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Characters / NCIS Antagonists

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    Ari Haswari 
Played By: Rudolf Martin

"Sorry, Caitlin."

  • Arch-Enemy: To Gibbs in the first three seasons.
  • Arc Villain: Of Season 1. In the episodes to follow his debut in "Bete Noir", Gibbs becomes obsessed with the one that got away and is busy running a facial recognition search for months on end in the background trying to land a bead on the guy, and it finally takes the help of newcomer McGee to help zone in on him.
  • Badass Biker: In the finale of Season 1, he reappears on a motorbike clad in a red racetrack jumpsuit and matching helmet, and even takes a moment to taunt Kate by flipping his visor.
  • Badass Israeli: He orchestrates a clever attempt to weed out Marine One among a trio of helos shuffling around to disguise the one carrying the President with Smoky Sams, missiles that look every bit as threatening as the real thing but aren't deadly at all. By firing them at the convoy of helicopters, the pilots would have to interpret it as an attack and make emergency landings; the one with the President on board would land first, at which point Ari's men would destroy the decoys with genuine rocket launchers and capture President Bush, whom he called a "butcher" for causing many Israelis to go to their deaths. It never got that far, but it was very competently thought out.
  • Bastard Bastard: When accused of being a liar and a bastard, he admits that's half-right, as he actually is a bastard child. And has no qualms about blowing holes through womens' heads just for pissing him off.
  • Becoming the Mask: Was essentially conceived and raised to be a mole in Hamas.
  • Big Bad: Of seasons one and two, plus the first two episodes of season three.
  • Boom, Headshot!: How he kills two women, including Kate, and how he goes out. One to the head leaves 'em stone dead.
  • Deadly Doctor: Studied at an institute for medicine, as evidenced when he's able to properly examine a body in autopsy. It becomes a Chekhov's Skill when Ducky inadvertently realizes Ari's demonstration of medical expertise could be crucial in finally securing a profile on him, and it is.
  • Even Bad Men Love Their Mamas: It is implied that he cared for his late mother and believes his father is responsible for her death.
  • Even Evil Has Loved Ones: Ziva still loved him, even after what he had done. And he had an Israeli doctor and childhood friend he loved and planned on proposing to before Becoming the Mask.
  • Even Evil Has Standards: He found Gerald's inability to drive Ducky's vintage Morgan painful to listen to or see, and ultimately allowed Gerald to leave in his own car before he could do any more damage to Ducky's.
    • He also sincerely tells Ducky, "I would never harm a fellow physician", indicating that he genuinely respects him.
  • Evil Cannot Comprehend Good: His fatal mistake was that it didn't even occur to him that Gibbs would really trust Ziva to watch his back and assumed Gibbs was alone when he confronted him.
  • For the Evulz: Shot Gerald in the shoulder just to prove he was evil (which spelled curtains for his career at NCIS when Gerald needed months of physical therapy afterwards), blasted his Swiss associate Marta in the head all because she made him angry, and then put a matching bullet hole through Kate's head in order to torture Gibbs.
  • Gone Horribly Right: His father raised him to be a monster... who hated him for it and did everything he could to destroy what his father had worked for.
  • Hero Killer: The series' first. He even killed Kate to prove it.
  • Karmic Death: He dies via a Boom, Headshot!, the same way he killed Kate.
    • Killed Mid-Sentence: Also like Kate, he didn't get to finish a retort- after being told by Gibbs he would watch him die. Ziva capped him in the head and that was that.
  • Posthumous Character: He still affects the story long after his death.
  • Present Absence: Ari's death influences future seasons; sometimes in more overt ways, like the Big Bad of the first half of Season 12 being his half-brother and the first villain of Season 17 being his terrorist partner, but more often in more subtle ways, such as the ever-present tension between his sister Ziva and their father Eli.
  • Revenge by Proxy: He stuffs Kate into the fridge and tries to do the same to Abby, aware that it's the best way to make Gibbs suffer. He also tries to kill Jenny, snipes at McGee (who lucks out by unknowingly moving out of the way at the last second), and tries to kidnap Ducky. The only member of Team Gibbs he doesn't single out is Tony.
  • Small Role, Big Impact: Unusual to invoke this on an Arc Villain, but he was introduced two-thirds of the way through season one and died at the beginning of season three after only appearing in a grand total of five episodes, and is still an occasional influence of the team, who they work with, and who they go up against as of season seventeen.
  • Smug Super: He's good and he knows it.
  • Tyke-Bomb: All grown up. Eli David deliberately fathered him on a Palestini woman so that he would have a child he could raise to infiltrate Hamas.
  • Villainous Legacy: He's the one villain that never leaves the series. Long after he's dead, villains connected to him keep on coming out of the woodwork to terrorize Gibbs and the team.
  • You Killed My Father: Blamed his father for his mother dying in an Israeli attack on the Palestinians while Ari himself was away visiting his father. This was his Start of Darkness.

