Joshua Mintone Herdman is an English actor known for his roles in the Harry Potter films as Gregory Goyle. He has starred in all five existing movies released to date. He also appeared in one episode of The Crust and one episode of The Bill. He was also in the 2002 Film Thunderpants with fellow Harry Potter actor Rupert Grint, playing the role of the bully Damon, and he appeared in a supporting role in the BBC's interactive drama series UGetMe.
He was born on the 9 September 1987 in Hampton, Middlesex, England, UK.