Anime voice actors.?

Question

Is there a law or custom which says nearly every male Japanese voice actor in the role of hero or villain has to yell with a much deeper and scratchier voice than he normally speaks with in the role? It often sounds very exaggerated.

Answer 1

I have notice that too..

Answer 2

No there isn't. And it's not only in anime by the way. I actually remember that happening in western cartoons but don't remember hearing that in anime. Strange.