Guest Stars Debbie Allen as Dr. Catherine Avery Kate Burton as Dr. Ellis Grey E.R. Fightmaster as Dr. Kai Bartley LaTanya Richardson as Diane Pierce Karen Obilom as Tobey Barrett Deanna Russo as Nola Marques Colin O'Brien as Grayson Friedman Daniella Garcia as Viv Jackie Tohn as Lindsay Allyn Michelle Bonilla as Dr. Elena Chavez Ryan Pinkston as Carlton Allyn Robert Towers as Zayde Co Starring Parker Ervolina as Luna Peyton Ervolina as Luna Janai Kaylani as Pru Miller Stacie Capone as Daisy Friedman Travis Goodman as David Friedman Scout Tayui-Lepore as Nurse Ashley Nakamoto Matthew Case as Paramedic