Emmy nominated actor Charlie Sheen and his girlfriend Brooke Mueller walk the red carpet at the 59th Primetime Emmy Awards in Los Angeles, California September 16, 2007.[Agencies]

Charlie Sheen, star of hit U.S. television sitcom "Two and a Half Men," revealed on Monday that he and his wife Brooke Mueller are expecting their first child together.

Sheen, 42, married real estate agent and former actress Mueller, 31, this past May after a bitter divorce with actress Denise Richards in 2006. Sheen and Richards had two daughters from their previous marriage, and Sheen also fathered a girl with former girlfriend Paula Profit.

"Brooke and I are thrilled! She's the best stepmom Sam, Lola and Cassandra could ever hope for," Sheen said in a statement. "Seeing her love and affection with those three, I know she'll be an amazing mom. Unless I bat 100 percent, perhaps a boy awaits us."

Son of former "West Wing" actor Martin Sheen, Charlie Sheen currently portrays a wealthy, womanizing bachelor on the top-rated CBS sitcom "Two and a Half Men." He's garnered three Emmy nominations for his role as Charlie Harper on the show.

TV Guide named Sheen as the top paid actor on television earlier this month. Pocketing $825,000 per episode, including money from his ownership rights in the show, Sheen averages an annual salary of just under $20 million.

A longtime Hollywood veteran, Sheen also appeared in 1986 Vietnam War film "Platoon" and baseball comedy "Major League."