More characters have been revealed to be in Tales of Vesperia ~The First Strike~, thanks to an update on the official website. The movie will be a prequel to the game, focusing on Yuri Lowell and Flynn Scifo's past when they were in the Imperial Knights. Estelle, Raven, and Rita Mordio have been confirmed to have roles in the movie.

The actual page on the official websites lists them in a relationship chart, which is a nice touch. ;)