Leonard Hofstadter, 'The Big Bang Theory'

Asked what it was about his character this season on “Big Bang Theory” that resonated enough to earn his first-ever Emmy nomination, Johnny Galecki points to how Leonard changed after his break-up with Penny.

“We’re always talking with [executive producers] Chuck Lorre and Bill Prady about how the maturity of the characters on the show is extremely slow,” he remarked. “But it would be urealistic for him to be the same guy after his heart gets shattered. I had a bit of creative license to mature him a little bit.”

Galecki also got to explore his immature side outside “Theory” with a cameo on the upcoming season premiere of “Entourage,” in which he appears as himself. No need to spoil his moment with details, but let’s just say it called on the actor to talk a little saltier than he’s accustomed to on broadcast TV, which was an adjustment when he did some ad-libbing. “['Entourage' creator] Doug Ellin had to tell me, ‘CBS standards and practices isn’t here. You can go all out.’”

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