The guy who voice Paarthurnax is also the voice of Mario.
(His name is Charles Martinet by the way)
Actually Charles Martinet voices the Spanish version of Paarthurnax AND Alduin, I believe.
I just imagined Alduin shouting but instead of shouting "YOL TOOR SHUL!' He shouted: "It's a-me, MARIO!"
GET THIS OUT OF MY HEAD!