Kaley Cuoco posts emotional farewell tribute to her 'Big Bang Theory' cast mates

Kaley Cuoco posts emotional farewell tribute to her 'Big Bang Theory' cast mates

Actress Kaley Cuoco, star of the hit sitcom The Big Bang Theory, has posted an emotional tribute to her co-stars on Instagram.

The Chuck Lorre comedy, which has aired on CBS for twelve seasons since starting in 2007, is about to air its big finale, and fans are keen to find out just exactly what happens to their favourite nerds.

Kaley, who plays the character of Penny, posted a picture on her Instagram account, which shows her surrounded by fellow cast members Johnny Galecki, Jim Parsons, Simon Helberg, Kunal Nayyar, Mayim Bialik and Melissa Rauch.

She captioned the Instagram post: "To a group of people who have been way more than a ‘second team’ to us for the last 12 years. They are family! 💔 thank you for being the cast behind the scenes..slowly saying our goodbyes over the next few weeks and it isn’t getting any easier!"

Kaley's followers were just as sad as her, soon taking to the comment section to air their grief. One person wrote: "Maybe there will be a Big Bang movie in the future. Great show. Thanks for the laughs."

Another person added: "The only show i watch and its coming to an end 😭But excited to see what the next chapter has in store for all of you 💕 Thanks for the years of laughs and entertainment 😘 [sic]. " A third person stated: "Oh babe. I’m bet it’s pretty emotional. What a ride. 😘"

In a recent interview with AOL, Kaley revealed how she's documented over 2,000 Polaroid pictures of the production of Big Bang Theory since season one was filmed back in 2006. She also added that she's planning on compiling these pictures to release them in a candid behind-the-scenes book.

Kaley stated: "You know what? That is what I'm going to do. I'll wait about another year or two, but that's the goal with the Polaroids. I think fans will love it. [Maybe] a cool coffee table book? I have pictures that are unbelievable, like behind-the-scenes from the pilot that are just incredible."

The Inspiration Deprivation, the Big Bang theory finale, will air on Thursday, April 18.