| Christopher Lee as Saruman Notes: Famous for his performance as Dracula in dozens of '50s and '60s horror films, Lee is a devoted Tolkien fan and has called Lord of the Rings "the greatest literary achievement of my time." |
 
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| Andy Serkis as Gollum (Voice) Notes: Though actor Andy Serkis will be providing the voice, the team at WETA Digital will be creating Gollum as a CGI creature. Though many express skepticism that this complex character can be created in the computer, Jackson promises that new techniques of motion capture, muscle/skin rendering, and realistic animation will succeed at bringing Gollum to life. It is possible that Serkis may also play Smeagol in a flashback. | 
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| Brad Dourif as Grima Wormtongue Notes: Dourif has played a number of intriguing characters over the years on film and on television, such as his recent turn as a villain on The X-Files. He even does the voice of the killer doll Chucky! |   |
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Nathaniel Lees as Ugluk
Notes: Though much of Lees' face will likely be hidden under the extensive orcish makeup, his stark features will doubtless help to create the character. |  |
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Bruce Spence as The Black Lieutenant
Notes: Also known as the Mouth of Sauron, this character is the closest we get to seeing Sauron in the books. While this might have changed for the film version, Spence will still have quite a role to play as one of the film's most frightening villains. |
 
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