He is shown to be driven by the desire to prove himself, though he often falls short because of his recklessness and lack of intelligence. Bill was also considerably softer during his time with the gang; he empathized with low morale after the failure in Blackwater, voluntarily participated in the assault on Braithwaite Manor to rescue Jack Marston, allegedly had a strong attachment to his horse and disapproved of Micah taunting Arthur for his illness. Like his father, Bill is an alcoholic.