The Big Bang Theory

The Spaghetti Catalyst

S3 E2020mMay 3, 2010 3.9

When Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy.

Up NextS3 E21 · The Plimpton Stimulation

Cast

Johnny GaleckiLeonard Hofstadter
Jim ParsonsSheldon Cooper
Kaley CuocoPenny
Simon HelbergHoward Wolowitz
Kunal NayyarRajesh Koothrappali
Melissa RauchBernadette Rostenkowski
Mayim BialikAmy Farrah Fowler

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