Well he was never known as Mr Nice Guy.

Former star of Two and a Half Men, Charlie Sheen, has lashed out over a perceived lack of quality that remains on the show, including his replacement, Ashton Kutcher.

After he was fired, the 46 year-old Sheen had originally wished Kutcher well upon his appointment as successor, but it would now appear that his stance has changed.

"I'm tired of lying… I'm tired of pretending the show doesn't suck… I'm tired of pretending Ashton doesn't suck.

"It's nothing personal… I just feel bad for him. He's saddled with such bad writing", Sheen explained.