Maureen Ryan of "The Watcher" for The Chicago Tribune reports that Battlestar Galactica's Mary McDonnell will be joining the cast of Grey's Anatomy. McDonnell currently portrays President Laura Roslin on BSG.
Get ready to go NUTS! After a long wait, we are about to start watching the best show on TV once again this week! Here’s a full minute promo featuring the premiere of the 5th season of Grey’s. Enjoy!