Stephanie Nogueras Ava Actor Jean-Michel Le Gal Milton Actor Beatriz Yuste Nurse Actor Michael Chiklis Justin Guest Star Andrew Liner TJ; Nico Guest Star Sherri Saum Erica Guest Star Lee Tergesen Rob Guest Star Stephen Thomas Kalyn Tyson Guest Star Stephen McHattie Joe Guest Star Howard Gordon Writer, Executive Producer Alex Gansa Executive Producer David Shore Executive Producer Erin Gunn Executive Producer Daniel Pearle Executive Producer Milan Cheylov Executive Producer Frank Siracusa Executive Producer John Weber Executive Producer Jacob Cohen-Holmes Executive Producer Jimmy McGovern Executive Producer Sita Williams Executive Producer Roxy Spencer Executive Producer Louise Pedersen Executive Producer Mike Skerrett Writer Tazbah Chavez Director