Guest Stars Khandi Alexander as Chief Medical Examiner Dr. Alexx Woods Josh Stewart as Colin Astor Chad L. Coleman as Tech Kevin Landau Kim Hawthorne as Wendy Kramer Elizabeth Ann Bennett as Teresa Vance Stephen Martines as Jeff Peralta Peter Lavin as Dr. Donald Phelps Fredro Starr as Ricky Gannon Co Starring Kavi Ladnier as Phlebotomist Nurse Joleigh Fioravanti as Kristen Peralta Jonny Siew as ER Tech Gina Sorell as Nurse