Special Guest Stars Kate Walsh as Dr. Addison Forbes Montgomery Guest Stars Aniela Gumbs as Zola Grey Shepherd E.R. Fightmaster as Dr. Kai Bartley Marla Gibbs as Joyce Ward Ciara Wilson as Diamond Georgia T. Willow as Lucia Castelino Co Starring Frances Nichols as Nurse Karen Rhyan Hill as Aaron Wanru Tseng as Marion