The Big Bang Theory - Season 3 (2009) (season)
USA,
2010, 21 min
VOD (2)
Plots(1)
Leonard is only allowed to bring one guest for his trip to the CERN science complex in Switzerland, and he's forced to choose between Sheldon and Penny. (CBS TV Network)
Cast
![Johnny Galecki](http://image.pmgstatic.com/cache/resized/w88h116crop/files/images/creator/photos/162/418/162418243_9e8a63.png)
Johnny Galecki
Belgium
Best series:
The Big Bang Theory (2007) (series)
My Name Is Earl (2005) (series)
The Norm Show (1999) (series)
![Jim Parsons](http://image.pmgstatic.com/cache/resized/w88h116crop/files/images/creator/photos/165/209/165209443_0b516e.jpg)
Jim Parsons
USA
Best series:
The Simpsons (1989) (series)
The Big Bang Theory (2007) (series)
Staged (2020) (series)
![Kaley Cuoco](http://image.pmgstatic.com/cache/resized/w88h116crop/files/images/creator/photos/165/003/165003805_ca76cf.png)
Kaley Cuoco
USA
Best series:
The Big Bang Theory (2007) (series)
My So-Called Life (1994) (series)
Prison Break (2005) (series)
![Simon Helberg](http://image.pmgstatic.com/cache/resized/w88h116crop/files/images/creator/photos/163/769/163769190_c1d862.jpg)
Simon Helberg
USA
Best series:
The Big Bang Theory (2007) (series)
Dr. Horrible's Sing-Along Blog (2008) (series)
Studio 60 on the Sunset Strip (2006) (series)
![Kunal Nayyar](http://image.pmgstatic.com/cache/resized/w88h116crop/files/images/creator/photos/161/451/161451064_7cb988.jpg)
Kunal Nayyar
UK
Best series:
The Big Bang Theory (2007) (series)
Criminal: UK (2019) (series)
NCIS: Naval Criminal Investigative Service (2003) (series)