Charlie Sheen has apologised to Ashton Kutcher after slating his performance in Two And A Half Men.

The bad boy actor commented on Ashton - who replaced him after he was fired from the show last year - in an interview, saying he was "tired of pretending Ashton doesn't suck".

He also criticised the programme.

But he has now said sorry for his words, posting a message on his website admitting he had been "disrespectful."

"Dear Ashton, My bad. I was disrespectful to a man doing his best. I got excited and threw you into a crossfire.

"The rest of my statement I stand behind. You, however, deserve better. Safety in your travels good sir"

He signed the letter from 'The late Charlie Harper', his character on Two And A Half Men.

Photo: © CBS