A work will only have deep resonance if the kind of darkness I can generate is something that is resident in me already.
As they say in Italy, Italians were eating with a knife and fork when the French were still eating each other. The Medici family had to bring their Tuscan cooks up there so they could make something edible.
I guess you can say that every actor is a 'character actor' on some level. But I think some actors have a wider range. I think that's how you get that mantle.