Zihark

Zihark was a citizen of Daein during the Mad King's War. He first met the Greil Mercenaries while they were trying to board Nasir's ship. Daein troops had blocked the harbor, and Zihark joined the fight. Shortly before the battle, he had a conversation with another Daein swordsman to determine if any Laguz were fighting with the Greil Mercenaries. When he saw Lethe and Mordecai, he talked to them and joined their side. It was revealed in his support conversations with Muarim that the reason he fought with Laguz was that his former girlfriend had been one.

In Radiant Dawn, he helped Tauroneo and Jill protect the place where Prince Pelleas was hiding. He then joined the Daein Liberation Army along with them. After the last battle, he travels Tellius as a mercenary resolving Beorc-Laguz disputes. And its said that he settled in Gallia.

Also, if he talked with either Lethe or Mordecai in Radiant dawn in "A Reason To Fight", he would join the enemy team.

A New Beginning
Dis is ware things get steamy. ike is like i need a hot daddy with a fat red leaking cawk to rape my horny ass. den zihark comes along and makes hot sweet sweaty butt secks in pursuit of the lulz. then macaiah finds out && is like oh mi gawd oh mi gawd oh mi gawd oh mi gawd. den ike dies of aids and hepititus B and the game turns much better because ike is a pussy faggot n e waiz. de end