Sung in the tune of: 
I am Rikiya Koyama, and I'm a seiyuu.
I am Rikiya Koyama, I'm also a stage actor.
I am Rikiya Koyama, I'm the official dub artist of George Clooney.
I am Rikiya Koyama, I also dubbed over Jack Bauer in 24'.
That's... a weird song. But anyway, here be his roles
- Abi in Ayakashi Ayashi
- Kogoro Mori [second] in Detective Conan
- Norb in Eureka Seven
- Musashi in Eyeshield21
- Mamoru Takamura in Hajime no Ippo
- Belfangan Grouseaux in Full Metal Panic
- Rudolf Hess in Fullmetal Alchemist: Conqueror of Shamballa
- Hideo Kuze in Ghost in the Shell: Stand Alone Complex
- Yamato in Naruto Shippuden
- Shinigami-sama in Soul Eater
- Mark in Spice and Wolf
- Gato in Saiyuki Gunlock
- Reiji Takayama in Witchblade
- Coyote Starrk in Bleach
- Kiritsugu Emiya in Fate/Zero (and Fate/stay night)
- Basch van Rosenberg in Final Fantasy XII
- Sun Wukong in Warriors Orochi
- Joe the Haze in Kamen Rider Black RX (Live action role, recurring character!)
- Kogarashi in Kamen no Maid Guy
- Rudolf Ushiromiya in Umineko no Naku Koro ni
- K in Blue Literature's adaptation of Kokoro
- Hakuoro in Utawarerumono
- Asras in Tales of Innocence
- Jack Rakan in the Mahou Sensei Negima CD dramas and the OAD.
- Kuroda Kanbe in Sengoku Basara
- Adam Malkovich in Metroid: Other M
- Wolverine in Wolverine and X-Men
- Gaioh, King of Destruction in Super Robot Wars Z2 Hakai-Hen
- Ricardo Silvera in Masou Kishin: Lord of Elementals (only in the PSP remake/bundle with Revelation of Evil God)
- Black Trader in Kaitou Tenshi Twin Angel
- Ibrahim Doğulu in Muv Luv Alternative: Total Eclipse
- Frank West in Ultimate Marvel Vs. Capcom 3
- Dawn & Uriel in Daemon Bride
- Craig Boone in the Japanese dub of Fallout: New Vegas
- The Japanese dub voice of Spartacus in Spartacus: Blood and Sand
- Buta (God of Lard form) in Tantei Opera Milky Holmes
- Taiga Saejima in Ryu ga Gotoku
- Jugai from the Fist of the North Star Legend of Kenshiro movie.
- Nar in Granado Espada