Bilbo Baggins is the unlikely hero of J.R.R. Tolkien's fantasy novel 'The Hobbit.' Bilbo, a hobbit living a quiet life in the Shire, is swept into an adventure when he is recruited by the wizard Gandalf to join a group of dwarves on a quest to reclaim their homeland. Throughout the story, Bilbo discovers courage, resourcefulness, and a taste for adventure he never knew he had. Bilbo's character embodies the theme of personal growth and the power of ordinary individuals to accomplish extraordinary feats.