Yeardley Smith – Sandy
“The Einstein Approximation” is a 2010 episode that saw Yeardley Smith’s guest-appearing on The Big Bang Theory. This would be the episode where Sheldon left to work with Penny at the Cheesecake Factory. Yep, that did indeed happen.
Smith is the popular actress that we know as Lisa Simpson from the famous and long-running show, The Simpsons. Other than acting, she is a writer and a comedian.
Yeardley Smith – Sandy
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