1 is McGee because of his character development, from a computer nerd boy to a badass senior agent leader something, just like gibbs 2 is Gibbs, because he is badass and if he gets emotional once he makes you cry 3 is Ducky 4 is Bishop 5 is Palmer 6 is Abby 7 is Vance 8 is Torres 9 is Reeves 10 is Quinn...
NCIS Season 15 Opening Credits is best Opening Credits ever throughout the entire 15 seasons of NCIS and I the think the beard is a symbolism to his experience he had as prisoner of the rebels for two months in Paraguay that changed him. I also glad they letting Tim McGee keep the beard is symbolism to his experience that changed him.