Big Bad: After the deaths of the Homelander and Black Noir, he becomes the main villain of the series.By the end, he's got to the point where he's decided to commit superhero genocide and killed off Mother's Milk, Frenchie and the Female just in case they try to stop him.

To the point where Billy was ready to assault Superduper because one of their members, the Klanker, accidentally called him a 'fucking cunt' due to his Tourette's Syndrome. Though what happened to Becky was enough to drive him mad with rage against superheroes, he still displays a level of civility towards the rest of the Boys, especially Hughie, who he views as a little brother. Because You Were Nice to Me: He displays all the tendencies of a Sociopathic Hero, but Billy is very capable of empathy and kindness-he genuinely loved his mother and younger brother and, thanks to Becky, was willing to move past his violent tendencies and start life as a civil man.Badass Longcoat: Standard issue uniform for The Boys.And Then What?: Once the Homelander and Black Noir are dead, he gets back to work eliminating all supers, including his teammates.Billy loves nothing more than getting an opportunity to maim or murder a superhero. All a Part of the Job: Besides wanting to take out The Homelander, this is the reason he joined, remained with and reformed The Boys.Affably Evil: While he becomes batshit and determined to kill everyone with a trace of Compound V in their bodies near the end of the series, this doesn't stop him from being cordial towards Hughie.The leader of the titular 'Boys', an ex-CIA agent with an homicidal hatred for superheroes, especially Homelander, for raping his wife.

Superduper the boys