Benevolent Boss: To the Enforcers. In fact, she may very well be their best boss EVER.
In fact, despite an obligatory "I will make you pay if you betray me to my enemies" scene, her firing the Enforcers was relatively civil, even giving them their possessions, money and their final payment before sending them off.
The Chosen One: Kuro suggests that she's something like this for the Oni, the result of Hiruzen's last contingency plan before Tarakudo killed him. Meanwhile, Blankman's comments suggest she's also the Chosen One of the Ben Shui order (as was implied in canon).
Evil Costume Switch: Trades out her normal outfit for a ninja robe topped by a Black Cloak and a circlet crown. Though she's ditched the crown ever since Ikazuki's coup, until she can prove to herself she deserves to wear it.
It arguably hits a fullscale Villainous Breakdown after Tohru's failed attempt to capture her in the Vault of Endless Night, as she is now utterly convinced that the heroes (and humans in general) are determined to seal or kill her.
Villains Out Shopping: Jade is often shown doing various non-villainous things when she's not busy fighting for the masks and tablets, such as video games and (on Halloween, obviously) trick-or-treating. She's also shown to take advantage of new developments for fun, such as pitting her tribe of Shadowkhan against Ratso's in a baseball game, or using her new contortionist skills to cheat at bets with the Enforcers, or using a Ninja Khan to vacuum. Hell, she'll sometimes even find ways to have fun during her schemes, like the time she and the Enforcers raided a food stand at an amusement park she was attacking.
We Can Rule Together: Offers Viper a position as her right hand minion. Viper refuses. She later decides Viper doesn't have a choice and brainwashes her.
Mook Promotion: The fact that Jade kept them around so often is what allowed them to evolve to sentient thought, as per the Shadowkhan life cycle. This also lets them escape Ikazuki's curse that blocks Jade from summoning her tribe. They're eventually even allowed to remove their masks as a symbol of this.
Use Your Head: How Left frees Jade's astral form from Lung's magic sphere.
The former head of the Dark Hand, recruited by Jade to serve as the Shadow Hand's foreman. Eventually betrays Jade out of resentment, and is handed over to the authorities as punishment.
The Consigliere: Tries to focus the Shadow Hand on ordinary crime, but keeps getting overridden by Jade.
Humiliation Conga: Jade punishes him for his betrayal by having him stripped naked and dumped in a plaza full of tourists, which leads to him being arrested. And this is on top of the months he spent living as a common crook on the streets.
Humans Are Superior: Feels this way, as he says during his "The Reason You Suck" Speech to Drago about demons and magical beings in general, essentially saying that they are sore losers who can't accept that mankind rules the Earth now. Though this brings up an interesting question — why is he working for Jade then?
Kung-Fu Wizard: As stated above, he has both magic and martial arts, and will use the first to amp up the second.
Sword and Gun: Arms himself with a gun and a rapier before entering the Vault of Endless Night.
Tragic Keepsake: It's implied in story, and confirmed by Word Of God, that his revolver is the same one his father committed suicide with.
Underestimating Badassery: Jade admits he's strong, but doesn't think he can stand up to Jackie. When they do fight, Blankman fights him fairly evenly (then again, Blankman is using magically enhanced weapons, and Jackie is too nice to play for keeps).
My Species, Right or Wrong: Betrayed the Elders to Tarakudo because he believed the latter's promise of revitalizing their decadent race. Now, he says, if Jade can prove herself as a proper ruler, he'll do the same for her.
The Eldest of Shadowkhan, he was killed by Tarakudo personally during his rebellion, though his spirit lingered on long enough to pass on a cryptic threat.
Glass Cannon: While the magic snake they conjured to attack Tarakudo was impressive, due to their advanced age and decaying power, he was easily able to stop it and kill them.
Laser-Guided Karma: In order to preserve their own dwindling chi, they stopped creating new Shadowkhan from themselves and started harvesting human souls to do so, which led to Tarakudo, who killed them. Lampshaded by Kuro.
No Immortal Inertia: Upon their deaths, their flesh turned to dust, leaving behind frail bones.
Our Vampires Are Different: The technique they used to extend their lives with stolen chi is explicitly stated to be an attempt to mimic jiangshi, a Chinese vampire that feeds on chi, one of which appeared in canon.
Evil Is Petty: Rubs it in the Chans' faces that even if he's back in jail, he's ruined their future.
Humiliation Conga: Gets overpowered by Jade, kept locked in a closet for weeks, gets sent back to jail, tricked into helping the heroes, sent back to jail again, and finally dies. You almost feel kind of sorry for the old bastard by that point.
An Evil Sorcerer specializing in shadow magic that Jade commissions a project from.
Jerkass: Besides the Cold-Blooded Torture he inflicted on Jade, when he was a child, he hid sticks around the neighborhood to beat up the other children with.
Offscreen Villain Dark Matter: Has set up a series of safe houses and supply depots around the world, since when he tried and failed to take over from his sifu, he was forced to flee and lost all his resources, and didn't want it to happen again. He never gets a chance to use them.
Smug Snake: Is so utterly convinced of his genius that when his plan falls apart, he actually blames Jade for it.
Squishy Wizard: Is quite a skilled sorcerer, but useless in a physical fight as proven when Right kills him.
