Bard the Bowman

Bard is the Lake-man responsible for slaying Smaug after discovering his one weak spot. He is depicted as a champion of the people against the aristocratic and egoistical Master of Lake Town. He rallied the guards to defend the town when the Dragon came. Bard was able to slay the dragon Smaug with the Black Arrow after a tip from the old thrush (who had overheard Bilbo’s description of Smaug.

In Sir Peter Jackson's live-action films, he is played by Luke Evans.