Thorin Oakenshield is a fictional character from J.R.R. Tolkien's works, primarily featured in "The Hobbit." He is the leader of the Dwarves on a quest to reclaim the Lonely Mountain and its treasure from the dragon Smaug. Thorin is known for his strong sense of duty, bravery, and royal lineage, being the heir to the throne of Durin's Folk. Thorin is characterized by his determination and pride, which sometimes leads to conflict with others, including his companions and allies. Throughout the story, he struggles with the burdens of leadership and the corrupting influence of wealth, ultimately seeking redemption and understanding.