Billy Black is the father of Rachel, Rebecca and Jacob Black. It is also possible that he is the father of Embry Call. He resides in La Push, Washington. His wife died in a car accident when Rachel, Rebecca, and Jacob were young, and he is confined to a wheelchair because of diabetes. He is Charlie Swan's best friend.
Billy's grandfather was Ephraim Black, a former elder of the Quileute tribe. He inherited Ephraim's place on the tribal council and knows the tales of the origins of the Quileutes. He never phased, probably because no vampires were around when he was young.