Ruby Hale is one of the secondary antagonists of the fifth season of Marvel's Agents of S.H.I.E.L.D..
She was the highly intelligent but deeply psychotic daughter of General Hale, who was genetically designed by Daniel Whitehall to become the perfect leader of HYDRA, who also develops an obsession with Daisy Johnson, including a desire to defeat her and absorb the Gravitonium and become the 'Destroyer of Worlds'.