Mara went through a major makeover to play troubled computer hacker Salander: cutting and dyeing her hair, bleaching her eyebrows, getting multiple painful piercings, and learning how to skateboard, kickbox, and ride a motorcycle.
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Mikael Blomkvist (Daniel Craig)
In this week's issue of Entertainment Weekly, Craig — who plays journalist Blomkvist, the man who teams up with Salander to solve an old mystery — says Dragon Tattoo will be ''as intense as it's possible to be. You know, it's about abuse: emotional and physical abuse. That's in the book, and it's in the movie.''
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Erika Berger (Robin Wright)
The editor of the magazine Millennium, where Blomkvist works, and his closest confidant.
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Henrik Vanger (Christopher Plummer)
Plummer plays the Vanger family patriarch who taps Blomkvist to look into the decades-old disappearance of his niece, Harriet.
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Martin Vanger (Stellan Skarsgård)
Respected Swedish actor (and father of True Blood's Alexander) Skarsgård plays the current head of Vanger Industries.
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Nils Bjurman (Yorick Van Wageningen)
Lisbeth's troublemaking legal guardian.
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Anita Vanger (Joely Richardson)
Cecilia's younger sister was close to Harriet before she disappeared.
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Isabella Vanger (Inga Landgré)
Martin and Harriet's creepy mother.
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Cecilia Vanger (Geraldine James)
Harriet's cousin lives on the island with the rest of the Vanger clan.
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Annika Blomkvist (Embeth Davidtz)
Mikael's sister is a lawyer, which proves fortunate for him.
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Miriam Wu (Elodie Yung)
Wu has no idea what she's in for when she hooks up with Lisbeth.
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Dragan Armansky (Goran Visnjic)
The head of Milton Security, where Lisbeth shows off her investigative skills.