The Big Bang Theory Season 6 Episode 18 : The Contractual Obligation Implementation

Leonard, Sheldon and Wolowitz talk to junior high girls about science-related careers; Raj plans a date with Lucy.

NameThe Big Bang Theory Season 6 : The Contractual Obligation Implementation
Air DateMarch 7th, 2013
GenreComedy
NetworkCBS
Production CompaniesChuck Lorre Productions, Warner Bros. Television
DirectorMark Cendrowski
Guest StarsDawson Fletcher, Diamond White, Piper Mackenzie Harris, Brian Posehn, Kate Micucci
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
Melissa Rauch
Melissa Rauch
Bernadette Rostenkowski

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