I truly think Jason Isaacs as Lucius is one of the only roles I don’t see ANY differently in my mind’s eye when I’m reading the books. That’s…who he is.
There’s a couple that are close…but that’s the only one I can think of right now where it’s just…that EXACT interpretation. Voice and look and everything.
I think him and McGonagall were the only 2 for me
Richard Harris’ Dumbledore was pretty spot on for me. Michael Gambon’s not so much. And while I think Snape and McGonagall were perfectly cast, they aren’t how I originally pictured the characters.
Lucius though. Lucius is dead on perfect.
I pictured Snape with a beard due to the artwork in the early books. His voice though was exactly like Rickman’s