It looks like Charlie Sheen will do just about anything for attention. After a seemingly short absence from the spotlight, the beyond-troubled actor has forced his way back into the headlines. Last week, Sheen called into TMZ to engage in a rant about his Two-and-a-Half-Men replacement, Ashton Kutcher. He stated:

I'm tired of pretending the show doesn't suck ... I'm tired of pretending Ashton doesn't suck. He went as far as attacking the show's writers: It's nothing personal ... I just feel bad for him ... He's saddled with such bad writing.

Now it seems he's regretting his attack on Kutcher and the sitcom. In an open letter, he apologizes to his replacement. The letter reads:

Dear Ashton, My bad. I was disrespectful to a man doing his best. I got excited and I threw you into the crossfire, but the rest of my statement I stand behind. You however, deserve better. Safety in your travels good sir.

When Kutcher was first announced as the sitcom's new star, Sheen was supportive and publicly gave the actor his blessing. His opinion has since flip-flopped.

In early 2011, Two and a Half Men shut down production so that Sheen could enter a substance abuse program for the third time in a year. After Sheen publicly bashed the show's creator, Chuck Lorre, the rest of the season was canceled. What followed was an out-lash on Sheen's part in which he demanded more money for working on the show. Sheen was the highest paid actor on television at the time so not only was his request denied, he was also fired and banned from entering the Warner Brothers lot in which the show is filmed.