The character model for the Witch-king of Angmar sports a different helmet from that featured in the movie, as it was based on earlier design that was later revised to prevent him from being confused with Sauron.
Most of the main voice actors from the film are featured in this game. Although neither Orlando Bloom nor Viggo Mortenson gave their voice for Legolas and Aragorn respectively.
Andy Serkis voiced all his lines before he recorded ADR for the third film.