Viggo Mortensen plays the Spanish soldier-turned-mercenary Captain Alatriste, a heroic figure from the country's 17th century imperial wars.Viggo Mortensen plays the Spanish soldier-turned-mercenary Captain Alatriste, a heroic figure from the country's 17th century imperial wars.Viggo Mortensen plays the Spanish soldier-turned-mercenary Captain Alatriste, a heroic figure from the country's 17th century imperial wars.