Greg Ayres is an American voice actor who works on a number of English versions of Japanese anime series. He voiced Hideki in Nerima Daikon Brothers, Koyuki Tanaka in Beck: Mongolian Chop Squad, Son Goku in Saiyuki, Clear in Dramatical Murder, Chrono in Chrono Crusade, Yuu Nishinoya in Haikyu!!, Kaoru Hitachin in Ouran High School Host Club, Negi Springfield in Negima, Heihachi Hayashida in Samurai 7, Frost in Dragon Ball Super and Tomoki Sakurai in Heaven's Lost Property.

Chrono Crusade, originally known in Japan as Chrno Crusade , is a Japanese manga series written and illustrated by Daisuke Moriyama. It was originally published by Kadokawa Shoten in Comic Dragon, then a special issue of the Dragon Magazine. A 24-episode anime television series by Gonzo based on the manga ran from 2003 to 2004 on Fuji TV. The series was released in North America by ADV Manga and ADV Films, titled Chrono Crusade.