The Big Bang Theory

The Imitation Perturbation

TV-PG
S12 • E6    Oct 24, 2018    20m
8.2
When Howard dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny's Halloween party. Leonard is shocked that Penny doesn't remember their first kiss.

Where to Watch The Imitation Perturbation

Cast of The Imitation Perturbation

  • Johnny GaleckiLeonard Hofstadter
  • Jim ParsonsSheldon Cooper
  • Kaley CuocoPenny
  • Simon HelbergHoward Wolowitz
  • Kunal NayyarRajesh Koothrappali
  • Melissa RauchBernadette Rostenkowski
  • Mayim BialikAmy Farrah Fowler
  • Kevin SussmanStuart Bloom
  • Pamela AdlonHalley Wolowitz (voice)
  • David TheuneDr. Graybel
  • Rati GuptaAnu
  • Brian PosehnBert Kibbler

 

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