One of the world's most recognizable people, Daniel Radcliffe, admitted that while filming some scenes for the "Harry Potter" movies he was actually drunk. According to Radcliffe in an interview, this condition occurred during a period in his life where he was drinking "nightly.""I have a very addictive personality. It was a problem. People with problems like that are very adept at hiding it. It was bad. I don't want to go into details, but I drank a lot and it was daily -- I mean nightly," Radcliffe said to British celebrity news magazine Heat earlier this week. Radcliffe added, "I can honestly say I never drank at work on 'Harry Potter.' I went into work still drunk, but I never drank at work. I can point to many scenes where I'm just gone. Dead behind the eyes."Radcliffe, who was born on July 23rd, 1989, started playing the role of Harry Potter at 11 years old. He discussed his "very busy personality" and also talked about his production-assistant girlfriend, who he said was "a wonderful, wonderful girl, who's far too good for me." "I can also be quite insecure. A lot of actors have self-doubt. I live under that the whole time, and it's how I function best. I think she puts up with a lot; she says she doesn't," said Radcliffe.Daniel Radcliffe, actually started his acting career in a made-for-t.v. movie, "David Copperfield" in which he played young Copperfield. He later appeared in the movie "The Tailor of Panama" in which he joined stars such as Pierce Brosnan, Geoffrey Rush and Jamie Lee Curtis before moving onto playing Harry Potter. In 2010, he voiced the character "Edmund" in the Simpsons "Treehouse of Horror XXI". Radcliffe also has received critical praise for his theater work in the Broadway and West End productions "Equus" and "How to Succeed in Business Without Really Trying," and is currently on the promotional rounds for his film, " The Woman in Black ," out in U.S. theaters on Friday.