Happy birthday, Kaley Cuoco! The actress is celebrating her 30th birthday.
Cuoco is best known to the ComicBook.com community for her role as Penny on The Big Bang Theory. Her fame spawned from her role as Bridgit Hennessy on ABC's 8 Simple Rules, though.
Prior to her acting fame, Cuoco was a nationally ranked amateur tennis player and she made her film debut in the 1995 movie, Virtuosity.
Happy birthday, Kaley Cuoco!