He resides in the town of Greendale, located on the opposite side of the Sweetwater River from Riverdale. He is a member of the local football team, the Baxter High Ravens.
Not much is known about Billy's early life, other than what is revealed by Hilda Spellman at Cerberus Books. It is revealed that Billy went through something traumatic by a group of boys at a summer camp when he was only eleven years old and none of the counselors would believe him. She also reveals that his father didn't believe him and his mother washed his mouth out with detergent until he just stopped talking.
Billy is a tall and handsome young man, with wavy blonde hair and a suitably athletic figure, given he is a regular football player. He is shown wearing the Greendale High football team jackets, along with his teammates.
Billy uses the fact that he is on the football team to bully people, his main victim being Susie Putnam. He is ruthless in his taunting, going as far as insulting Susie's gender identity. He tends to travel with a pack of his friends, who are carbon copies of himself. His friends often join in on the bullying as well. Billy is highly transphobic and homophobic, having no problem with throwing out hurtful slurs at people.
However, despite his seemingly tough and masculine persona he projects, he is in fact incredibly insecure and rather cowardly. As noted by Hilda Spellman using her divination, he harbors homophobic attitudes and bullies others, mainly due to a traumatic memory of being very likely sexually assaulted by other boys at summer camp when he was eleven, along with being ignored by the camp counselors and abused by his mother as a result of his accusations. This means that ultimately he is an emotionally damaged individual. He is also shown to be rather cowardly and easily frightened, given when he and his friends are terrified with the Weird Sisters illusory projection of having ghastly appearances in the Greendale MInes. This shows him to be nothing more than a cowardly and insecure bully who is incapable of finding correct solutions to his inner problems.
- The name Billy is an English baby name. In English, the meaning of the name Billy is Nickname for William 'resolute protector' often used as an independent name.