Ike is the legendary Radiant Hero and leader of the Greil Mercenaries, the son of Greil and Elena and elder brother of Mist. Shortly after joining the Greil Mercenaries, he became the leader after his father's passing and led the group in protecting Crimea's errant Princess Elincia and in combating the invasion force of Daein, winning the trust and respect of his allies in both laguz and Beorc nations. Three years later, after completing a job with Bastian to save Lucia from falling victim to Ludveck's civil war, Ike and the Mercenaries were hired by Gallia's army in their war with Begnion, where he came into conflict with Micaiah of Daein. Ike strives to live up to his father's reputation and become an expert swordsman so that he may one day avenge his father's death by defeating the Black Knight.
Ike serves as the lord character in both Path of Radiance and Radiant Dawn, though he is not of the "Lord" class by name in the latter. He is the first and only lord character of the Fire Emblem series not of royal blood. Ike is also a regular participant in the Super Smash Bros. series, making his debut appearance in Super Smash Bros. Brawl.
And he is reprised by Jason Adkins in the English dub and Michihiko Hagi in the Japanese dub.