Aside from narrating various hero shows, he is the official Japanese voice actor of two fictional American icons, Darth Vader and Homer Simpson. He's also the voice of Disney's Pete, and for anime fans, he is best known as Gatchaman's Doctor Kozaburo Nambu and Osomatsu-kun's Dekaban.
From all of us here, thank you for the memories.
UPDATE (4/16/16): Special thanks to John Paul Cassidy for the corrections.
[Source: Anime News Network, Wikipedia (credits)]