Mark Harmon Narrator, Executive Producer Austin Stowell Leroy Jethro Gibbs Actor Kyle Schmid Mike Franks Actor Mariel Molino Lala Dominguez Actor Tyla Abercrumbie Mary Jo Sullivan Actor Diany Rodriguez Vera Strickland Actor Philip Winchester Mason Franks Guest Star Adam Campbell Dr. Donald "Ducky" Mallard Guest Star Shea Buckner Dwayne Pride Guest Star Caleb Foote Randy Randolph Actor Julian Black Antelope Dr. Tango Guest Star Bobby Moynihan Woody Browne Actor Shiloh Fernandez Thomas Mulligan Actor Russell Posner Corey Jones Actor Sean Harmon Executive Producer Gina Lucita Monreal Executive Producer, Writer David J. North Executive Producer Niels Arden Oplev Executive Producer, Director Margarita Matthews Writer Matthew T. Brown Writer Ron McGee Writer Brendan Fehily Writer Jessica Lowrey Director Diana Valentine Director Maria Jacquemetton Writer Daniel J. Egbert Writer Jonny Gomez Writer Patrick Cady Director James Whitmore Jr. Director Rafael Samano Writer Lionel Coleman Director