Takehito Koyasu

Takehito Koyasu (子安 武人 Koyasu Takehito, ) is a prolific Japanese voice actor from, Japan. Probably his most famous role would be DIO from Jojo's Bizarre Adventure or if you're cool, Rezo the Red from The Slayers. Some of his other noteworthy roles include Kululu from Keroro Gunso, Tatsuya Suou from Persona, Excalibur from Soul Eater, Optimus Primal from Transformers, Oliver in Trails and much, much more.

He portrayed in the Japanese dub of My Little Pony: Friendship is Magic, My Little Pony: Tomodachi Wa Mahou.

Trivia

 * Yōji Ueda also portrayed a character in Jojo's Bizarre Adventure, that of Robert E.O. Speedwagon.