GREY'S ANATOMY - "Not Good at Saying Sorry (One More Chance)" - The Chief brings in Thatcher Grey to apologize to his two daughters, on "Grey's Anatomy," THURSDAY, APRIL 30 (9:00-10:02 p.m., ET) on the ABC Television Network. (ABC/SCOTT GARFIELD) JEFF PERRY, JAMES PICKENS JR., ELLEN POMPEO, CHYLER LEIGH