What actors and actresses appeared in Nightwatcher - 2007?

It seems you're asking about the film "Night Watch" (2004), not "Nightwatcher". There is no movie titled "Nightwatcher" released in 2007.

If you are indeed asking about the Russian fantasy film "Night Watch", here are the main actors and actresses:

* Konstantin Khabensky as Anton Gorodetsky (the Night Watch)

* Vladimir Menshov as "The Other" (the Day Watch)

* Maria Poroshina as Svetlana

* Timur Eremeev as Egor

* Galina Tyunina as Olga

* Chulpan Khamatova as Susanna

* Dmitriy Martın as "The Other" (the Day Watch)

Let me know if you have any other questions about the film.