5 Things We Know About Grey's Anatomy's Landmark 15th Season

After the bittersweet season 14 finale of Grey's Anatomy, we're doing everything in our power not to count the days until season 15. And yet, here we are, counting the days until season 15. As the long wait dwindles down, we've been fortunate enough to hone in on a few exciting details about the next chapter at Grey-Sloan Memorial Hospital. Let's review what we've uncovered about the cast, the theme, the new additions, and more! We can already hear those glorious sirens in the distance.