One of Lusamine's children and Lillie's brother, Gladion is, and I say this lovingly, somewhat edgy. He's mellowed out a little bit in recent years, but he still has a rough edge when talking and interacting with people. In Team Buddy Returns, Gladions anger is justified as Team Buddy has done something to his mother, and he goes on a quest to not only save Lusamine, but destroy Team Buddy in the process.

His voice should be very serious and even somewhat harsh at times. This is during a time where any kind of solace he had has been taken away from him, and he's on a mission to save his family and the region.