Kaley Cuoco and Melissa Rauch had no choice but to become best friends — they portrayed the roles of Penny and Bernadette on ...

On The Official Big Bang Theory Podcast, Chuck Lorre said that Kaley Cuoco's Penny wasn't fully developed in the earlier ...

Prior to Kaley Cuoco, actress Amanda Walsh was cast to play Katie, “a street-hardened tough-as-nails woman with a vulnerable ...

American sitcom The Big Bang Theory centers around friends Leonard Hofstadter (Johnny Galecki), Sheldon Cooper (Jim Parsons), Penny Teller ... Rostenkowski (Melissa Rauch) and Stuart Bloom ...

The Big Bang Theory creator Chuck Lorre and former WB TV chair Peter Roth discuss Kaley Cuoco's Penny and not doing right by her early on.

ET chats with 'The Big Bang Theory's Melissa Rauch and Kunal Nayyar about teaming up for ‘Night Court,’ which airs Tuesdays on NBC. The 'Night Court’ revival premieres tonight on NBC.

The Big Bang Theory starred Jim Parsons and Johnny Galecki as scientists sharing an apartment. Kaley Cuoco played their neighbor, Penny. Mayim Bialik and Melissa Rauch joined the cast later.

"We did the very clichéd, in the beginning, goofy blonde who says foolish things," Lorre says of the character Penny.