Scott Bakula NCIS Special Agent Dwayne Pride Actor Lucas Black NCIS Special Agent Christopher LaSalle Actor Vanessa Ferlito FBI Special Agent Tammy Gregorio Actor Rob Kerkovich Forensic Scientist Sebastian Lund Actor Daryl "Chill" Mitchell Investigative Computer Specialist Patton Plame Actor Shalita Grant Special Agent Sonja Percy Actor CCH Pounder Dr. Loretta Wade Actor Tom Arnold Guest Star Derek Webster Guest Star Sprague Grayden Guest Star Jamie Renell Guest Star Brad James Guest Star SayGrace Guest Star Gary Glasberg Executive Producer Mark Harmon Executive Producer Martha Haight Executive Producer Christopher Silber Writer Michael Zinberg Director