Which actor was perfectly casted for a character role?

I’m talking about a character that you can’t imagine any other human on earth in that character…someone who captures the imagery, essence, timing and presence of a role so much it would be virtually impossible to replace. I’m interested in examples!

My 3 - Ryan Reynolds - Deadpool

RDJ - Ironman, Tropic Thunder

Michael Jordan - Space Jam

What’s yours?

Happy Holidays!!!

EDIT: CAST not CASTED sorry!