Josh Herdman shot to fame as a fresh-faced 13 year old when he was cast in the first installment of the hugely popular Harry Potter series, Harry Potter and the Philosopher’s Stone, back in 2001.The star, who played Slytherin bad boy Gregory Goyle, then popped up in all of the sequels until the series came to an end in 2011. Josh was originally considered for the role of Dudley Dursley, Harry’s gormless muggle cousin, before being cast as villainous sidekick Goyle.