Johnny Galecki
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.
Known for
- Family Guy (1999)
- The Late Show with Stephen Colbert (2015)
- American Dad! (2005)
- Conan (2010)
- Conan (2010)
- The Late Late Show with Craig Ferguson (2005)
- The Big Bang Theory (2007)
- The Ellen DeGeneres Show (2003)
- Entourage (2004)
- My Name Is Earl (2005)
- The Talk (2010)
- Lip Sync Battle (2015)
- The Conners (2018)
- Batman Beyond (1999)
- Stars in the House (2020)
- Blossom (1990)
- Hope & Faith (2003)
- In Time (2011)
- Entertainment Tonight (1981)
- People's Choice Awards (1975)