It took me so long to find the right actor for this but I finally casted the villain of this story. Aka Atomic Unknown

Connor Jessup!!

You may know him as Tyler Locke from Locke and Key

We're going to see a lot of backstory from him during this book and the sequel (oh. Did I just accidentally spoil that there will be a sequel. Oops. Now you know)

He's a high school kid named Reilly Jacobs and I can't really Spoil much more than that.

You'll have to keep reading to see.