McGee's nephews Brad and Chad, are polar opposities. The older a Lothario-in-Training, idolizes Tony. The younger, who loves to proclaim loudly "I'm proud to be a McGeek, adores McGee. Chad's and Brad both respond to RJ "on it, Boss, " . A DiNozzo wannabe, Brad loves movies and quotes lines, especially from Star Wars. He calls his baby brother mini Mac and Baby Einstein. He loves games, but not games of skill. Where Brad loves charades, Chad's favourite game is Scrabble. Chad wants to be the next Thom E Gem city, and has almost completed his novel...Like McGee he uses everyone around his as his characters. Unlike his NCIS uncle, heknows when to really change the names to something that isn't close to his teams names...Brad also loves the fact that McGee is an author, and has read parts of Deep Six, but would never tell him in honesty. He enjoys learning about computers a little more and will as McGee or Abby how they do certain things. He looks up to Gibbs, RJ and Ducky for being who they are. Unlike Brad and Tony, he isn't afraid of his boss. He hopes that one day he'll be like his uncle and become an NCIS agent. Brad wants to be the next Magnum PI, but not work as hard as an NCIS agent.Brad is a smooth talker. Chad is honest and sometimes has trouble getting the right words out.While Brad tries to do movie impressions. (He can be heard saying this (event) reminds me of..( a movie he's seen) Chad likes to create impressions and is always working on the latest masterpiece. Brad is a chauvinist. Chad is a gentleman. Brad can barely turn a computer on, let alone work McGee Magic. Chad is a computer whiz and is charismatic without trying. Like Tony, Brad is a class clown, and his humor is frequently inappropriate. Like Tony, he has a good heart. Deep down he is a decent guy like chad and does the right thing.He drives a $400.00 red mini-Ferrari, sleeps in a red Ferrari car bed and lives for the day he will own of a real Ferrari ( just like Magnum!) He's the heart breaker of his 5th grade class, calling every female he meets"babe." Chad is a friend of Jordy, and is liked by RJ, Gibbs, and both of their teams. Brad is afraid of Jordy, who threatens constantly to kill him 100 ways with a paper clip and 50 ways with a comb if he ever bothers Ziva. Gibbs, RJ, Johnathan, and everyone but Tony, consider Brad a mild annoyance. He has a Magnum PI lunch-box, a treasured gift from Tony, who first calls him little "McGeek." He longs to head a team like RJ, whom he respectfully calls "boss". He's the recipient of many slaps from mini-Gibbs, which no child calls RJ to his face except Johnathan Morgan. Brad frequently uses Tony's expressions such as "On it, boss." He likes to tease Thomas, who calls him Bradley (his sis calls him Milton..Bradley) much in the same way Tony teases McGee. Following in Tony's footsteps, he calls Thomas "Tom E" . He wears clothes that reflect Tony's style. His fav shirt is a red Hawaiian Magnum-type button down. He pays strong attention to his looks. And, just like tony, he considers himself a ladies man. His bragging annoys Olivia and Valentina. He loves to tease them, good-naturedly (usually) and that's one of the reasons he won't stop.

Valentina Allegra, and her brother Thomas, from jet-setting parents, were adopted by Tony's relatives upon the murder of their own. She appears every bit the proper aristocratic young lady. He the proper gentleman. In truth she is half Marie from the "Aristo-Cats" cartoon and half Harriet the Spy. (He is a cross between......?) Their impish grins hide devilish behavior. Both are book worms and computer geeks, their favorite toys are espionage gadgets. They meticulously schedule their days and every activity. Never without a paper and pen or blackberry. They are punctual and often early. Highly allergic, they are extremely sensitive to dust, dirt, and almost everything."You still owe Daddy money", the exceptionally bright little tech-ies remind Tony, "and he's starting to collect." DiNozzo finds himself an instant father to the one girl he can't charm and her 11-year-old brother who acts like her guardian. When they arrive from England to spend most of the summer holiday with him, the little geniuses inform Tony that they will be spending their holiday with him while their family is away. " They realize they are only being sent as annoying payback for a debt he still owes his relatives. Despite DiNozzo's best efforts, neither is impressed with him in the least.They don't want him getting too close.The kids are quite wealthy and never let Tony forget it. The girl expects everyone around her to wait on her. Her brother expects his sister's every whim to be catered to. Both gamers, they easily forsake their expensive tailor-made clothes for gamer t-shirts and jeans. Both feel genuinely accepted and liked by McGee. Both adore him and and gravitate towards him, frequently peppering him with questions.They reflect his style of dress, casual, but fastidious.Valentina Allegra cannot stand McGee's young relative, who frequently calls her 'babe'. (She usually responds with a cutting remark, leaving his ego slightly wounded. Her brother is equally able to do the job, frequently coming to his sister's aid.) Both true Italians, they find themselves thinking, speaking and teaching Italian to Tony's coworkers and members of RJ's team. Thomas (called Thomas the train by Chad) is called Robin by RJ due to his annoying habit of consistently whistling.