    Rene Benoit 
Played By: Armand Assante

  • Man of Wealth and Taste: He has a fondness for fine cognac.
  • N-Word Privileges: Only a French guy could give himself the codename La Grenouille (the Frog). But he does not appreciate having his his codename translated to English.

    Mamoun Sharif 
Played By: Enzo Cilenti

    Colonel (ret.) Merton Bell 
Played By: Robert Patrick

    Jason Paul Dean 
Played By: Dylan Bruno

    Alejandro Rivera 
Played By: Marco Sanchez

  • Accidental Murder: He opened fire on a cabin where he believed Gibbs was hiding out... it turned out to be his own sister Paloma inside.
  • Amoral Attorney: Is an ADA, but is working with the cartels.
  • Brother-Sister Team: With Paloma.
  • Dragon Ascendant: Has the ruling authority his sister did in the cartel now that she's dead, but no way of using it due to being imprisoned.
  • Feuding Families: With Gibbs.
  • Not Me This Time: Gibbs rightfully suspects him of ordering a hit on Abby in Season 15 because of how manipulative and scheming Alejandro was, and his potential connections, but Alejandro denied it, saying that he was actually for Abby, and his attempt to hold Abby captive- which spurred Gibbs to check on Alejandro as motive for revenge- was meant to serve as a warning for her to get away from him while she still could, and gave Gibbs sobering advice that this was because a cloud of death follows him wherever he goes.
  • Not So Different: When Alejandro accuses Gibbs of being a murderer whose father was shot dead by a coward when Gibbs interrogates him following the attack on Abby on Clayton, Gibbs says the same thing about how Alejandro shot his own sister to death by accident.
  • You Killed My Father: Alejandro sees Gibbs as a murderer and coward who took the life of his father Pedro and wants him to suffer for it.

    Paloma Reynosa 


    Jonas Cobb, The Port-to-Port Killer 
Played By: Kerr Smith

  • Being Tortured Makes You Evil: He was trained to weather any kind of suffering, but his psyche broke under the immense toll his training placed on him. His first successful assassination awakened an innate Blood Lust and he went rogue.
  • Big Bad: Season 8.
  • Disc-One Final Boss: His demise does not cast out the danger the NCIS operatives are facing. Rather, his murder of an agent with a secret access-granting microchip inside of them kick-starts a second conflict that threatens the organization all over again.
  • Disney Villain Death: Shot before he could act first and crashed out of a window several stories onto the roof of a car below, caving the vehicle in and leaving Jonas unquestionably dead if the bullets hadn't already finished the job.
  • Famous Last Words: "Liar."
  • Gone Horribly Right: He was trained to be a remorseless assassin, and that's exactly what he became. And then he decided to commit a few non-sanctioned assassinations...
  • Hero Killer: He killed Mike Franks.
  • Last-Second Chance: Vance and Gibbs gave him one final chance to lay down his gun. He did not go for it and was subsequently shot before he could open fire on them or the director of SECNAV, and knocked through the glass window behind him.
  • Sanity Slippage: The psychological abuse of Operation Frankenstein drove him insane after he made his first kill for the project.
  • Training from Hell: Deconstructed. The training was successful in instilling the intended skills, but also turned him into a Serial Killer.
  • Tyke-Bomb: Downplayed. He developed a twisted sense of superiority over right and wrong after his first kill. Then he went renegade and kept doing this out of a primal sense of liberation.

