Now this really is magic! For this list, WatchMojo UK counts down Harry Potter actors who - to transform into the Wizarding World character - adopted a completely different voice to the one they naturally use. We're talking Toby Jones as Dobby, Julian Glover as Aragog, Richard Harris as Dumbledore and Ian Hart as Quirrell... During behind the scenes interviews, it's like they're a completely different person!

Check out these other brilliantly British videos from WMUK:
Top 10 Game of Thrones Actors You Forgot Were in Harry Potter -    • Top 10 Game of Thrones Actors You For...  
Top 10 Reasons Harry Should've Ended Up With Hermione -    • Top 10 Reasons Harry Should've Ended ...  

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