Eric Dane has died at age 53. The actor, best known for playing Dr. Mark Sloan on ‘Grey’s Anatomy’, died on Thursday surrounded by by his loved ones, his family shared in a statement to ET. “With heavy hearts, we share that Eric Dane passed on Thursday afternoon following a courageous battle with ALS. He spent his final days surrounded by dear friends, his devoted wife, and his two beautiful daughters, Billie and Georgia, who were the center of his world.” the statement reads. “Throughout his jo