Special Guest Stars Yaya DaCosta as Nurse April Sexton Steven Weber as Dr. Dean Archer Guest Stars Marc Grapey as Peter Kalmick Asjha Cooper as Vanessa Taylor Conor Perkins as Dr. Zach Hudgins Lilah Richcreek as Nellie Cuevas Sasha Roiz as Jack Dayton Nancy Linehan Charles as Elinor Whipple Ty Olwin as Harris Bevel CJ Forst as Brock Huntley Co Starring Lorena Diaz as Nurse Doris Courtney Rioux as Paramedic Courtney Marie Tredway as Nurse Trinidad "Trini" Campos Lynnette Li as Nurse Nancy Michael Vaughn Shaw as X-Ray Tech Mike Kroydell Galima as Radiology Tech Gene Pineda LaShawn Hazelwood as Nurse La'Shawn Jeffrey Todd Parrott as Nathaniel Perry Mariana Novak as Transport Tech Rick LeFevour Jr. as Devon Conroy Stephen Nakamura as Barry Johnson Jenna Coker-Jones as Robin Jones Jeffrey Kurysz as Maurice Jackson