For a time now I've been mulling it over trying to figure out which characters would best match what personality types. So far...I got almost nothing.

It's pretty easy to split the Extroverts and the Introverts:

Extroverts: Tony, Ziva, Abby
Introverts: Gibbs, McGee, Ducky, Palmer

Gibbs could possibly be INTJ but I don't know enough about the other types to feel all that comfortable making the call. Gibbs is definitely introverted, if he's not at work he's home working on this boat. His famous "Gut" could be iNtuition. Not too sure on the TJ part I'm going to have to do a little more research when I have enough spare time. He certainly has the "if they don't work then to hell with the rules" attitude that's the pride of the type. Authority just by itself doesn't seem to impress him that much.

Anyway if anyone wants to contribute then feel free.