Ken'ichi Matsuyama ( 松山 研一/松山 ケンイチ )

Matsuyama 1985. március 5-én született Aomoriban.
Első filmje 2003-ban volt.(Winning Pass). Több sikeres filmje volt, de a legnagyobb sikere a Death note-ban volt, ahol L-t alakíotta.
Adatai:
Vércsoport: B
Magasság/Súly: 185 / 60
Filmjei:

• Winning Pass (2003)
  Bright Future (2003)
  Guuzen nimo saiaku na shounen (2003)
  The Locker 2 (2004)
  Kamachi (2004)
  The Taste of Tea (2004)
  Linda Linda Linda (2005) as Makihara
  Nana (2005) as Shin (Shinichi Okazaki)
  Furyo shonen no yume (2005)
  Kasutamu-meido 10.30 (2005)
  Otoko-tachi no Yamato (2005) as Katsumi Kamio (15 years old)
  Oyayubi sagashi (2006)
  Death Note (2006) as L
  Death Note: The Last Name (2006) as L
  The Blue Wolf: To the Ends of the Earth and Sea (2007) as Juchi
  Ten Nights of Dream (2007)
  Shindo (2007)
  Dolphin Blue: Fuji, mou ichido sora e (2007)
  L: Change the World (2008) as L
  Don't laugh at my romance (2007-2008) as 19 year old boy
  Detroit Metal City

Sorozatai:

• Gokusen (2002)
• Kids War 5 (2003)
• 1 Litre of Tears (2005) as Yuji Kawamoto
• Tsubasa No Oreta Tenshitachi (2006)
• Sexy Voice and Robo (2007) as Robo