This report comes from the Official Star Wars Site!
Answered by: Rick McCallum

Who will be joining the cast for Episode III?

Look for most of the actors from Episode II to return with the story focusing on the characters played by Hayden Christensen (Anakin), Ewan McGregor (Obi-Wan), Natalie Portman (Padmé) and Ian McDiarmid (Palpatine).

Basically everything's been cast except for incidental characters. That obviously won't begin until we're further along on the script.

Posted: by