re: Actors that you know exactly what you are getting.

i agree with this but Craig has played other roles and done fairly well at them...Road to Perdition comes to mind

now in defense of deisel even though i agree with it...he has acting background and unfortunately his size and look puts him in one role. You see glimpses of actual acting talent in "a man apart"

but for the most part they're placed in one role because they lack substance to play another role.