‘The Big Bang Theory’ Season 10 Cast, Updates: Kaley Cuoco Ready To Exit ‘TTBT?’

"The Big Bang Theory" Season 10 star Kaley Cuoco (Penny) is ready to exit after 10 years of "TBBT" on CBS. While new contract deals for "The Big Bang Theory" cast are yet to be negotiated, Kaley Cuoco has a few things to say.

Radio Times cites an interview with Kaley Cuoco by Jimmy Kimmel on "The Big Bang Theory." Kaley Cuoco pointed out that "The Big Bang Theory" actress joined as Penny on "TBBT" when she was only 21.

Wolowitz: You're a physicist?
Col. Williams: Better. I'm an engineer.
Sheldon: *dies*
Stream the latest full episode https://t.co/Rfz48OoHub pic.twitter.com/9vJRTU1gFy

— The Big Bang Theory (@bigbangtheory) 27 September 2016

  Now in her 30s, Kaley Cuoco expressed that 10 years on "The Big Bang Theory" is a long time. Kaley Cuoco jokingly told Jimmy Kimmel that the "TBBT" actress was still hot when she joined "The Big Bang Theory" in Season 1.

Dudes! There's an awesome new @bigbangtheory tonight! Don't miss it! pic.twitter.com/5wTLk03BHw — Melissa Rauch (@MelissaRauch) 3 October 2016

Kaley Cuoco further expressed that the "TBBT" star felt she has changed a lot since joining "The Big Bang Theory" in that first year. Interestingly, Kaley Cuoco warned that the question of continuing "The Big Bang Theory" beyond Season 10 is a pricey question.

Just how expensive is about to be answered as "The Big Bang Theory" contracts will soon be discussed. Despite phenomenal viewership per episode of "The Big Bang Theory," Variety reports that production costs for "TBBT" are also high.

According to the media outlet, half of these costs goes to the paycheck of "The Big Bang Theory" stars. Mirror cites a salary survey by Variety, which indicates that Kaley Cuoco, Jim Parsons (Sheldon Cooper) and Johnny Galecki (Leonard Hofstadter) leave their contemporary TV actors far behind with their "The Big Bang Theory" salaries.

Kaley Cuoco, Jim Parsons and Johnny Galecki each earn a cool $1M, or thereabouts, per episode of "The Big Bang Theory." With the numbers of "The Big Bang Theory" Season 9, pay rise for Kaley Cuoco, Jim Parson and Johnny Galecki are still in the offing.

That is, unless CBS makes major changes to "The Big Bang Theory" casting. TVLine reports that rating for "The Big Bang Theory" Season 10 is somewhat lower than the opening episode of "TBBT" S9.

Is "The Big Bang Theory" Season 10 the end? Nothing is set in stone, but if ratings and sentiments by Kaley Cuoco are bases, then Is "The Big Bang Theory" fans may be in for a surprise.