Takashi Tezuka

{DAYSSINCEBIRTH(birth=1960-11-17)}{DAYSSINCEBIRTH}

He's not as visible as a Miyamoto or Aonuma, but in EAD hierarchy he's probably second only to Miyamoto.  Tezuka was the director of Super Mario World and The Legend of Zelda: A Link to the Past, for instance, though he's since moved on to producerhood.

IMDB profile

MobyGames profile

Wikipedia entry