Watch the official "Meredith’s Deluca Dream” clip from the ABC medical drama series Grey's Anatomy Season 15 Episode 1, created by Shonda Rhimes. It stars Ellen Pompeo, Chandra Wilson, James Pickens, Jr., Kevin McKidd, Caterina Scorsone, Camilla Luddington, Kelly McCreary, Kim Raver, Jake Borelli, Chris Carmack, Richard Flood, Anthony Hill, Scott Speedman and Giacomo Gianniotti.