Guest Stars Emily Tyra as Dr. Noa Kean Noah Gray-Cabey as Dr. Elliot Dixon Emily Alyn Lind as Ariel Braeden Patrick Fischler as CDC DD Gareth Reddick Mark Famiglietti as Jeremy Weeb Caitlin Fitzgerald as Dr. Gretchen Kerr Meg Steedle as Dr. Kelly Pruitt Ramses Jimenez as Raul Gomez Alicia Urizar as Alicia Dias Ron Perkins as Bill Chislett Caitlin Harris as Anna Chislett Tom Williamson as Russell Danvers Sundra Oakley as Regina Don McManus as Exorcist Co Starring Angela Relucio as Nurse Risa Park Jeffrey Larson as Private Kyle Elkin Gabriela Banus as Yolanda Ramos