Leroy Jethro Gibbs

Special Agent Mike Franks

Special Agent Lala Dominguez

FOS Officer Mary Jo Hayes

Special Agent Vera Strickland

Special Agent Bernard 'Randy' Randolf

Older Leroy Jethro Gibbs (Narrator voice)

SAC Cliff Wheeler

Woodrow 'Woody' Browne

Tishmal 'Tish' Kwá'la/Tishmal 'Tish' Kwa'la/...

Gail Price

Richard Kowalski

Special Agent Granville Dawson

JJ/NIS Special Agent JJ Henneberry

Roger/NIS Special Agent Roger Murphy

Dr. Lenora Friedman

Carl Loughlin/NIS Special Agent Carl Loughlin

Jamison 'Bugs' Boyd

Jackson Gibbs

Luke Fletcher

Dr. Témet Téngalkat