Main Characters Dr. Grace Devlin 13 main appearances Constantine Alexander 13 main appearances Dr. Brett Robinson 13 main appearances Dr. Stafford White 13 main appearances Nurse Rosa "Ro" Quintero 11 main appearances Franco Leoni 10 main appearances Nate Devlin 10 main appearances Daniella Devlin 8 main appearances Dr. Olivia Wilcox 7 main appearances
Recurring Guest Characters Stavos Kazan 9 guest appearances Dr. Ian Flanigan 7 guest appearances Paramedic 5 guest appearances Paul Moretti 5 guest appearances Special Agent Owen York 4 guest appearances Al Trapani 4 guest appearances Gio 4 guest appearances Benny 4 guest appearances Young Daniella 4 guest appearances Gio Penna 3 guest appearances Titus Amato 3 guest appearances Luke Harris 3 guest appearances Paramedic 3 guest appearances Anesthesiologist 3 guest appearances Young Grace 3 guest appearances 6 Year Old Grace 3 guest appearances Nurse Katie 2 guest appearances Russell King 2 guest appearances Celeste Holmes 2 guest appearances Dante Amato 2 guest appearances ⇤ « 1 2 3 4 5 6 7 » ⇥