Theoden is a fictional character from J.R.R. Tolkien's epic fantasy novel, The Lord of the Rings. He is the King of Rohan, a kingdom known for its horsemen and warriors. Initially, Theoden is portrayed as a weakened ruler, influenced by the treacherous Grima Wormtongue, but he eventually regains his strength and courage to lead his people against the forces of Sauron. As a character, Theoden embodies themes of leadership and redemption. His transformation from a passive king to a brave leader is pivotal in the story, especially during the Battle of Helm's Deep. Theoden's rallying speeches inspire his men, showcasing his commitment to protect Rohan and its people.