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Stellan Skarsgard as Martin Vanger
Stellan Skarsgard plays Martin Vanger, Henrik's grandnephew, whose sister, Harriet, went missing all those years ago. He is now the chief executive of Vanger Industries.
(Pictured: Skarsgard in a promotional still for 'The Girl With The Dragon Tattoo.')
( Photo / Columbia Pictures / MGM)