The Big Bang Theory

The Contractual Obligation Implementation

TV-PG
S6 E18    Mar 6, 2013    20m
7.7
Leonard, Sheldon and Howard give lectures on science to junior high students. The girls ditch work to go to Disneyland. Raj devises a date for Lucy that fixes their social anxiety problems.
Where to Watch The Contractual Obligation Implementation
Cast of The Contractual Obligation Implementation
  • Johnny GaleckiLeonard Hofstadter
  • Jim ParsonsSheldon Cooper
  • Kaley CuocoPenny
  • Simon HelbergHoward Wolowitz
  • Kunal NayyarRajesh Koothrappali
  • Melissa RauchBernadette Rostenkowski
  • Mayim BialikAmy Farrah Fowler
  • Kate MicucciLucy
  • Piper Mackenzie HarrisGirl #1
  • Diamond WhiteGirl #2
  • Dawson FletcherJustin
  • Brian PosehnBert Kibbler
  • Seaonna ChanadetEye Rolling Girl Student (uncredited)
  • Bryan StampLibrary Graduate Student (uncredited)
 
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