1 | Ncis - Season

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

A former homicide detective with a charismatic but often immature personality. NCIS - Season 1

Introduced as a recurring probationary agent from Norfolk; he becomes a more permanent fixture later in the season. The first season of (originally titled Navy NCIS

The stoic lead agent known for his strict rules and interrogation skills. NCIS - Season 1

Debuts mid-season as the new assistant medical examiner after Gerald Jackson is injured.