The character of Dumbledore in the Harry Potter movies that is butchered by Michael Gambon. Dumbledore is written to be the "epitome of goodness" who is brilliant, kind, and amusing. One of Harry's most essential mentors throughout the series, Dumbledore deserves to be well represented in the films. Michael Gambon portrays him as angry, menacing and distant.
Joan: Don't you ever wish you had a grandfather like Albus Dumbledore?
Dan: WHAT? NO? He'd by the worst grandpa ever!
Joan: Have you only seen the movies?
Joan: Agh! You've only seen GRUMBLEDORE