Yasuo Saitō (斎藤 恭央, Saitō Yasuo; September 24, 1976 – October 5, 2013), also known by the stage name Yakkun Sakurazuka (桜塚 やっくん, Sakurazuka Yakkun), was a Japanese comedian, singer, and voice actor.
Source: “Yakkun Sakurazuka”, English Wikipedia (CC BY-SA 4.0), excerpt