Known For
Acting
Known Credits
61
Gender
Male
Birthday
April 30, 1975 (51 years old)
Place of Birth
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.
| 2025 | I'm Chevy Chase and You're Notas Self | |
| 2020 | The Little Dog Laughedas Alex | |
| 2020 | Stars in the Houseas Self | |
| 2019 | Unraveling the Mystery: A Big Bang Farewellas Self - Host | |
| 2019 | A Dog's Journeyas Henry Montgomery | |
| 2018 | The Connersas David Healy | |
| 2018 | SciJinksas Self - Host | |
| 2018 | The Cleanseas Paul Berger | |
| 2017 | Ringsas Gabriel Brown | |
| 2016 | Must See TV: An All Star Tribute to James Burrowsas Self | |
| 2015 | The Late Show with Stephen Colbertas Self - Guest | |
| 2015 | Lip Sync Battleas Self | |
| 2013 | CBGBas Terry Ork | |
| 2011 | In Timeas Borel | |
| 2010 | Conanas Self | |
| 2010 | Conanas Self - Guest | |
| 2010 | The Talkas Self | |
| 2009 | Table for Threeas Ted | |
| 2008 | Hancockas Jeremy | |
| 2007 | The Big Bang Theoryas Leonard Hofstadter | |
| 2007 | Boulevard of Broken Dreamsas Self (archive footage) | |
| 2005 | My Name Is Earlas Scott | |
| 2005 | American Dad!as Arnie (voice) | |
| 2005 | Happy Endingsas Miles (uncredited) | |
| 2005 | The Late Late Show with Craig Fergusonas Self | |
| 2004 | LAXas Leland Pressman | |
| 2004 | Entourageas Johnny Galecki | |
| 2004 | Chrystalas Barry | |
| 2003 | Hope & Faithas Jay | |
| 2003 | The Ellen DeGeneres Showas Self | |
| 2003 | Bookiesas Jude | |
| 2001 | Vanilla Skyas Peter Brown | |
| 2001 | Morgan's Ferryas Darcy | |
| 2000 | Bounceas Seth | |
| 2000 | Playing Mona Lisaas Arthur | |
| 1999 | The Norm Showas Dale Stackhouse | |
| 1999 | Family Guyas Leonard Hofstadter (voice) | |
| 1999 | Batman Beyondas Knux (voice) | |
| 1998 | The Opposite of Sexas Jason Bock | |
| 1997 | I Know What You Did Last Summeras Max Neurick | |
| 1997 | Suicide Kingsas Ira Reder | |
| 1997 | Beanas Stingo Wheelie | |
| 1996 | Murder at My Dooras Teddy McNair | |
| 1994 | Without Consentas Marty | |
| 1993 | Sudden Furyas Daniel Hannigan | |
| 1992 | Billyas David MacGregor | |
| 1991 | Civil Warsas Greg Stolbach | |
| 1991 | Backfield in Motionas Tim Seavers | |
| 1990 | In Defense of a Married Manas Eric | |
| 1990 | American Dreameras Danny Nash | |
| 1990 | Blossomas Jason | |
| 1990 | Blind Faithas John Marshall | |
| 1989 | National Lampoon's Christmas Vacationas Rusty Griswold | |
| 1989 | Pranceras Billy Quinn | |
| 1989 | Hardballas | |
| 1988 | Roseanneas David Healy | |
| 1988 | A Night in the Life of Jimmy Reardonas Toby Reardon | |
| 1987 | Murder Ordainedas Doug Rule | |
| 1981 | Entertainment Tonightas Self | |
| 1975 | People's Choice Awardsas Self - Presenter | |
| Peep Showas Mark |
| 2018 | SciJinks...Executive Producer | |
| 2018 | The Cleanse...Producer |
