Captain William Blackmore was a high-ranking officer in SAVAGE-ED who investigated the murder of Belial de Ardyn in Maar Sul City in 1017 AE. He was responsible for hiring Fel Ridoon to keep an eye on potential killer suspects with a connection to the Belial case among the Grand Alliance. He was the son of Colonel Stephen Blackmore. William sacrificed himself to save Elena Jeremy from the Shadow's attack and was succeeded by George Bush.