Actors/actresses who nailed their role?

[Timeforanamechangey]

In contrast to the unconvincing role thread, are there any actors/actresses who you think did a brilliant job as their characters?

My first thoughts are Harry Potter related :/

Michel Gambon as Dumbledore - I know he wasn't the original choice but I thought he was such a good Dumbledore, really captured the fire and humour of book Dumbledore, especially in the later books (no offence to the first Dumbledore)

Robbie Coltrane as Hagrid - maybe not quite big enough but short of using CGI (which would have been a terrible idea) I'm not quite sure they could have done better. He really played that well.

Anyone think of any others?

Oh and last but not least
Brad Pitt in the curious case of Benjamin Buttons I cried real tears at the end it was so endearing I couldn't help myself he was freaking believable 😢😢

Both Heath Ledger and Jake Gyllenhaal blew me away in Brokeback Mountain. Michelle Williams was also fab but then I think she's very underrated.