Mark Harmon NCIS Special Agent Leroy Jethro Gibbs Actor Sasha Alexander NCIS Special Agent Caitlin Todd Actor Michael Weatherly NCIS Special Agent Anthony "Tony" Dinozzo Actor Pauley Perrette Forensic Specialist Abby Sciuto Actor Sean Murray NCIS Special Agent Timothy McGee Actor David McCallum Dr. Donald "Ducky" Mallard Actor Brian Dietzen Jimmy Palmer Guest Star Megan Ward Laura Rowens Guest Star Neil Hopkins Jeremy Davison Guest Star Sterling Macer Jr. Marine Sgt. Chris Hegarty Guest Star Lindsay Price Navy Lt. Pam Kim Guest Star Missy Yager Michelle Davison Guest Star Josh Daugherty Devon Kane Guest Star Harriet Margulies Attractive Older Woman Guest Star Donald P. Bellisario Executive Producer Jesse Stern Writer John C. Kelley Writer Dennis Smith Director