What actors and actresses appeared in Ganryujima - 2003?

You're likely thinking of "Gonin-sama" (2003), also known as "The Boss", not "Ganryujima".

The main cast for "Gonin-sama" (2003) includes:

* Takeshi Kitano as "Boss"

* Masatoshi Nagase as "Kiyoshi"

* Koyuki as "Miyoko"

* Yutaka Takenouchi as "Toshihiro"

* Susumu Terajima as "Ryuzo"

This was Takeshi Kitano's directorial follow-up to the 1995 classic "Gonin", and it features a similar gang-focused story with a lot of action and emotional drama.