In 'The Adventures of Tintin: The Secret of the Unicorn', what is the name of the villain?

In The Adventures of Tintin: The Secret of the Unicorn, the villain is Ivan Ivanovitch Sakharine.

Sakharine is introduced as a collector of ship models who wants Tintin's model of the Unicorn. He is not merely a suspicious rival: he commands accomplices, takes control of the cargo ship Karaboudjan, and pursues the three parchment scrolls that reveal the location of a sunken treasure.

The film substantially expands Sakharine's role from the original Tintin books. In Steven Spielberg's adaptation, he is the descendant of the pirate Red Rackham and seeks revenge against Captain Haddock's ancestor, Sir Francis Haddock. Daniel Craig voices both Sakharine and Red Rackham, reinforcing the connection between the modern antagonist and the historical pirate.

Thomson and Thompson are detectives who assist Tintin, not villains, despite their comic incompetence. Captain Haddock is Tintin's ally and the heir to the Unicorn's history. Sakharine is ultimately defeated in a crane-top sword fight with Haddock and arrested after the scrolls are recovered.