Some of the best plot twists on The Big Bang Theory altered the characters’ storylines and the viewers' perception of their ...

In an alternate universe, Marisa Tomei won the role of Penny on The Big Bang Theory instead of Kaley Cuoco. An excerpt of Jessica Radloff's soon-to-be-released oral history of the CBS sitcom shared ...

The original Penny on The Big Bang Theory was a very different character, but never made it past the unaired pilot. Kaley Cuoco played the only main female character in the series in its first three ...

As Kaley Cuoco celebrates another year around the sun, there is no better excuse to revisit the moments that made her the beating heart of The Big Bang Theory.

Fans of The Big Bang Theory are still upset about one specific and contentious scene in Season 2 Episode 12 — The Killer Robot Instability — involving Penny and Howard. The episode aired back in 2009, ...

“The Big Bang Theory” co-creator Chuck Lorre says Kaley Cuoco‘s character Penny took a few seasons to fully understand. “It’s a cliched character: the dumb blonde, and we missed it,” Lorre said during ...