There are few actors who decide not to use doubles while filming a movie, but sometimes, even if they do not want to, the production forces them due to the difficulty of the scenes that are filmed. The high risk action scenes are performed by the actor’s double and we never realize it’s not our favorite character that is on the screen.
Anthony Knight is Rupert Grint’s stunt double. Here the two can be seen walking in the same outfit on set. The resemblance is apparent in their light complexion and bright red hair.