The Big Bang Theory/The Good Guy Fluctuation
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The Good Guy Fluctuation is the seventh episode of the fifth season of The Big Bang Theory, and the ninety-fourth episode overall.
Starring: Johnny Galecki (Dr. Leonard Hofstadter), Jim Parsons (Dr. Sheldon Cooper), Kaley Cuoco (Penny), Simon Helberg (Howard Wolowitz), Kunal Nayyar (Dr. Rajesh "Raj" Koothrappali), Melissa Rauch (Bernadette Rostenkowski)