No one, they don't have a Clarisse in the Lightning Thief movie. Hopefully they have cast someone just not told us.
Ares was not cast.
No, there will be a cast, but it hasn't been announced yet. There is some cast members on websites
I'm not sure they will have a Hermes portrayed in the movie
because he has been cast.
Logan Lerman plays Percy Jackson and Jake Abel plays Luke Castellan in the Lightning Thief .
The book the Lightning Thief has already been made into a movie , and now they're working on the sea of monsters with the same cast.
Who can? Anyone with good acting skills. They already cast Sean Bean to play Zeus, but he's definitely not 10 feet tall.
They have already chosen the cast members...sorry. i wanted to be in it too.
Gerard Butler is not in the Percy Jackson, and The Lightning Thief Movie. But if you go to, http://www.imdb.com/title/tt0814255/fullcredits you can see the full cast. Hope I have been a help.
The cast of Bike Thief - 2010 includes: Hugo Armstrong Mandy Freund Zek Lightning
Percy Jackson played by Logan Lerman Grover Underwood played by Brandon T. Jackson Annabeth Chase played by Alexandra Daddario Medusa played by Uma Thurman