What actors and actresses appeared in Half Term - 2005?

You are likely thinking of the film "Half Nelson" (2006), not "Half Term" (2005). There is no movie called "Half Term" from 2005.

Here are the main actors and actresses in "Half Nelson":

* Ryan Gosling as Dan Dunne

* Shareeka Epps as Drey

* Anthony Mackie as Frank

* Debbie Morgan as Mrs. Curren

* K. Todd Freeman as Mr. Curren

* Lou Taylor Pucci as Billy

* Melonie Diaz as Jen

* Ethan Suplee as Jason

Please note that this list is not exhaustive and there are many other actors and actresses who appeared in smaller roles in the film.