Great actors who are gifted in range:
Russell Crowe - he might be obnoxious but no one delves into a character like Russell.
Leonardo Dicaprio - from Titantic, Howard Hughs, to The Departed - he's got range and he's good.
Kevin Spacey - He has definite range but not quite as good as the others.
Famous actors who essentially play the same character in each movie:
Hugh Grant - I use the term actor loosely
Matt Damon - basically he's the same edgy character
Jack Nicholson - love his movies but its always Jack Nicholson in a different setting. This started way back from One Flew over the cuckoo's Nest to current movies.