Marcia Gay Harden Dr. Leanne Rorish Actor Bonnie Somerville Christa Lorenson Actor Raza Jaffrey Dr. Neal Hudson Actor Luis Guzmán Jesse Sallander Actor Melanie Chandra Malaya Pineda Actor Harry Ford Angus Leighton Actor Benjamin Hollingsworth Mario Savetti Actor William Allen Young Dr. Rollie Guthrie Actor Angela Relucio Risa Park Guest Star Ellia English Isabel Mendez Guest Star Christina Vidal Gina Perello Guest Star Jillian Murray Heather Pinkney Guest Star Tommy Dewey Mike Leighton Guest Star Sadie Stratton Kelly Rockman Guest Star Kenneth Mitchell Cory Rockman Guest Star Nikhil Pai JJ Coyle Guest Star Zuleyka Silver Kamilla Guest Star Mary Mouser Tia Benton Guest Star Virginia Tucker Elena Turner Guest Star Tim Guinee Adam Benton Guest Star Graham Hamilton Henry Randall Guest Star Courtney Ford Danielle Randall Guest Star Jesse Wang Sang Han Guest Star Becky Wu Fannie Lee Guest Star Michael Silver Dr. Paul Weatherly Guest Star Jim Titus Medic 1 Guest Star Aris Mendoza Medic 2 Guest Star Jesse Bradford Gordon Heshman Guest Star Joshua Keller Katz Medic 3 Guest Star Michael Seitzman Executive Producer David Semel Executive Producer Ryan McGarry Executive Producer Marti Noxon Executive Producer Linda Goldstein Knowlton Executive Producer Kristen Kim Writer Constantine Makris Director