    Jonathan Cole 
Played By: Scott Wolf

    Harper Dearing 
Played By: Richard Schiff

  • Crazy-Prepared: Mutiple times, but his most notable instance was during an FBI sting operation in which he asked to 'use the bathroom.' When the SWAT team kicks down the door, all they find is an open window, and his bag left behind. And then a cellphone inside starts ringing...
  • Faking the Dead: Tries this to escape NCIS in the premiere of season ten by blowing up a car with his brother's remains inside, counting on the body to be so badly burned that only a partial DNA match would be possible. Gibbs doesn't buy it and manages to uncover the truth.
  • Misplaced Retribution: Blames NCIS for transferring his son to another Naval ship, and the Navy itself for a flaw in their systems (which they were correcting) for his son's death. Instead of, ya know, the terrorists who actually killed him.

    Sergei Mishnev 
Played By: Alex Veadov

  • Avenging the Villain: He is Ari's best friend and maternal half-brother, and he's out for Gibbs' blood to avenge him.
  • Bash Brothers: He and Ari are a villainous example of this trope. Literally.
  • Beard of Evil: Sports a Badass Beard and is definitely evil.
  • Best Served Cold: He waited a decade after Ari's death to take his Revenge.
  • Big Bad: Of season twelve, until "Cabin Fever".
  • Boom, Headshot!: How he killed Diane. He dies in the same manner from the hands of Fornell.
  • Call-Back: His ways of getting into Gibbs is mimicking the deaths of Jenny Shepherd, Mike Franks, and most notoriously, Caitlin Todd, the first two for The Team's cases, the last one is how he killed Gibbs' third ex-wife, Diane. His own death is a near-reproduction of Ari's: a single shot through the forehead.
  • Cold Sniper: Whether he is actually one or he only did it as a Call-Back to his late best friend is uncertain.
  • Disc-One Final Boss: He gets killing in the 15th episode of season twelve but there are still nine episodes left leaving to Daniel Budd to take over as Big Bad.
  • Karmic Death: He dies via Boom, Headshot!.
  • Mixed Race: His father is Russian and his mother is a Palestinian Arab.
  • Villainous Breakdown: When his final showdown is with Fornell, and not Gibbs:
    What is this?
  • Villainous Friendship: With Ari.
  • You Killed My Father: Or best friend (and half-brother) in his case.

     Daniel Budd 
Played By: Giles Matthey

The leader of a terrorist group called The Calling.

  • Big Bad: Of the season twelve finale and the season thirteen premier.
  • Child Soldiers: He creates them.
  • Karmic Death: Tony shoots Budd in the same places (the knee and the chest) that his people shot Gibbs. The difference being, Budd doesn't survive his wounds.

     Robert King 
Played By: Peter Jason

An extremist who sees himself above morality to save lives and tries to harness a deadly bioweapon by manipulating Abby.

  • Arch-Enemy: Abby's biggest and worst opponent, the anti-Abby of sorts. Highly unethical and intelligent and able to cover his tracks and knows scores of connections to perform hits.
  • Big Bad: Of season 15, effectively after ordering a hit on Abby.
  • Kick the Son of a Bitch: After he taunts Gibbs that he'll escape from prison again, Gibbs doesn't even reply- he immediately smashes King's nose in with his fist and the blow slams him into the side of a car, knocking him out cold. The message was clear: DO NOT hurt people Gibbs loves, ESPECIALLY Abby.
  • Manipulative Bastard: One of the series' VERY worst, who played Abby for a sucker in his first appearance and loves mind games and intimidation to control people.
  • Well-Intentioned Extremist: Is extremely willing to kill for the sake of the whole, considering these deaths "casualties of war".

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