<Li> Kenny Baker as R2 - D2: An astromech droid often seen on missions with Anakin and Obi - Wan . </Li> <Li> Frank Oz voices Yoda: The centuries - old Jedi Grand Master of an unknown species who, in addition to sitting on the Jedi Council, is the instructor for young Jedi . </Li> <P> Ahmed Best, Pernilla August, Oliver Ford Davies, Andy Secombe, Silas Carson and Liam Neeson reprise their roles as Jar Jar Binks, Shmi Skywalker, Sio Bibble, Watto, Nute Gunray and Qui - Gon Jinn, respectively from The Phantom Menace, with the latter returning in an uncredited voice role cameo while Silas Carson also portrayed Ki - Adi - Mundi, a member of the Jedi Council . Alethea McGrath portrays Jocasta Nu, the chief librarian of the Jedi Archives . Temuera Morrison portrays Jango Fett, a Mandalorian bounty hunter who provides his DNA to use for cloning purposes in the creation of the clone army . Jimmy Smits portrays Bail Organa, a senator of the Republic, and Jay Laga'aia portrays Captain Typho, the head of security for Padmé Amidala . Daniel Logan portrays a young Boba Fett, Jango's son, who is created from his "father" 's DNA . Leeanna Walsman portrays Zam Wesell, a shape - shifting Clawdite bounty hunter and partner of Jango's, who is given the task of assassinating Padmé . Jack Thompson portrays Cliegg Lars, a moisture farmer who freed and married Shmi, thus becoming the stepfather of Anakin Skywalker . Joel Edgerton and Bonnie Piesse appear as Owen Lars, the son of Cliegg Lars and stepbrother of Anakin Skywalker, and Beru Whitesun, Owen's girlfriend . Ayesha Dharker appears as Jamillia, the Queen of Naboo, and Rose Byrne and Verónica Segura appear as Dormé and Cordé, Padmé's handmaidens and the latter who serves as a decoy to the senator and is killed during an assassination attempt . </P> <P> A large search for the new Anakin Skywalker was performed across the United States . Lucas auditioned various actors, mostly unknown, before casting Christensen . Among the many established actors who auditioned were Jonathan Brandis, Ryan Phillippe, Colin Hanks, and Paul Walker . Leonardo DiCaprio also met with Lucas for the role, but was "definitely unavailable" according to DiCaprio publicist Ken Sunshine . Co-star Natalie Portman later told Time magazine that Christensen "gave a great reading . He could simultaneously be scary and really young ." </P>

Who played the assassin in attack of the clones