Ian McKellen also known as “the dude who plays Gandalf in Lord of the Rings” is a pretty boss dude. So when the original Dumdledore who was played by Richard Harris passed away, there were wizard’s shoes that had to be filled.

The film’s producers called up Ian McKellen, but in a candid interview with BBC’s Hardline, he’s recently revealed why he didn’t take the role:
“When he died – he played Dumbledore, the wizard – I played the real wizard [Gandalf] of course – but when they called me up and said would I be interested in being in the Harry Potter films, they didn’t say what part.
I wonder who Ian McKellen would’ve agreed to playing if they didn’t offer him the role of Dumbledore. Anyway, he continues:
“I worked out what they were thinking and I couldn’t. I couldn’t take over the part from an actor who I’d known hadn’t approved of me.”