Isaac has a relatively calm demeanor from the start, which is consistent with other earth-elemental Adepts seen throughout the series. Like them, he is seen as bearing leadership qualities, which naturally incline others in the group of Adepts he assembles to defer to his judgment. He maintains trust in a childhood friend even after she apparently throws her lot in with an enemy of Isaac's who was complicit in letting her be taken hostage, but when that enemy later saves Isaac's life despite continuing the aims Isaac seeks to defeat, Isaac shows a willingness to trust his enemy's judgment and motivations. Isaac was raised in an environment that ascribes to faith in a perceived deity-like being (this religious overtone is more overt in the Japanese version of Golden Sun); when said entity reveals itself to Isaac and portrays the goal of a dangerous band of rogues as seeking to unleash a dangerously abusable power across the world, Isaac thus accepts the staggering responsibility of leaving his home village and worried mother behind to pursue his designated enemies abroad. At a much later point in what turns out to be a quest filled with troubling developments, however, he learns startling truths about the nature of the quest handed down to him and the goals of his opponents, which makes him ask a former enemy why they had not approached him before. However, he is humbled when it is suggested in hindsight that he would not have broken away from his perceived responsibilities at that earlier point in time because it would have meant violating his home's sacred teachings. Isaac eventually shows himself capable of defying the very entity his culture had deified to serve more immediately important needs for his world, and at unimaginable personal expense on top of that.

I'm looking a female voice actress who can do a spot impression / English translation to the Japanese voice actress in Super Smash Bros. Brawl and Super Smash Bros. Ultimate