Penny's Mysterious Last Name
Friday, Oct 4, 2013, 3:35 pm
The male characters on Big Bang Theory are all known by their first and last names. Leonard and Sheldon's next-door neighbor Penny is only known by her first name. The show has been on the air since 2007, but the writers have never revealed Penny's last name. Her portrayer, Kaley Cuoco, insists that Penny's last name remain a secret.
This Post Belongs To 15 Things You Didn't Know About The Big Bang Theory
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