Main Characters Dr. Luisa 'Lu' Delgado 2 main appearances Lana Hawkins 2 main appearances Peter Riggs 2 main appearances Dr. Dana Stowe 2 main appearances Dr. Nick Biancavilla 2 main appearances Dr. Robert Jackson 2 main appearances Sherry Lowenstein
Recurring Guest Characters Officer Dave 1 guest appearances Radiation Therapist 1 guest appearances Courtney 1 guest appearances Charlie 1 guest appearances Ephram Steiner 1 guest appearances Irene Slater 1 guest appearances Dr. Sherman Millstein 1 guest appearances ⇤ « 1 2 » ⇥