`fun' is not a word I would use to describe it. I was just bummed out all the time," he says. "This play is an hour-and-a-half and it's a thrill ride. So hopefully I won't be a wreck walking around when we're not doing the show."
Paul Rudd, looking for change, returns to Broadway →
He features heavy use of voiceover early on, as Charlie narrates the letters he writes to a mysterious, unseen recipient, but there's also great delicacy in the characters' intimate interactions.
Review: 'Wallflower' a thoughtful teen tale →