The ladies of The Big Bang Theory have some juicy secrets that their fans rarely know. Let's uncover five fascinating facts about these talented actresses. Firstly, Kaley Cuoco, who portrays the lovable Penny, has been a tennis enthusiast since she was just 3 years old. Not only is she a nationally-ranked amateur player, but her ex-husband was a professional tennis player as well. Intriguingly, Cuoco's role as Penny almost went to someone else. She replaced Amanda Walsh after the original pilot episode featuring Walsh was not selected. Thankfully, Cuoco's portrayal of Penny has become iconic in the show.

Another surprising fact lies with the brilliant Mayim Bialik, who plays the genius character Amy.

In real life, Bialik's intellect is just as impressive. She received acceptance from prestigious universities like Harvard and Yale but ultimately decided to attend UCLA. Beyond her intelligence, Bialik also has a unique haircare routine. She is very particular about her hair and even creates her own hair care products instead of using those available in the market. Talk about dedication! Lastly, Melissa Rauch, who portrays the sweet and squeaky-voiced Bernadette, was actually a fan of the show before joining the cast in Season 3.

This fan turned actress signed a groundbreaking deal worth a whopping $500,000 per episode for a total of 48 episodes. These juicy facts about the ladies of The Big Bang Theory reveal their hidden talents, surprising journeys, and personal quirks that make them even more fascinating to their adoring fans.