[1] Yamaguchi was born in 1971 and attended the Japan Academy of Moving Images (日本映画学校, Nihon Eiga Gakkō).
[7] In late 2004, Yamaguchi was one of the directors of Takashi Shimizu's comedy-horror TV series The Great Horror Family (怪奇大家族, Kaiki daikazoku).
[12][13] In August 2008, Yamaguchi released Tamami: The Baby's Curse,[14][15] a horror story about a monster-baby which is a more subdued work than his previous manic comedy efforts.
[16] In a change of pace, Yamaguchi left the horror aspects behind to direct a straight comedy in the February 2009 release Elite Yankee Saburo with special makeup effects by Yoshihiro Nishimura.
The movie retained the original cast from the TV series including lead actor Hideo Ishiguro.