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18 Actors You Totally Forgot Were In 'Harry Potter' Movies

Updated January 14, 2021 4.3k votes 539 voters 85.2k views18 items

List RulesVote up your favorite actors that you sorta forgot were in the 'Harry Potter' franchise.

Chances are, you totally forgot about many of the famous actors in Harry Potter movies. Over the course of eight feature-length Harry Potter movies, it became practically a rite of passage for British thespians to grace at least one of those big-budget fantasy films, even if it was just to pop in for a quick cameo.

Some of the actors you forgot were in Harry Potter movies include stars like Robert Pattinson and Scarlett Byrne, who were just starting out in the industry at the time. On the other hand, some others, like John Cleese and Kenneth Branagh, were already veteran performers on the big screen.

Which famous extras in Harry Potter films did you totally forget about? Which popular actor played the best muggle or wizard? From Potter friends to foes, here are some famous actors who are forever a part of the Harry Potter universe.

  • Michelle Fairley
    Photo: Warner Bros. / HBO

    Michelle Fairley played Hermoine Granger's mother Mrs. Granger in Harry Potter and the Deathly Hallows - Part 1. The English Muggle works as a dentist.

    Fairley is most recognizable for her role as Catelyn Stark from the HBO series Game of Thrones. The Irish actress has also appeared in the television miniseries 24: Live Another Day and in the popular USA Network series Suits as Ava Hessington.

    Forgotten fave?
  • Verne Troyer played a goblin named Griphook in the first installment of the series, 2001's Harry Potter and the Sorcerer's Stone. The late actor was replaced by Warwick Davis for Harry Potter and the Deathly Hallows. Davis actually performed the voice work for Troyer in the first film. 

    Most people know the 2-foot-8-inch actor from his memorable role as Mini-Me in two Austin Power movies, Austin Powers: The Spy Who Shagged Me and Austin Powers in Goldmember. The actor also had minor roles in several other films including Mighty Joe Young and The Love Guru. Troyer became a reality television star with appearances as himself in Celebrity Big Brother and The Surreal Life.

    Forgotten fave?
  • Domhnall Gleeson played Ron's oldest brother Bill Weasley in Harry Potter and the Deathly Hallows. Bill is a pure-blood wizard and Hogwarts School alum. 

    Gleeson is best known for his starring movie roles in About Time, Ex Machina, and Brooklyn. The Irish actor also played the villainous General Hux in the Star Wars sequel trilogy.

    Forgotten fave?
  • Natalia Tena
    Photo: Warner Bros. / HBO

    Natalia Tena played Nymphadora Tonks in Harry Potter and the Order of the PhoenixHarry Potter and the Deathly Hallows, and Harry Potter and the Half-Blood Prince. Better known as Tonks or Dora, the half-blood witch is a student at Hogwarts. She later joins the Ministry of Magic and marries Remus Lupin.

    Tena is probably best known for her role as the wildling Osha in Game of Thrones. The English/Spanish actress also appeared in the Black Mirror episode "White Christmas." She was a recurring character on the sci-fi web series Origin and the CBS series Wisdom of the Crowd.

    Forgotten fave?