A local criminal and sectarian agitator who pressures Pa to join the loyalist cause. When refused, he becomes a direct threat, taking Ma and Buddy hostage to facilitate his escape, serving as the primary human antagonist.
Billy becomes a direct physical and psychological threat to Buddy.
Billy takes Buddy and his mother hostage as leverage during his attempted escape and threatens retribution after being arrested.
They embody opposing forces in the film's moral and communal conflict.
The Minister's church speech frames a moral choice, while Billy pressures others to join the loyalist cause and escalates sectarian violence.
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