Frank Horrigan… the last marine. Cybernetically enhanced mutant lovingly home brewed to genocidal perfection by a bunch of folks who sat at the side of a fallen soldier and said “Hey, I know! Lets hack of the silly jocks legs and staple on a nice pair of robo legs!"

Brought to Equestria in the seconds of his self induced suicide, he is then found like half of the very cranky child of Jeffrey Dahmer and Jack the Ripper in they could have a little bit of heaven from their murder boners.”

 Lemon Frisk… a ghoul with a propensity for taking simple strolls after rather elongated bathroom breaks in blasted hellscapes One adventure through a decidedly emptier Equestria later, Lemon is now the proud papa of the foal of his lifes love and is now content….

So now, of course, Lemon is plugged into civic duty to wake up Horrison and once his sorted and armed, to go forth and slaughter in the coming misery.