What actors and actresses appeared in Hiro - 2005?

You're likely thinking of the Japanese superhero film "Hero" (2007), not "Hiro" (2005).

The main cast of "Hero" (2007) includes:

* Takeshi Kaneshiro as Nameless

* Maggie Cheung as Moon

* Tony Leung Chiu-wai as Broken Sword

* Zhang Ziyi as Flying Snow

* Donnie Yen as Sky

* Jet Li as King

* Zhang Fengyi as the Emperor

If you're referring to a different film called "Hiro" from 2005, please provide more details so I can help you find the cast!