agree 100%. no matter what roll he plays, he puts everything out there and makes his part great.
He really is. There was a blurb in some of the Lord of the Rings features about how Ian McKellan had no idea Dourif wasn't English, as he stayed in character while they were filming and kept his accent the entire time. He was Wormtongue. The creepy-creeper who somehow made me feel bad for him. Something about his eyes really got across his desperation and misery.
Brad Dourif is actually one of the best character actors around.