Guest Stars Brian Dietzen as Assistant Medical Examiner Dr. Jimmy Palmer Susan Kelechi Watson as NCIS Intel Analyst Nikki Jardine Deanna Russo as Ashley Titus Welliver as Navy Capt. Roger Walsh Alaina Huffman as Dana Arnett Robin Thomas as Dr. Neil Fleming Adam Huss as Navy Seal Lt. Michael Arnett Mark Matkevich as Jake John Vickery as Interpol Inspector Hugh Benson Co Starring Edward Conna as Metro Police Srgt. Frank Thompson Kimberly Atkinson as NCIS Special Agent Roberta Wells