Joseph David Keery, known professionally in music as Djo, is an American actor and musician. He became known for playing Steve Harrington in the science fiction series Stranger Things (2016–present), and has since starred in the comedy film Free Guy (2021) and in the fifth season of the crime drama series Fargo (2023–2024).

Steve Harrington is a character from the Netflix television show Stranger Things, portrayed by Joe Keery. Though initially characterized as a stereotypically unlikeable jock, Steve has progressed throughout the series into a more courageous, thoughtful, and caring character. His character development has been well received, with critics calling him the show's breakout character and its emotional anchor.