The Big Bang Theory Season 7 Episode 7 The Proton Displacement ( Air Date 2013-11-07 ) Genre Comedy category. Overview "Sheldon seeks payback when Arthur "Professor Proton" Jeffries asks Leonard for help on a project instead of him. Raj gets upset at Howard for crashing his night with the girls.".
The Big Bang Theory Season 7 Episode 7 The Proton Displacement
Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Melissa Rauch, Mayim Bialik
Director: John DeChene, Adam Faberman, Rick Puccio, Richard Price, Jamie Hitchcock, Brian W. Armstrong, Shannon Timberlake, Tara Hernandez, Anthony Del Broccolo, Jeremy Howe, Andy Gordon, Alexandra Barbone, Tara Treacy, Linda Cowan, Ryan Berdan, Robinson Green, Justin D. Hetzel, Peter Chakos, Sylvia Surdu, Charlie Back, Faye Woods, Eric Kaplan, Steve Holland, David Goetsch, Maria Ferrari, Todd Morris, Vikki McCarter, Robinson Green, Kristy Cecil, John Greene