Guest Stars Debbie Allen as Dr. Catherine Avery Anthony Hill as Dr. Winston Ndugu Richard Flood as Dr. Cormac Hayes Sherri Saum as Allison Robin Brown Rya Kihlstedt as Claire Tyler Jacob Moore as Dane Pinetti Elizabeth Grullon as Abigail Hayes Page Leong as Dr. Cynthia Cu Co Starring Aniela Gumbs as Zola Grey Shepherd Jayden Haynes-Starr as Austin Hayes Nicolas Hedges as Liam Hayes Riley Looc as Young Liam Andriana Manfredi as Medical Product Rep Cairo Philip as Young Austin