"If anyone came up to him and asked him to be on 'Two and a Half Men,' he would not turn it down," Estevez's manager, Joseph Guinan, told ABCNews.com. "He's a performer. It's in his blood." (Estevez, pictured below, is also an actor and once joked that he'd be happy to fill Sheen's shoes on the show.)
It might be better for Sheen to return to work sooner rather than later. With family out of his reach -- his eldest daughter recently got married, his two young daughters are in the custody of his ex-wife, Denise Richards, and his twin baby boys are in the custody of his estranged wife, Brooke Mueller -- his job seems to be the only thing keeping him on track.
In October, while "Two and a Half Men" was on a scheduled hiatus, Sheen partied with an adult film star, went on a rampage through New York City's Plaza Hotel and landed in the hospital. Last week, while the show was also on a scheduled hiatus, he again partied with an adult film star and landed in the hospital before revisiting rehab.
"When he's working, he's good at keeping it all together," said People magazine senior writer Joey Bartolomeo. "When he's not working, that's when bad things happen."