The Starscream: A failed one, he tried to take Wong's position and power by force one, but Wong "played possum" and forced him to flee, with Wong being defeated and dying before Lung could try again.
Sympathetic Magic: Uses a lock of Jade's hair that he got in a trade with Verde to capture Jade (Right had been aware of the possibility, and had been burning her hair, etc. to try and prevent something like that).
Undignified Death: Has his foot severed to keep him from escaping, and begs for mercy as he dies.
Villainous Breakdown: Starts cracking when his plan to break Jade fails, and falls apart completely when Left and Right attack his fortress.
Xanatos Speed Chess: Wong's first lesson to Lung was "It's not how good of a planner you are, but how good you are when the plan fails", but Lung completely failed with that, since even when it's clear he's killing Jade, he just blunders along.
The son of Shendu, he spent some time as a student of the Matriarch (Jade's future self) before betraying her and traveling back in time in order alter the future to his favor.
Ungrateful Bastard: Lampshaded by both Karasu and the Matriarch — she freed him from Verde's control and gave him a chance to redeem himself, and he betrayed her.
Villainous Breakdown: After all his plans fail, he flies into a rage, saying he'll just smash everything in sight and see what affect that has on the timeline. Fortunately, he's sent back to the future before he can.
You Exclamation: When he runs into Blankman, implying they're enemies in the future.
The Demon Sorcerer of Fire, and also a dragon and Drago's father. The first magical enemy the Chan family faced, he is currently trapped in statue form in Section 13.
Fisher King: When Hero was the dominant Aspect of Jade's mind, the cloud seas were bright and white, and it was always day, but when the Queen took over, darkness started to overtake the mental world, and now Home is the only beacon of light left in a world covered in shadow.
Fisher Kingdom: It appears that the state of the "Jade Sea" is dependent on Jade's mental state
Meaningful Name: Not only are the Aspects aspects of Jade's mind, for many of the Aspects, their name is exactly what trait they represent, with "Mother" and "Father" being exceptions, with a few others.
Red Oni, Blue Oni: The blue to Hero's red, as he represents restraint, repression, and generally being obedient and taking the safe path. Hero claims that if Father had been in charge, Jade would never have accomplished anything.
Dragon with an Agenda: Her position among the Queen's forces is never really stated, but she is seen apparently working with Father and Science now, saying that while Father wouldn't be her first choice as ruler, he brings Jade closer to her desire than Hero and the Queen.
Expy: Jade likens her appearance to a female Harvey Dent (aka Two-Face).
Evil Costume Switch: Hero mentioned that she used to look like Jade wearing Captain Black's outfit. Now she wears a modern-day gold-colored general's hat and classical Chinese armor adorned with jewels.
Close-Call Haircut: Ozeki accidentally rips a chunk of her hair out when his fist just barely misses her head.
Traumatic Haircut: A while later, Right cuts off most of her hair after defeating her as a trophy and because Jade needs it for something.
Shortly after that, Chow accidentally shaves off a clump of her remaining hair during the fight in the Vault of Endless Night.
Finally, Jade has all her hair shaved off when she sets up the ritual to force her Face-Heel Turn. Viper was not pleased when she woke up and realized that.
Combat Pragmatist: Sneaks attacks whenever she can. Eventually starts using a blade in her fights with Right.
Crazy-Prepared: Always carries some onions around in case they run into Jade or her minions. It's been commented she's started smelling like them. After she starts using a blade, she cuts onions with it so it will be extra effective on Oni.
Berserk Button: Don't hurt children in his presence. Or tell him wrestling is fake.
Shen Chan's refusal to stay and help Jade also really gets him riled up.
Honor Before Reason: Is so determined to restore his luchadore honor by winning the championship without magical aid that he doesn't aid in going after Jade. Paco calls him out on this which convinces him to change his mind.
Sixth Ranger: Joins the rest of the team about halfway through the story.
Kick the Son of a Bitch: With all the grief he gave Jade and other characters, both here and in canon (in the Halloween chapter, he was going around insulting people, even insulting one girl so much she found herself trying not to cry, not to mention that he enjoys Halloween mainly because it allows him to do this), it's really hard to feel sorry for him.
Battle Butler: Apparently holds the same position to the Matriarch's daughter that Left and Right hold in the present.
Legacy Character: He is apparently named after a important figure from Shadowkhan history.
Noodle Incident: Is surprised when the Matriarch's transport spell actually sends him back in time successfully to where he wanted to go, mentioning "the bull" as the most memorable of numerous occasions where it did NOT.
A future version of Jade from the timeline Drago and Karasu come from, she had Drago as a student for a time, but the Ungrateful Bastard betrayed her and tried to alter history for his favor, so she sent Karasu after him. Not much else is known about her, save the fact that she's still in control of at least the Shinobi tribe, and has a daughter.
Mama Bear: You do not threaten her daughter (or likely anyone else she cares about). The fact that her daughter's Battle Butler was strong enough that she felt he was the best choice to send after Drago speaks volumes about this.
She also has Drago brutally beaten by Shadowkhan with metal bats and imprisoned after he's sent back for threatening her family's existence, then put in one of the "good" cells (and she considers that merciful).