Kirsty Young's castaway is the entertainer Johnny Vegas.

As a stand-up comic he made his name as one of the most brilliant and unpredictable acts on the circuit. His stage persona was a belligerent drunk who would heckle his own audience. But the more successful he became, the more the similarities between his own life and his stage character seemed to blur. "I found popularity through self-destruction" he says, "and that can be quite addictive". In recent years, he has cut down on his drinking, lost weight and now got engaged - all part of a plan to ensure he reached his 40th birthday and could be a proper father to his young son. "Life's actually turned around and been very good to me," he says.

Producer: Leanne Buckle

Record: Hurt - Johnny Cash Book: The Ragged Trousered Philanthropists. Luxury: A Kiln.