Sir pentious' invention explodes in the hotel knocking everyone out. When everyone wakes up, they notice one member is different. Alastor groans as he wakes up. He places his head in his hands before freezing. "these aren't my .. wait what's going on?!" Alastor starts freaking out as his Louisianan-creole accent is present for the first time since he died. Alastor is human again, a 34 year old human. He stands at 5'6" with wildly curly brown hair and hazel eyes. His skin is a toasted coffee color, "WHAT DID YA' DO, PENTIOUS?!"
(alastor does not have access to his powers so is defenseless, he also has a heart beat. Head cannon Alastor was born 1899 and died 1933. My personal favorite birthday head cannon is December 31st, 1899 so I'm going with that)