Johnny Galecki

April 30, 1975 (age 51) Bree, Belgium

Johnny Galecki is a Belgian-born American actor, best known for his roles as David Healy in Roseanne, Rusty Griswold in National Lampoon's Christmas Vacation, and as Leonard Hofstadter in The Big Bang Theory.

His titles like The Big Bang Theory, In Time, and Hancock - his biggest roles first.
Last updated: August 18, 2026

Watched: 0/31

Weighted avg: 6.41 /10

1

1

The Big Bang Theory

2007–2019 by Chuck Lorre

Lead role as Leonard Hofstadter

Lead role as Leonard Hofstadter

7.19 Good++
2

2

In Time

2011October 2011 by Andrew Niccol

Supporting as Borel

Supporting as Borel

6.56 Good-
3

3

Hancock

2008July 2008 by Peter Berg

Minor role as Jeremy

Minor role as Jeremy

5.88 Okay+
4

4

Rings

2017February 2017 by F. Javier Gutiérrez

Starring as Gabriel Brown

Starring as Gabriel Brown

4.50 Mediocre
5

5

National Lampoon's Christmas Vacation

1989November 1989 by Jeremiah S. Chechik

Supporting as Rusty Griswold

Supporting as Rusty Griswold

6.83 Good+
6

6

I Know What You Did Last Summer

1997October 1997 by Jim Gillespie

Supporting as Max Neurick

Supporting as Max Neurick

5.51 Okay
7

7

Vanilla Sky

2001December 2001 by Cameron Crowe

Minor role as Peter Brown

Minor role as Peter Brown

6.40 Good-
8

8

A Dog's Journey

2019May 2019 by Gail Mancuso

Minor role as Henry Montgomery

Minor role as Henry Montgomery

7.71 Excellent
9

9

Bounce

2000November 2000 by Don Roos

Supporting as Seth

Supporting as Seth

5.37 Okay-
10

10

Suicide Kings

1997September 1997 by Peter O'Fallon

Supporting as Ira Reder

Supporting as Ira Reder

6.12 Good--
11

11

The Cleanse

2018May 2018 by Bobby Miller

Lead role as Paul Berger

Lead role as Paul Berger

4.98 Mediocre++
12

12

CBGB

2013October 2013 by Randall Miller

Supporting as Terry Ork

Supporting as Terry Ork

5.91 Okay++
13

13

The Opposite of Sex

1998May 1998 by Don Roos

Supporting as Jason Bock

Supporting as Jason Bock

5.73 Okay+
14

14

Prancer

1989November 1989 by John D. Hancock

Minor role as Billy Quinn

Minor role as Billy Quinn

5.70 Okay+
15

15

Bookies

2003January 2003 by Mark Illsley

Starring as Jude

Starring as Jude

5.95 Okay++
16

16

Table for Three

2009June 2009 by Michael Samonek

Supporting as Ted

Supporting as Ted

4.88 Mediocre++
17

17

A Night in the Life of Jimmy Reardon

1988February 1988 by William Richert

Minor role as Toby Reardon

Minor role as Toby Reardon

5.08 Okay--
18

18

Sudden Fury

1993November 1993 by Craig R. Baxley

Starring as Daniel Hannigan

Starring as Daniel Hannigan

5.68 Okay+
19

19

Chrystal

2004February 2004 by Ray McKinnon

Supporting as Barry

Supporting as Barry

5.77 Okay+
20

20

In Defense of a Married Man

1990October 1990 by Joel Oliansky

Supporting as Eric

Supporting as Eric

5.57 Okay
21

21

Playing Mona Lisa

2000May 2000 by Matthew Huffman

Supporting as Arthur

Supporting as Arthur

5.88 Okay+
22

22

I'm Chevy Chase and You're Not

2025December 2025 by Marina Zenovich

Minor role as Self

Minor role as Self

6.04 Okay++
23

23

Morgan's Ferry

2001November 2001 by Sam Pillsbury

Starring as Darcy

Starring as Darcy

Needs more reviews
24

24

Without Consent

1994October 1994 by Robert Iscove

Supporting as Marty

Supporting as Marty

6.14 Good--
25

25

Must See TV: An All Star Tribute to James Burrows

2016February 2016 by Ryan Polito

Supporting as Self

Supporting as Self

5.43 Okay-
26

26

Murder at My Door

1996October 1996 by Eric Till

Starring as Teddy McNair

Starring as Teddy McNair

Needs more reviews
27

27

Backfield in Motion

1991November 1991 by Richard Michaels

Starring as Tim Seavers

Starring as Tim Seavers

Needs more reviews
28

28

Billy

1992 by Rich Eustis

Lead role as David MacGregor

Lead role as David MacGregor

Needs more reviews
29

29

Blind Faith

1990 by Paul Wendkos

Supporting as John Marshall

Supporting as John Marshall

Needs more reviews
30

30

American Dreamer

1990–1991 by Susan Seeger

Supporting as Danny Nash

Supporting as Danny Nash

Needs more reviews
31

31

SciJinks

Airing since 2018

Lead role as Self - Host

Lead role as Self - Host

Needs more reviews