In 2007, Radcliffe made his West End debut with Peter Shaffer's Equus. The play, which is a dark drama about a boy with a psychological fascination with equine things, came to Broadway in the following year.
However, the actor also admits he will never be able to compete with Harry Potter co-star Rupert Grint's muscular body.
"I'm not going to try to compete with Rupert on the arms front. His dad is a big guy, so if anyone was going to get the proper muscleman build, it was Rupert.
"You'd have to search pretty hard to find a more handsome ginger. He's also a dude. I wish I could be that calm. I'm lucky to have found an industry where this level of hyperactivity is encouraged. Otherwise I'd just be a f****** nuisance," he added.