The 31-year-old actress, along with her co-stars Johnny Galecki, Kunal Nayyarand Kevin Sussma, sat down for their panel on Friday afternoon (July 21) in San Diego, Calif.
During the chat, the cast opened up about the major cliffhanger at the end of last season.
“To see that be the pinnacle of this season was really cool. We’ve all come such a long way,” Kaley said.
Later in the panel, the cast joined the entire crowd to perform a hilarious rendition of the show’s signature lullaby “Soft Kitty.”