"That Wave Was Atleast 7 Feet" - Billy Hargrove. William "Billy" Hargrove (portrayed by Dacre Montgomery) was careless, rash, and verbally abusive to his stepsister Max – a consequence of the physical abuse he himself suffers from his very abusive father. He is rather promiscuous, often sleeping with bored housewives. In season 3, he becomes the unwilling catalyst for the Mind Flayer. Flashbacks reveal that Billy had a close and loving relationship with his mother but she left when he was young due to his father's abuse, explaining his comfort around older women. Eleven later reminds Billy of his mother, allowing him to break free from the possession, and sacrifice himself to save Eleven from the Mind Flayer. As he died, he finally apologized to Max for all his wrongdoings. Show : Stranger Things Music : Post Malone - Rockstar (Stranger Things C418 Remix) Software : Adobe Premiere Pro Edit By : x_sourabh_x On Instagram Must Watch In 1080p with Earphones (For Best Experience).