He's pretty much my favorite actor (I also like Robert Duvall). Both of them make acting seem like NOT acting, which is the highest compliment IMO.
Hopkins has a superb gift for underplaying a character as well.
Check out a little known gem titled "Juggernaut" form the 1970s.
Loaded with high end English talent focusing on an oceanliner that has several large bombs planted aboard.
Richard Harris is over the top as the Corps of Engineers Bomb De-fuser. While Hopkins and everyone else tries to under play their Scotland Yard and Downing Street colleagues.
A fun little flick!
Jack.