October 31, 2003 was the air date of the first NCIS episode Yankee White,
In the first episode of the spinoff from JAG to NCIS "Ice Queen"
The first Episode of NCIS premiered on September 23, 2003.
McGee's first episode was #7, "Sub Rosa".
None. Gibbs and DiNozzo are the two characters who have been present in every single episode of NCIS that has aired till date.
Spider and the Fly is the first episode of NCIS season 8. The last episode before that was the last episode of season 7 - Rule fiftyone
No NCIS episode aired on December 1st. Road Kill, Season 6 Episode 10, aired on December 2nd 2008.
Season 2 Finale - Episode 'Twilight' - Aired on May 24, 2005
season 1, episode 7- sub Rosa
The first episode of season 7, "Truth or Consequences".
Tony Dinozzo joined NCIS right from the beginning. He is one of the 3 characters (with Gibbs and Abby) to have appeared in every episode of NCIS that has aired till date
First episode season 6
It is called "Bury Your Dead."