Noah Wyle Daniel Calder Actor Emayatzy Corinealdi Tia Young Actor Aliyah Royale Jira Calder-Brennan Actor Noel Fisher Paul Evans Actor Howard Charles Ethan Young Actor Elizabeth Laidlaw Victoria "Vic" Renna Actor Vinny Chhibber Liam Bhatt Actor Michael Patrick Thornton Jim Evans Actor Alanah Marie Johnson Young Jira Guest Star Anna Brockman Angelica Barrett Guest Star Corey Reynolds Harrison Brennan Guest Star Glynn Turman Nathan Gordon Guest Star Kristina Valada-Viars Elizabeth Guest Star Maximus Chase Evans Benny Young Guest Star Mike Geraghty Patient Guest Star Pam Mack Teacher Guest Star Rammel Chan Matthew Lee Guest Star Raven Whitley Kalen Guest Star Sadieh Rifai Elena Guest Star Sean Bradley Steve Guest Star Tony Peera Cashier Guest Star Ava DuVernay Executive Producer Greg Berlanti Executive Producer Sarah Schechter Executive Producer Caitlin Parrish Writer Erica Weiss Writer Victoria Mahoney Director