This article is written from a real world point of view.
Andrea Kay "Missi" Pyle(born November 16, 1972 in Houston, Texas) is an American actress and singer. She portrays one of the three Gray Sisters  in Percy Jackson: The Sea of Monsters. She is the other half of Smith & Pyle a desert country-rock band.
↑Rather than just determine the events of every mortal's life, they also are now "taxi-driving sisters who bicker over the single eye they share." from source