Abigail Sciuto

Abigail "Abby" Sciuto is a female Human who is the forensic scientist assigned to  SCIS's Major Case Response Team although she presumbly does work for other Agents.

She's well-known around SCIS for her Gothic style of clothing, her addiction to the high-caffeine beverage "Caf-Pow," and her highly-energetic personality which has her often hugging everyone, sometimes going off to topic much to Gibbs's annoyance and talking fast while waving her hands.

According to Jenny Shepard the mail-room employees call her "Energizer-Abby".

She is also one of the few members of the team (aside from Donald Mallard) who can claim to be close friends with Special Agent Leroy Jethro Gibbs which is further indicated by the fact that she and Mallard are the only ones that have never received Gibbs's trademark headslap although it should be noted that Agent Caitlin Todd, prior to her death, never received any of Gibbs's head-slaps either.