Hyde as Kei, the boy with tragical destiny.  Vocalist of L'Arc~en~Ciel, the very famous J-rock band of Japan.  In 2002, his 1st solo album was released. It's called "Roentgen".  There're both Japanese & English version for this album.
	Gackt as Sho, an orphan from the city.  Ex-vocalist of Malice Mizer. In 1999, he's started his solo works as "Gackt JOB".  He's a very famous male singer of Japan now.  His personality is so interesting, gorgeous but also very funny!
	Zeny Kwok as Yi-Che, Sho's wife.  She is only 18 years old and a part time model in Hong Kong.  She appeared in movie "Glass tears"(gold fish in Chinese).  She also won some actress award.
	Wang Lee-Hom as Son.  26 year-old famous Taiwanese singer.  The most handsome Asian artist by the Japanese voted on-line.  11 albums since 1995, the latest "Evolution" is full of his all-time best songs  plus "W-H-Y", a new song that lyrics has a Japanese phrase...(^^;) taught by HYDE.
	Yamamoto Taro as Toshi, Sho's friend.  He appeared in "Battle Royale" movie. The winner from the last game.
	Terajima Susumu as Shinji, Sho's elder brother.  He was in quite a lot of movies by Kitano...like BROTHER.  He was also in Gohatto, and even in SMAP's PV "FLY".
	Suzuki Anne as Hana, Shou's daughter.  She had worked with "Kaneshiro Takeshi" before in "returner".  She also appeared in "Juvenile" movie. Very pretty girl~~
	Toyokawa Etsushi as Luka, Big brother.  He's a very famous actor in drama.  He's also in a horror film named "Angel Dust".  His last film was made with the director of MOON CHILD too, called DOG STAR.  [Jug: I used to see his dramas, his acting is very cool!(^o^)]
	Ishibashi Ryo as Laurier.  He was in DOG STAR too.