Introduced as a recurring probationary agent from Norfolk; he becomes a more permanent fixture later in the season.

The stoic lead agent known for his strict rules and interrogation skills.

A former Secret Service agent who provides profiling expertise and balances out the team's dynamics.

The first season of (originally titled Navy NCIS ) premiered on September 23, 2003 , on CBS. It follows the Major Case Response Team (MCRT) as they investigate crimes related to the Navy and Marine Corps. Season Overview