Guest Stars Jason George as Dr. Ben Warren Jaicy Elliot as Dr. Taryn Helm Debbie Allen as Dr. Catherine Avery Stefania Spampinato as Dr. Carina DeLuca Alex Landi as Dr. Nico Kim Richard Flood as Dr. Cormac Hayes Alex Blue Davis as Dr. Casey Parker Barrett Doss as Victoria Hughes Jasmine Guy as Gemma Larson Okieriete Onaodowan as Dean Miller Grey Damon as Lieutenant Jack Gibson Richard Jin as Elliott Calhoun Adriana DeGirolami as Finley Calhoun Miguel Sandoval as Pruitt Herrera Amanda Payton as Dr. Daphne Lopez Co Starring Zaiver Sinnett as Dr. Zander Perez Vivian Nixon as Hannah Brody Norman Nixon, Jr. as Nurse James Devin Way as Blake Simms Allyssa Amelia Entz as Jamie Molly Baker as Sharon Caldwell Christianno DeRushia as Trey Melissa Oliver as Perfusionist Uncredited Kathy C. An as Nurse Bokhee