Guest Stars Marc Grapey as Peter Kalmick Brennan Brown as Dr. Samuel "Sam" Abrams Patti Murin as Dr. Nina Shore Jeff Hephner as Med Student Jeff Clarke Peter Mark Kendall as Joey Thomas Deron J. Powell as Tate Jenkins Gregg Henry as Dr. David Downey Co Starring Lorena Diaz as Nurse Doris Perez Cesar Jaime as Paramedic Cesar Amanda Marcheschi as Nurse Dina Garston Melissa Canciller as Nurse Melissa Tosin Morohunfola as Dr. Allan Vorspan Sarah Charipar as Dr. Deirdre Grant Mace Montgomery Miskel as Eric Jenkins Brookelyn Hebert as Shannon Thomas Brett Schneider as Nick Thomas Leena Kurishingal as Dr. Abby Patel Ryan Semmelmayer as Dan Finley Drew Schad as Ty
