Kaley Cuoco

Check out "Extra's" outtakes with Mario Lopez on the set of "The Big Bang Theory," with cast members Kaley Cuoco, Johnny Galecki and Jim Parsons!

"Extra" host Mario Lopez visited Johnny Galecki, Jim Parsons and Kaley Cuoco on the set of their hit CBS series "The Big Bang Theory."

Watch the hilarity ensue!

The ladies of Hollywood dazzled on the red carpet at the 18th Annual Screen Actors Guild Awards with bold textures, sequins and pops of color.

Kaley Cuoco chose an incredible pastel green Romona Keveza gown, while Jayma Mays opted for a floor-length, black sequined number. "Glee" star Lea Michele wore a Versace platinum gown with a sexy, high-cut slit. As always, "Modern Family" actress Sofia Vergara looked classic, sporting a red Marchesa dress and Lorraine Schwartz jewels.

"Extra" was on the set of CBS show "The Big Bang Theory" with Kaley Cuoco and Emmy winning Jim Parsons -- who revealed which actor inspires him. "I've been enjoying James Franco lately. He does so many neat, interesting things."

Fellow actors Johnny Galecki and Simon Helberg opened up about the smartest cast member on the show and shared what fans might not know about their favorite geek squad. Watch and find out!

"The Big Bang Theory" star Kaley Cuoco happily lived out her fashion fantasy for a Vegas magazine cover shoot, showcasing the most amazing gowns. The actress spoke of one particular dress, declaring, "It's a Miu Miu dress sitting in there with my name on it... love it! I want to take it home, love it so much, I want to marry it!"

Cuoco owes her rise in Hollywood to "Big Bang," now in its fourth season and successfully in syndication. "This has been an unbelievable gift and it's changed my life... and we'll be in your TVs five days a week... sorry."