Tyrion Lannister was a fictional character in the "A Song of Ice and Fire" series of fantasy novels by George R.R. Martin, as well as the television adaptation "Game of Thrones." He was known for his sharp wit, intelligence, and strategic prowess, despite facing prejudice and discrimination due to his dwarfism. Tyrion served as the Hand of the King and played a crucial role in the political intrigues of the Seven Kingdoms.