Rikiya Koyama (小山 力也 Koyama Rikiya?, born December 18, 1963 in Kyoto) is a Japanese actor and seiyū who is a member of Haiyuza Theatre Company.

He has done popular voicing roles in Hajime no Ippo, Utawarerumono and Kamen no Maid Guy.

He is also known by the nicknames "Rikki" and "Riki-chan".


He graduated from Ritsumeikan University, where he read law, in 1986, and entered Toho Gakuen College and majored in drama. After graduation, he joined the Haiyuza Theatre Company in 1988. His first production with the company was "The Idiot", in which he played the role of a servant. He came to the attention of the public when he was selected at an audition to play the role of Sebastian in "Twelfth Night" directed by Michael Pennington.

Since then, he has appeared in many plays, including "The Merchant of Venice" staged October and November 2005. He played the role of Antonio. The play was performed in the UK, the Netherlands, Romania, and Japan and received a favorable reception.

He played in Japanese TV dramas which dealt with social problems, such as "The School Will Change When the Headmaster Changes" and "Unjust Accusation".

He also does an attractive dubbing for the voice of the pediatrician, Dr. Doug Ross (George Clooney) in the American TV drama "ER", which has been broadcast in Japan since 1996 by NHK (Japan Broadcasting Corporation). This dubbing made him leap to fame in Japan. Since then, he has dubbed all the roles played by George Clooney in films after "Peacemaker" and has also played leading characters in many major plays.

He will also starred in 2010 live-action film, Wonderful World, with fellow voice actors, Mamoru Miyano.[1]

Voice roles

Major roles in bold

Television animation


Theater animation

Video games

Dubbing roles

Live-action roles


  1. "Namikawa Directs 1st Film: Live-Action Wonderful World". December 8, 2009. Anime News Network. http://www.animenewsnetwork.com/news/2009-12-08/namikawa-directs-1st-film/live-action-wonderful-world (Accessed January 30, 2010).
  2. Oochi, Yoko. "The Official Art of Fate/stay night". (January 2007) Newtype USA. pp. 101-107.

External links

ar:ريكيا كوياما ko:고야마 리키야 it:Rikiya Koyama ms:Rikiya Koyama tl:Rikiya Koyama th:ริกิยะ โคยามะ zh:小山力也

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