The Big Bang Theory

Season 4 Episode 17

The Toast Derivation

20
Aired Thursday 8:00 PM Feb 24, 2011 on CBS
AIRED:
8.2
out of 10
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Episode Summary

Told Leonard is the center of the gang and miffed that they've started hanging out at Raj's, Sheldon seeks to form a new group of friends of which he can be the center.

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Johnny Galecki

Johnny Galecki

Leonard Hofstadter

Jim Parsons

Jim Parsons

Sheldon Cooper

Kaley Cuoco

Kaley Cuoco

Penny

Simon Helberg

Simon Helberg

Howard Wolowitz

Kunal Nayyar

Kunal Nayyar

Rajesh Koothrappali

Melissa Rauch

Melissa Rauch

Bernadette Rostenkowski

LeVar Burton

LeVar Burton

Himself

Special Guest Star

Aarti Mann

Aarti Mann

Priya Koothrappali

Recurring Role

John Ross Bowie

John Ross Bowie

Barry Kripke

Recurring Role

Kevin Sussman

Kevin Sussman

Stuart Bloom

Recurring Role

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Trivia, Notes, Quotes and Allusions

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