Matthew Lewis played the role of Neville Longbottom in the Harry Potter films. He also appears in the June 2015 issue of British magazine Attitude. After seeing his racy spread, Harry Potter author J.K. Rowling tweeted him “Not as bad as watching Dan in Equus, but close” Upon seeing that tweet, Lewis fired back with his own, tweeting “Well, this is awkward, sorry Jo”. And the cringeworthiness is through the roof!