Freddie Highmore Dr. Shaun Murphy Actor Antonia Thomas Dr. Claire Browne Actor Nicholas Gonzalez Dr. Neil Melendez Actor Hill Harper Dr. Marcus Andrews Actor Richard Schiff Dr. Aaron Glassman Actor Tamlyn Tomita Allegra Aoki Actor Christina Chang Dr. Audrey Lim Actor Fiona Gubelmann Dr. Morgan Reznick Actor Will Yun Lee Dr. Alex Park Actor Paige Spara Lea Actor Tyler Ritter George Reynolds Guest Star Mason Gooding Billy Cayman Guest Star David Shore Executive Producer Daniel Dae Kim Executive Producer David Kim Executive Producer Sebastian Lee Executive Producer Karen Struck Writer Joanna Kerns Director