‘Grey’s Anatomy’ season 9 spoilers: ‘Hung’ star books multi-episode arc

“Grey’s Anatomy” is not done with booking guest stars with Constance Zimmer; as a matter of facts, they have just signed on an alum of another former HBO comedy in “Hung” to a multi-episode story that is still largely being kept under wraps. Here is what we can tell you about this story thus far. […]