Leroy Jethro Gibbs

Gibbs can be very charming in an understated way, and he has a dry sense of humor. He is something of a gentleman, often being very decorous and restrained, such as when his last ex-wife, Stephanie, lashed out at him for questioning her boyfriend as a suspect on a case. He already knew that her boyfriend was having an affair with her friend, but did not throw it in her face in retaliation.

Gibbs has a love for children, and often goes out of his way to help and comfort them. Some instances are when he finished the tree-house for the son of a dead marine, giving a scout who found a dead body his NCIS hat, letting a girl under NCIS protection stay at his house, and using his woodworking skill and his father's help to make toys for kids at Christmas time.

Gibbs is very unforgiving of his colleagues's mistakes and demands high quality work from his team as well as himself. He rarely accepts apologies for mistakes, and will headslap most of the members of his team whenever they become distracted from the current case with DiNozzo usually receiving most of the slaps. He has even been known to headslap himself when he falsified evidence in order to protect a Marine's career.

Gibbs's chief hobby is wood-working, and is famous to his team and colleagues for building boats by hand in his basement. He has made four boats, the first three being named after each of his ex-wives and burned after their completion and his divorce from the wife in question. The fourth was named the Kelly, after his deceased daughter, and was gifted to his goddaughter, Amira. After removing the fourth boat from his basement, Gibbs moved on to making wooden toys for orphans, which he donated for Christmas in 2009.

Gibbs is a chronic coffee-drinker, even having a rule concerning coffee. He is farsighted, and for a few years he refused to wear the corrective lenses that he needed to allow him to read things like fine print. Gibbs also displays an uncanny knowledge of his co-workers's activities. He will often walk into the squad-room when his team is engaging in a completely off-topic conversation. When he arrives, his team will switch over to conversing about the case, covering for their distraction, but Gibbs often follows up with a comment related to the off-topic conversation, indicating that he is aware of what they were discussing which leaves his team surprised. During his brief tenure as head of the team, Tony attempted to replicate this by "listening in" on the team's conversation with a cell phone and an open line. However, Gibbs also demonstrated his knowledge of the conversation without Tony's props.

Though he has a strong addiction to coffee, he dislikes Caf-Pow. After once sampling Abby's, he spit it back out into the cup and set it back down on the table. 

Also, as a Marine, Gibbs takes every crime committed against the Marine Corps and Navy personnel very seriously and as such, goes to great lengths to ensure that the families of the victims get the justice and closure they deserve.