The Big Bang Theory Season 4 Episode 15 : The Benefactor Factor

A wealthy donor to the university makes Leonard consider how far he's willing to go for the sake of science.

NameThe Big Bang Theory Season 4 Episode 15: The Benefactor Factor
Air DateFebruary 10th, 2011
GenreComedy
NetworkCBS
Production CompaniesChuck Lorre Productions, Warner Bros. Television
DirectorMark Cendrowski
Guest StarsJessica Walter, Joshua Malina
Plot Keywordsnerd, geek, friends, scientist, science, sitcom
Simon Helberg
Simon Helberg
Howard Wolowitz
Johnny Galecki
Johnny Galecki
Leonard Hofstadter
Jim Parsons
Jim Parsons
Sheldon Cooper
Kunal Nayyar
Kunal Nayyar
Rajesh Koothrappali
Kaley Cuoco
Kaley Cuoco
Penny
Mayim Bialik
Mayim Bialik
Amy Farrah Fowler

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