Star Wars: Episode III – Revenge of the Sith provides the uncredited voice of Darth Vader; when specifically asked if he had supplied the voice—either newly or from a previous recording—Jones answered, "You'd have to ask Lucas about that. I don't know". Director and "Star Wars" creator George Lucas has a cameo as Baron Papanoida, a blue-faced alien in attendance at the Coruscant Opera House. Lucas' son Jett portrays a young Jedi-in-training named Zett Jukassa. Lucas' daughter Amanda appears as a character called Terr Taneel, seen in the security hologram; while his other daughter Katie plays a blue-skinned Pantoran named Chi Eekway, visible when Palpatine arrives at the Senate
Star Wars: Episode III – Revenge of the Sith state to fight a Sith Lord. These are a few examples of many descriptions of characters' feelings and inner narrative. There are even some humorous lines added in, including extra dialogue in the battle between Grievous and Obi Wan - Grievous says, "I was trained by Count Dooku," and Obi-Wan replies, "What a coincidence; I trained the man who killed him." An official prequel novel, "Labyrinth of Evil" () by James Luceno, was published in 2005. It is set near the end of the Clone Wars and directly before the events of "Star Wars: Episode III Revenge of the Sith".