The Big Bang Theory/The Procreation Calculation
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The Procreation Calculation is the third episode of the twelfth season of The Big Bang Theory, and the two hundred fifty-eighth episode overall.
Starring: Johnny Galecki (Dr. Leonard Hofstadter), Jim Parsons (Dr. Sheldon Cooper), Kaley Cuoco (Penny Hofstadter), Simon Helberg (Howard Wolowitz), Kunal Nayyar (Dr. Rajesh "Raj" Koothrappali), Mayim Bialik (Dr. Amy Farrah Fowler), Melissa Rauch (Dr. Bernadette Rostenkowski-Wolowitz), Kevin Sussman (Stuart Bloom)
Special Guest Star: Keith Carradine (Wyatt)
Co-Starring: Matt Knudsen (Waiter)