Norio Wakamoto is a Japanese voice actor affiliated with the Sigma Seven talent agency. He was born in Shimonoseki, Yamaguchi Prefecture, and was raised in Sakai, Osaka Prefecture. He graduated from Waseda University.

Gunbuster, known in Japan as Top o Nerae! , is a Japanese OVA anime series produced by Bandai Visual, Victor, and Gainax and released from 1988 to 1989. It was the directorial debut of Hideaki Anno, best known as the creator and director of Neon Genesis Evangelion. The title is a combination of the titles of classic tennis manga and anime Aim for the Ace! and hit action drama film Top Gun, whose plot inspired Gunbuster's. To celebrate Gainax's 20th anniversary in 2004, a sequel to Gunbuster, Diebuster, was released as an OVA. The sequel features new characters and mecha, but retains the format and many of the concepts of the original series.