Norio Wakamoto

Norio Wakamoto (若本 規夫) voiced Arc Kivat and Rey Kivat in Kamen Rider Kiva: King of the Castle in the Demon World.

Outside of the Kamen Rider Series, he is an incredible voice actor, having done many villainous roles for various anime due to his bombastic voice, not to mention tendency for him to roll his "R"'s. Some of his roles was Dragonball Z villain Cell, the voice for Megatron for the Transformers Animated dub, and M. Bison (known as Vega in Japan) in a couple of Street Fighter games.

Trivia

 * Hilariously enough, Wakamoto has his voice in a GPS system.