The 30-year-old actress plays Penny in The Big Bang Theory, and her alter ego walked down the aisle with Johnny Galecki's character Leonard during the first episode of the ninth season of the show. While Penny is now a married woman, Kaley joked she's hoping she doesn't fall pregnant any time soon because she hates working with youngsters.

"I hope they don’t have a baby. I don’t like working with kids. I like kids but I just don’t want to work with them," Kaley laughed during an appearance on The Late Show with Stephen Colbert on Monday night (09May16).

"Babies are really tough to work with. People carry them in, they are the biggest divas you could possibly have around. They’re carried in, they only work like six minutes. Guess what, I’d only like to work for six minutes - I think that’s obnoxious!

"They make any sounds that they want - they talk, they cry. I would like to cry once in a while but as an adult we can’t do that. I just feel like babies can do whatever the hell they want and I don’t think that’s fair so I don’t want to work with them."

The Big Bang Theory is about to wrap its ninth season, and Kaley has become very close to the character of Penny since the show began in 2007.

In fact, their personalities are also similar, as Kaley explained to Stephen.

"I’ve definitely lived with her for five years," she said. "I love actually, for real, that they’ve given her such a voice, that she can be sarcastic with these guys. She’s very outspoken, I’m outspoken too - it’s gotten me in trouble before."

Kaley's appearance on the show came after she finalised her divorce from tennis player Ryan Sweeting on Friday (06May16). According to, Kaley protected her fortune thanks to a pre-nuptial agreement, with Ryan, 28, reportedly walking away with just $165,000 (£114,000).