The Joestar Family is the main family featured in the JoJo's Bizarre Adventure series, of which each of the protagonists of the series is a part of. It is a powerful family with English roots; most of its members attract particular trials and tribulations when confronting their enemies. Each member of the bloodline has a star-shaped birthmark above their left shoulder blade – Dio Brando and his descendants have this distinguishable mark as well due to DIO's 'theft' of Jonathan Joestar's body, and thus inheriting the Joestar genes.