Special Guest Stars Steven Weber as Dr. Dean Archer Guest Stars Marc Grapey as Peter Kalmick Brennan Brown as Dr. Samuel Abrams Asjha Cooper as Vanessa Taylor Sarah Rafferty as Dr. Pamela Blake Michael Rady as Dr. Matt Cooper Johanna Braddy as Avery Quinn Angela Wong Carbone as Jessa Rinaldi Bonita Friedericy as Terri Hammer Torrey Hanson as Roger Flanagan Tim Kazurinsky as Sheldon West Maxwell Jenkins as EJ Daniels Katherine Keberlein as Becky Meadows Lily Harris as Astrid Meadows Co Starring Lorena Diaz as Nurse Doris Courtney Rioux as Paramedic Courtney Jeremy Shouldis as Dr. Marty Peterson Cesar Jaime as Paramedic Cesar Lynnette Li as Nurse Nancy Desmond Gray as Paramedic Desmond Michael Vaughn Shaw as X-Ray Tech Mike Carlos Rogelio Diaz as Nurse Hank Logan Amy J. Carle as Dr. Olga Patchefsky Renellè Nicole as Nurse Trisha Rachel Kang as Dr. Kathleen Jamison Peter Moore as Tom Meadows Jeff Shannon as Nathan Daniels