Bill had brown eyes, light skin and short, white hair. He wears a blue button down shirt, a tan blazer and a U.S. Marshals badge.
Sam's was Bill's subordinate and mentee. While Bill knew her to be more than capable, he took her place in escorting John Tull to protect her from his perversions. This in addition to Sam perceiving him as her father figure, she was greatly affected by his death at the hands of Tull. She is willing to anything to catch Tull and bring him to justice.
Evan was one of Bill's subordinates.
Bill had a shotgun called Old Genevieve that was taken by John Tull after his death. You have the option to let Sam ask Bill about the origin of the name in a premium flashback scene of Chapter 7. He told her that his parents sent him off to a boarding school run by a woman called Genevieve. She taught him many things such as reading, tying a knot, starting and ending fights, and telling right from wrong. When he was 10 years old, a man broke into the school, took Bill hostage, held a knife to his neck and threatened to kill him. Genevieve then pointed her father's shotgun at the man and killed him when he didn't listen to her. Bill got away with a scar on his neck.
- His previous design strongly resembled actor Sam Elliott.
- His old face resembled that of Hector Nevrakis.
- On December 11, 2017, it was announced on Pixelberry's blog that Bill, along with other characters throughout several books will be getting a redesign in the next update for the app. As of December 12, 2017, Bill's updated look seems to have taken effect already.