He is the prince of Eblan and a skilled Ninja. He is brash and has an inflated ego, and frequently flirts with women. He is kind and has a strong sense of right and wrong, and defends his kingdom no matter the price.
Edge is a young, lean man, with short, slightly spiked silver hair and has light-blue eyes in-game. In Final Fantasy IV, Edge wears grey-blue and black armor with a grey cowl covering his mouth and a large gray cape. In Final Fantasy IV: The After Years Edge retains the cowl but has darker blue clothing on his torso with golden armor on the shoulders and waist, and has a wavier hairstyle. His cape is exchanged for what appears to be Rubicante's Cloak of Flame, which is depicted in Edge's artwork, and can be obtained for him to wear as equipment in the game.
Edge is rude, hotheaded and stubborn, refusing to give up his pursuit of Rubicante and not backing down from the fight despite being outmatched. He is mean and obnoxious to the party at first, but comes to appreciate their help over time. He has an unrequited crush on Rydia and flirts with other females occasionally, remarking that Rydia and Rosa make "two babes in the party". He has a short temper and uses his rage as a source of power in his rematch with Rubicante, unlocking new Ninjutsu skills.