Gina Lucita Monreal Creator, Executive Producer, Writer David J. North Creator, Executive Producer, Writer 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 Caleb Foote Special Agent Bernard Randolf Guest Star Patrick Fischler SAC Cliff Wheeler Guest Star Sean Harmon Executive Producer Niels Arden Oplev Executive Producer Brendan Fehily Writer John Terlesky Director