Otto Hightower is a prominent character from the fantasy series A Song of Ice and Fire by George R.R. Martin, and he is also featured in the television adaptation House of the Dragon. He serves as the Hand of the King, a key political advisor, and is known for his ambition and strategic thinking. In the story, Otto is deeply involved in the power struggles of the Targaryen dynasty. His actions and decisions significantly influence the events surrounding the succession of the throne, showcasing his role in the complex dynamics of Westeros politics.