Joseph McPherson will someday become the Lumen hero who does battle against the Tenebrae, but for now, he's just a spoiled child.

I am looking for someone who can convincingly portray an early teenager (around 10-13 years of age) for this role. If you are cast as his child self, there's a chance I may ask you to also voice his teen self, if it's within your range. It won't be much different, just enough to establish he's older than he was before the time skip.