I watch NCIS essentially for the caracters.
I consider that these people got the best chemistry with each others. Unlike other criminal tv shows, I don't really care for the cases, as long as Tony pranks and kids everybody, Gibbs slaps everybody's head, Ducky talks way too much and Abby stays like she is, I'll watch that show for another 6 seasons. That is exacltly why this show (with The Office) will never get old.
SO, my question for you NCIS lovers is: What is your favorite character?
Me, being a sci fi geek, and a little weird considering all these people, my favorite person is McGee, or Probie, or Timmy, or McGeek, or McFlowerPower, or whatever name's the others give him.
Timmy is my favorite chacter because he's such a good guy, always there for everybody and also very funny in his own way. Who else Tony would tease if he left?