Tommen Baratheon is a major character in the fifth season. He initially appeared as a recurring character in the first, second and fourth seasons. He is portrayed by guest star Dean-Charles Chapman, taking over the role (starting in Season 4) from Callum Wharry, who played the character briefly in Seasons 1 and 2. Tommen is the younger brother of late King Joffrey and Princess Myrcella, and Joffrey's heir presumptive to the Iron Throne. Though legally the son of the late King Robert Baratheon and Queen Cersei Lannister, his true father is Ser Jaime Lannister, the Queen's twin brother. Following Joffrey's death at his wedding feast, Tommen is crowned King. His formal style is Tommen of the House Baratheon, First of His Name, King of the Andals and the First Men and Lord of the Seven Kingdoms. As he is not old enough to rule in his own right and command the military forces of the Seven Kingdoms, he does not yet bear the title of Protector of the Realm.