Timothy mcgee (24 episodes) michael weatherly. North and gina lucita monreal explain how the prequel series will be a darker story compared to the main series. Leroy jethro gibbs (24 episodes) sean murray.

Tony dinozzo (24 episodes) brian dietzen. Origins showrunners david j. A murder prompts the reopening of one of tony's old investigations, leading gibbs and dinozzo to reverse roles to solve the case.