User blog comment:Mich, Michele & Kuhla/Future Units Preview/@comment-26336535-20151025161014/@comment-26336535-20151027021857

I don't know the lore, so I'm not sure.

His name is Drevas though so I'm just going to assume he is until proven wrong. Also, Drevas is The Demon Pike (as far as I know, there isn't another sphere called that), which I'm assuming due to the GGC mission descriptions.