Kaley Cuoco played “Penny” throughout the 12 seasons of “The Big Bang Theory.”

She was important from the first episode as the events kicked off when she arrived in Pasadena.

Initially, her character wasn’t intended to be a main part of the show.

She became a cast member when CBS asked for a revamping of the plot.

According to fans and viewers, the “Penny” character had the most development on the show.

She revealed that an important BTS moment was that her father was available for every filming.

The crew members and the audience would give him a thumbs up at the end of every taping.

She broke her leg while horse-riding, so she was unavailable for a little while.

Upon her return, she was given a new role since she had to wear a cast and wait for her leg to heal.