Charlie Sheen makes nice at the Emmys

(CBS) Charlie Sheen, a surprise presenter at Sunday night's Emmy Awards in Los Angeles, couldn't have been more gracious about his old bosses and colleagues.

"My old category," an almost sheepish Sheen said as he presented the award for best actor in a comedy to Jim Parsons of CBS' "The Big Bang Theory," who also won last year.

Pictures: Charlie Sheen
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Special section: Emmy Awards 2011

Before he made the presentation, Sheen, who was fired from the CBS comedy "Two and a Half Men" during his spring meltdown, addressed a few comments to his former castmates.

"From the bottom of my heart," he said, "I wish you nothing but the best for this upcoming season. We spent eight wonderful years together and I know you will continue to make great television."

According to published reports, Fox and the Emmy producers were being pressured by Chuck Lorre and Warner Bros. to drop Sheen as a presenter.

Ashton Kutcher has been hired to replace Sheen as the show's star and will make his debut Monday in the show's season premiere. Also that night, a Comedy Central roast of Sheen, taped a week ago, will be aired.