The Big Bang Theory

The Explosion Implosion

TV-PG
S11 E4    Oct 15, 2017    21m
7.1
As Howard worries about fatherhood, he and Sheldon bond when they jointly assemble a model rocket. Meanwhile, Penny bonds with Leonard's mother, Beverly, much to his concern.
Cast of The Explosion Implosion
  • Johnny GaleckiLeonard Hofstadter
  • Jim ParsonsSheldon Cooper
  • Kaley CuocoPenny
  • Simon HelbergHoward Wolowitz
  • Kunal NayyarRajesh Koothrappali
  • Melissa RauchBernadette Rostenkowski
  • Mayim BialikAmy Farrah Fowler
  • Dana L. WilsonDr. Sanders
  • Michael Patrick McGillPolice Officer
  • Christine BaranskiBeverly Hofstadter
 
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