Johnathan, the son of Ducky's best friend, discovers his mother will remarry. He runs away from his boarding school, and straight to the one stable force in his life. Ducky had babysat the child from the time he was a toddler, soothing his crying and nightmares with tales of brave knights slaying dragons and tales of King Arthur, magic lands, and heroic kids. When the child was a bit older, stories of spy adventures enthralled him. Under Ducky's care, the boy was less disturbed about his parents' impending divorce. Ducky was the only stable force in Johnathan's life. In Ducky's absence the boy found solace in books. He frequently mimacked Ducky's storytelling manner, and then began to tell his own versions. Through his stories, he could escape from his parents' arguing. He wants to become a doctor, like his hero. He collects models of classic cars, and knows a ton of info about them, giving Tony a run for his money! The bright child knows somewhat useless but interesting facts. He's developed a passion for Ducky's expressions. He is learning Scottish expressions, and frequently says "Good grief man", instead of "Good god man". He gets along well with Abby's relatives. He likes their style and will frequently try to adapt it. His favorite outfit is a black shirt showing the bones of the human body, that glows in the dark, and a brain hat that he has fashioned himself. Everyone including Ducky finds him lovable, but a bit odd. He is liked by RJ, and Team Gibbs, but confuses Jordy. The child is a charmer, and a gentleman, he is soft spoken, and easy to like. He is clairvoyant, having an uncanny knowledge of things pending. He loves Rubik's Cube and Operation. He is fascinated with RJ's boomerang. He is known for having a section in his brain for 'useless information', which sometimes comes in handy for Abby's relatives cases. He is able to quickly disassemble almost anything and reassemble it in a relatively short time. To the annoyance of his parents he has taken apart clocks, door chimes, and remotes as well as their cell phones. Although he will not touch things belonging to his godfather. When his pets have died, or he finds a dead animal he immediately wants to do an autopsy. He talks gently and respectfully to whatever he's doing the autopsy on. He keeps a stash of gloves in his closet and in the family basement so he is always ready should the situation arise unexpectedly. He did his first autopsy on his teddy bear when his father ran over it. When given a video game he instantly took it apart to discover its inner workings. He's handy to RJ's team because he also takes apart alarm systems and locks. Abby calls him 'Duck-man" because he reminds her so much of Ducky. Brad calls him Dr. J.

Johnathan's older sister Daphne, nicknamed D'Abby by Brad, (and Daffy Duck by Chad!) is a cross between Ducky and Abby. Like her brother, she wears a brain hat, and a black skeleton shirt. She is fascinated with the field of forensics. She loves big words and technical terms. She did her first autopsy at 22 months, and turned her two year old brother into her assistant when she was just three. She has a photographic memory, and is learning to play the bagpipes. Her fav show is Scooby Doo. She likes to sing, and tell stories.Olivia makes comics of her stories, and they can spend entire afternoons thinking about new ones.besides stories, she also writes her own songs. She want's to become an M.E. like Ducky or work in a lab like Abby. When she writes a song she writes about people who have touched her life and also whatever is around. She has a little crush on Chad and enjoys being around RJ and the gang. She's protective of the team and of her brother. Like Abby, she is nice to everyone. Until they show their true colors... watch out she will be watching you and telling you that she doesn't like you and she has her eyes on you...

Kate's younger sister, Olivia, also went to a catholic high-school, and has got the same uniform as Kate had. She was very close with Kate and is still upset about her death. She gets along very well with Valentina. She's tries to be nice to everyone, but when she gets angry, my advice would be to run for your life.She's very good at fighting, because Kate taught her everything she could do. She's a great artist, and has got sketches of every team member and the kid team (and also cartoons of everyone of them). She also makes comics of Daphne's stories. She used to be an actor, but she quit after the NCIS solved a murder case at the theater were she was playing.Because of her acting skills she's mostly the 'undercover girl'(a nickname given to her by DiNozzo). She loves to sing and dance. She's an energy-drink addict, who drinks a concoction of Hawaiian Punch, Coke and Seven UP and is every bit as hyper as Abby. She has an:who ever messes with my friends messes with me and is going to regret that' attitude. She sees Jamie, Jenny Shepard's son, as the brother she never had. For short: Olivia is a great undercover agent, kind, but deep inside her is a great fighter! She finds a kindred spirit and ally in Valentina Allegra, and is teaching her to fight.