Special Guest Stars Steven Weber as Dr. Dean Archer Guest Stars Marc Grapey as Peter Kalmick Sarah Rafferty as Dr. Pamela Blake Johnny Wu as Dr. Randall Shentu Marina Squerciati as Officer Kim Burgess Kellee Stewart as Carmen Walker Randy Flagler as Firefighter Harold Capp Julie Proudfoot as Dr. Amy Watkins Jerod Haynes as Terrell Walker Anna Zhang as In-Home Nurse Felicia François Chau as Patrick Choi Angela Sprinkle as Lisa Backman Chris Rickett as Jonah Backman Co Starring Courtney Rioux as Paramedic Courtney Jeremy Shouldis as Dr. Marty Peterson Marie Tredway as Nurse Trinidad "Trini" Campos Lynnette Li as Nurse Nancy Michael Vaughn Shaw as X-Ray Tech Mike Amanda Marcheschi as Nurse Dina Garston Elena Marisa Flores as Officer Rosado Amy J. Carle as Dr. Olga Patchefsky Matthew Isler as Paramedic Matt Rasika Ranganathan as Dr. Asha Mallick Anthony B. Jenkins as Darius Walker Kev Morris Sr. as Security Guard Kev Anthony Ferraris as Squad 3 Driver Tony Ferraris Timothy T. Harris as Officer Bedard Caprice Jones as Nurse Caprice Andrew Eakle as Chad McCoy Jane McCreedy as Dorothy McCoy Rom Barkhordar as Dr. Leo Jahan Mike Saad as Henry Abbott