Christopher Walken. It would require some tweaking at the start of the game to make sense: "This Ghost was your daddy’s Ghost when he was shot down over the Hellmouth. He was captured, put in a Hive prison camp. He knew that if the HIV's ever saw the Ghost, they’d confiscate it, take it away. The way your dad looked at it, this Ghost was your birthright. He’d be damned if any Thrall’s gonna’ put his greasy arc hands on his boy’s birthright. So he hid it, in one place he knew he could hide something: his ass. Five long years he wore this Ghost, up his ass.”