Tony's daughter Kate Dinozzo is Tony's pride and joy. He raised her since she was a baby and after her mom passed away from childbirth. She got her name after Tony's old partner Kate Todd. Ever since Tony joined NCIS they became his family, Gibbs became his father, Ducky became his grandfather, Abby and Ziva were his little sisters, Mcgee is his little brother, and Palmer became his cousin. When Tony told the team about Kate they took roles in the family. Gibbs and Ducky became the grandfather's, Mcgee, Palmer and Vance became the uncle's. Abby and Ziva became the aunts. Tony couldn't decide on the godfather so they are Gibbs, Ducky, Vance, Mcgee, and Palmer. He also couldn't decide on the godmother so they are Abby and Ziva.