Hargreeves
I don't think this is Dad. It seems like it could be, but I don't think it's him. People keep talking about a Jubilant Entity and Goodland and the multiverse. Dad doesn't even have powers. And no one's describing him as Jubilant unless they're being sarcastic or kissing his ass over some achievement or other.
Looking over the information this network has (which is sorely lacking, by the way), no one actually knows anything, and this Entity seems to be an incredibly powerful imbecile. I figure we have two options; A, we try to hunt it down when others haven't, or, B, we take advantage of Dad and Pogo and Mom not being here and go have some fun. We don't have classes. We don't have training. We don't have anyone telling us we can't do what we want. So let's go. We can get the lay of the land and collect intel and all that other shit, but we can also go have some fun.