William Bishop

 was a rifleman (private) in the Green Jackets 5th Battalion stationed near Plymouth. He was called in to assist the pile up on the A38 Liskeard Bypass. He was assigned to Colonel Lethbridge-Stewart and helped in combating the Yeti in Bledoe. He took a shine to Anne Travers when he met her. He used to love reading science fiction novels when he was a kid. Lethbridge-Stewart considered Bishop to be good officer material, and decided Bishop would make a good addition to the special team he planned on building. (PROSE: The Forgotten Son)

In an alternative timeline, Bishop was one of the survivors in a Southern England mostly subsumed by the Great Intelligence. He rescued Owain Vine from the Yeti in Bledoe, but shortly after his mind also became subsumed by the Intelligence. (PROSE: Legacies)