Guest Stars Patrick Dempsey as Dr. Derek Shepherd Debbie Allen as Dr. Catherine Avery Alex Landi as Dr. Nico Kim T.J. Thyne as Aaron Morris Linda Park as Deborah Lee Louis Ozawa Changchien as Steve Lee Justin Ellings as Frankie Morris Co Starring Aniela Gumbs as Zola Grey Shepherd Brody Goodstadt as Bailey Shepherd Ryder Goodstadt as Bailey Shepherd Zaiver Sinnett as Dr. Zander Perez Branden Silverman as Paramedic Paul Syre as Kayden Lee