In April 1997 Entertainment Weekly declared Robin Williams the funniest person alive. Yet behind the facade of success lay years of drink abuse and womanizing. He was with John Belushi on the night he died of a drug overdose and it was this, alongside the birth of his son, that led him to clean up his act. Andy Dougan has conducted interviews with Williams over the last four years, and also spoken with colleagues, fellow students and fellow stars. Here he provides an in-depth biography to reveal the man behind the comic genius.