Guest Stars Alejandro Hernandez as Casey Acosta Zabryna Guevara as Dora Nana Mensah as Dr. Candelario Sendhil Ramamurthy as Dr. Akash Panthaki Elijah Richardson as Avi Mantell Robert Sella as Hugh Denise Burse as Mrs. Gallagher Co Starring Megan Byrne as Gladys Miller Keren Lugo as Dr. Diana Flores Michael Basile as Paramedic Rob Moreland Christopher Cassarino as Dr. Ed Nottingham Marinda Anderson as Dr. Valerie Jessup Onika Day as Nurse Lipez Marcus Ho as Dr. James Choi Sheila Tapia as Leah Lindsay Northen as Nurse McCarthy Cara Ronzetti as Jaycee Williams Laura Sametz as Chrissy Calloway Tony Ward as Connor Calloway