre

Supporting as Charley Bowdre

6.23 Good--
5

5

Of Mice and Men

1992September 1992 by Gary Sinise

Supporting as Curley

Supporting as Curley

6.81 Good+
6

6

Three O'Clock High

1987October 1987 by Phil Joanou

Lead role as Jerry Mitchell

Lead role as Jerry Mitchell

6.32 Good--
7

7

The Phantom

1996June 1996 by Simon Wincer

Minor role as Morgan

Minor role as Morgan

4.85 Mediocre++
8

8

Milk Money

1994August 1994 by Richard Benjamin

Supporting as Cash

Supporting as Cash

6.04 Okay++
9

9

Biloxi Blues

1988March 1988 by Mike Nichols

Supporting as Don Carney

Supporting as Don Carney

5.81 Okay+
10

10

Storm of the Century

1999 by Stephen King

Minor role as Alton "Hatch" Hatcher

Minor role as Alton "Hatch" Hatcher

6.04 Okay++
11

11

Secret Admirer

1985June 1985 by David Greenwalt

Supporting as Roger Despard

Supporting as Roger Despard

6.22 Good--
12

12

Class

1983July 1983 by Lewis John Carlino

Minor role as Doug

Minor role as Doug

5.54 Okay
13

13

Bliss

1997April 1997 by Lance Young

Supporting as Tanner

Supporting as Tanner

5.97 Okay++
14

14

Gardens of Stone

1987May 1987 by Francis Ford Coppola

Minor role as Wildman

Minor role as Wildman

5.77 Okay+
15

15

Limbo

1999June 1999 by John Sayles

Supporting as Bobby Gastineau

Supporting as Bobby Gastineau

6.10 Okay++
16

16

Killing Kennedy

2013November 2013 by Nelson McCormick

Supporting as Jack Ruby

Supporting as Jack Ruby

5.55 Okay
17

17

Breaking In

1989October 1989 by Bill Forsyth

Starring as Mike Lafebb

Starring as Mike Lafebb

5.68 Okay+
18

18

Amazing Stories

1986July 1986 by William Dear

Starring as Jonathan

Starring as Jonathan

5.85 Okay+
19

19

The Crew

2000August 2000 by Michael Dinner

Minor role as Young Bobby Bartellemeo

Minor role as Young Bobby Bartellemeo

5.46 Okay
20

20

Black Scorpion

1995August 1995 by Jonathan Winfrey

Minor role as Dr. Goddard / The Breath Taker

Minor role as Dr. Goddard / The Breath Taker

5.60 Okay
21

21

Mistrial

1996November 1996 by Heywood Gould

Minor role as Detective Bobby Zito

Minor role as Detective Bobby Zito

5.58 Okay
22

22

Teresa's Tattoo

1994March 1994 by Julie Cypher

Supporting as Michael

Supporting as Michael

5.64 Okay
23

23

Rose Hill

1997April 1997 by Christopher Cain

Supporting as Fergus Carroll

Supporting as Fergus Carroll

6.02 Okay++
24

24

The Big Slice

1991July 1991 by John Bradshaw

Lead role as Mike Sawyer

Lead role as Mike Sawyer

Needs more reviews
25

25

The Chase

1991February 1991 by Paul Wendkos

Lead role as Hutchinson

Lead role as Hutchinson

Needs more reviews
26

26

Chameleon II: Death Match

1999January 1999 by Russell King

Starring as Jake Booker

Starring as Jake Booker

Needs more reviews
27

27

The Paint Job

1993September 1993 by Michael Taav

Supporting as Cal

Supporting as Cal

Needs more reviews
28

28

My Life's in Turnaround

1994June 1994 by Eric Schaeffer

Starring as Himself

Starring as Himself

Needs more reviews
29

29

Near Mrs.

1992January 1992 by Baz Taylor

Starring as Colin Phipps

Starring as Colin Phipps

Needs more reviews
30

30

Silence of the Heart

1984October 1984 by Richard Michaels

Minor role as Jeff

Minor role as Jeff

Needs more reviews
31

31

Grand Theft Auto: San Andreas - The Introduction

2004November 2004 by Alex Horton

Minor role as Johnny Sindacco (voice) (uncredited)

Minor role as Johnny Sindacco (voice) (uncredited)

Needs more reviews
32

32

Hard Knox

1984August 1984 by Peter Werner

Minor role as Aaron Davis

Minor role as Aaron Davis

Needs more reviews