CBS has some character profiles which were written in either season 1 or season 2. They are old. Some of the info is not supported by information from the show. Be careful how you use it.

Here are the CBS links

Gibbs' profile
Tony's profile
Abby's profile
Ducky profile
Kate's profile

Here are the copies:

Gibbs CBS profile
Tony's CBS Profile
Abby's CBS Profile
Ducky's CBS Profile
Kate's CBS Profile