LOKI
Obviously, Principal Loki was there. He very enthusiastically welcomed everyone into the bus. Does the bus look a little beat up around the back bumper? He might have accidentally put it in reverse trying to get it up to the main entrance. Look, it’s way too simplified for his super genius brain. This was why he “hired” Eddie to do the driving. Also because long distance drives bore Loki. And he likes looking out the side windows.
He also has magic pockets full of who-knows-what. So if anyone asks him for a weapon or something to defend themselves with (just in case of an attack) he’ll give them something. If you’re lucky, you’ll get a dagger. If you’re not lucky, maybe a gum wrapper.