Guest Stars Debbie Allen as Dr. Catherine Avery Sophia Taylor Ali as Dr. Dahlia Qadri Jeanine Mason as Dr. Samantha "Sam" Bello Candis Cayne as Dr. Michelle Velez Caitlin McGee as Liz Brosniak Laura San Giacomo as Marjorie Kersey Co Starring Jake Borelli as Dr. Levi Schmitt Jaicy Elliot as Dr. Taryn Helm Alex Blue Davis as Dr. Casey Parker Rushi Kota as Dr. Vik Roy Eva Ariel Binder as Sofia Robbins-Sloan-Torres Steele Gagnon as Noah Brosniak