Alastor (Mad-Eye) Moody
Affiliation: Order of the Phoenix
Moody, one of the key members of the Order of the Phoenix, shows up early in Deathly Hallows to help transport Harry to the Burrow. He carries one of the decoy Harrys – Mundungus Fletcher disguised as Harry through Polyjuice potion. However, when confronted with Death Eaters chasing him and Mad-Eye, the cowardly Mundungus Disapparates, leaving Mad-Eye to get hit by a killing curse. He's one of the first casualties in Deathly Hallows.