Anti-Hero: Varies on writer, from anywhere to Type I to III, with Pak playing him at a III by lying to those close to him into getting his way. not to mention putting innocent people including his own son in harms way for his personal gain. In fact, at times he's seems to be the biggest threat, however he never crosses the line into straight Villain or Anti-Villain.
Not That Kind of Doctor: Played with, while Bruce doesn't have a doctorate in medicine, he was originally a med student. Because of this, he is capable of providing medical care in a pinch, such as when he gave his cousin Jen that blood transfusion.
Strong As They Need To Be: With no known limits and it being known that Banner mentally resists him thus restraining his powers, this takes completely new meaning, just look at his entry on the page.
Villain Protagonist: He was a mafioso, a torturer, a bully, a murderer, a mercenary, a lecher, a Break Them by Talking-giver to broken people, and proud of all of it. He mellowed out during the Dale Keown run, which is why he may have a type IV rating above.
Good Samaritan: Ran multiple charity organisations, research for cancer cures provided food for starving children, shelters and education for war-refugees, supported revolutions against tyrants of oppressed peoples through much lesser loss of lives than real world military interventions can manage, and so onwards.
Eldritch Abomination: He has essentially gradually turned into one, both in terms of raw power, destructive nature, and turning even more powerful from both dark magic and nuclear explosions, as a force of pure destruction merging forces of both science and mysticism. More openly after picking up one of the hammers of "The Worthy".
This is especially true when he goes full on "Worldbreaker". For example, he went Worldbreaker in the Dark Dimension and reduced most of the realm into floating ruble.
World's Strongest Man: Word Of God is that World War Hulk Green Scar was "stronger than any mortal and most immortals in the Marvel universe", and as always, except the Onslaught fight, he was holding back a lot so he wouldn't risk to destroy his entire home reality. Hulk's full level of power is of a literally infinite scale going by the Beyonder, and that he overpowered a villain with the power of two Celestial-level beings.
Convenient Miscarriage: Nightmare killed her and Bruce's unborn baby. He also raped her in her sleep to magically conceive the entity "Daydream", which is Betty's daughter that she never met.
Informed Attribute: Supposedly his strength and durability are related to the makeup of the atmosphere of whatever planet he's on at the time. That hasn't really been expanded upon.
My Greatest Failure: Most people point to him breaking his oath as a shadow guard, but he stands by that. He sees his greatest failure as believing that he was the Sakaarson.
New Powers as the Plot Demands: In Planet Hulk he was shown to be versed in the mystic practices of the shadow priests, but there wasn't anything to suggest those practices translated to actual magical power. In World War Hulk, he's able to break through enchantments made by Doctor Strange, who was weakened at the time, but still.
Wouldn't Hurt a Child: Broke his oath to the emperor when he refused to kill the emperor's son on his orders. Considering that son grew up to be the Red King, that might not have been the best move, but he stands by it.
Villains
Abomination
Arch-Enemy: He was considered this for quite a long time.
Carl "Crusher" Creel was a professional turned ordinary criminal, until he drank a liquid provided by Loki that gave him the power to copy the properties of anything he touches. Creel's intelligence lags far behind his incredible power, leading to his defeat more than once over the years. Originally a Thor villain, but turned into a semi-regular sparring partner for the Hulk, due to his scale of power and simple nature.
All Your Powers Combined: Creel has demonstrated the ability to combine previously copied abilities.
Epic Flail: Creel's favorite weapon is a ball and chain that gains the properties of whatever he touches.
My Suit Is Also Super: The outfit Creel wore when he got his powers changes properties with his body.
Size Shifter: Creel can copy extra mass if the object he's touching is larger than himself.
Super Power Lottery: He can duplicate virtually any power or attribute whatsoever, including energy, and the more powerful you are, the more powerful he gets.
Super Strength: His strength level depends on what object he has copied the properties of.
Pet the Dog: His personality is virtually identical to that of Zeus, but similarly he had a very well hidden "soft" spot for his favourite son. With that son dead, he doesn't have any nice spots anymore.
Sins of Our Fathers: One of the laws he enforces are to slaughter the entire family of anybody who goes beyond any of his rules in the slightest, regardless if they had nothing to do with it, as it serves as a "more powerful preventative warning".
Super Power Lottery: He is basically a more skilled, powerful, and ruthless version of the Silver Surfer, with a galactic armada to back him up.
Blessed with Suck: Mess. The left half of her body is Abomination-like. She's super strong, super durable, and has a healing factor... only on her left side.
Brother Chuck: Glenn (and Grey) technically has a nephew named Matt Talbot (which means that there is at least one missing brother or sister), who briefly hunted Hulk, but thought better of it.
Genre Savvy: Griffin/Clown. He guessed Stryker's plan exceedingly quickly.
Insane Troll Logic: Mister Gideon blamed the Hulk for the death of his son, Jim Wilson. Jim died of AIDS (which, to be clear, he did not contract from the Hulk).
Revenge Before Reason: For Gideon, Mess, and Prodigy. Grey has his own motives and Griffin just wants someone to be mad at.
Sibling Rivalry: Grey's real reason for joining the team. He is Glenn Talbot's younger brother. Glenn tormented him during his upbringing, so he is not out for revenge, but to prove himself more capable than his brother by beating the Hulk.
A God Am I: He is the World Breaker and Sakaarson. He demands your worship.
Antagonistic Offspring: Like Skaar, he desperately wants to kill their father. Unlike Skaar, he doesn't care how many people become collateral damage in the process.
Originally associated with the X-Men, but similarly to Absorbing Man, he eventually turned into one of Hulk's regular opponents, due to being one of very few regular supervillains that can actually pose any threat to him.
Assimilation Plot: More than once, his goal has been transforming most/all the world's population into gamma beings.
Back from the Dead / Not Quite Dead: He's been killed off more than once, and there's rarely an explanation as to how he's come back. It's even been theorized there's more than one Leader running around from alternate universes.
Big Bad: Frequently, and of the Fall of the Hulks storyline in particular.
Catch Phrase: "So says the Leader" in the 90s cartoon.
Charm Person: Can mind control any non-gamma being just by touching them.
Do Not Call Me Paul: Hates being called Samuel Stearns. This is somewhat justified; after the Hulk, his gamma transformation likely caused the greatest alteration to his personality, to the point where they may well be two different people, like the Hulk and Banner.
Evil Is Petty: It's been pointed out several times that many of his schemes would have worked... if he chose not to preemptively involve the Hulk, who would have in all likelihood, ignored him. But his petty grudge against the not-so-jolly green giant prevents him from leaving the Hulk out of his plans, thus shooting himself in the foot.
Well-Intentioned Extremist: Although in this case the well-intentioned part is likely mostly in his own head.
Would Be Rude to Say "Genocide" / Evilutionary Biologist: He once blew up an inhabited city just to see if the radiation would produce useful minions. He has a history of much more ambitious schemes of the same type, with all of humanity acting as his lab rats.
Madman
The Leader's brother, but so completely unhinged that Leader wants nothing to do with him.
In Name Only: In the 2003 video game Hulk(which served as a sequal to the Ang Lee movie), virtually nothing of his character remained from the comics. He was a Stalker with a Crush to Betty, rather than the Hulk, and his obsession with the Hulk (which was rather mild) boiled down to wanting to prove he was stronger. His shape/size changing powers were also left out.
A corrupt, more powerful version of the Hulk from a possible Bad Future where most of humanity was decimated by nuclear war. He built a city with radiation shielding which he named Dystopia, where he rules over the surviving humans like an Emperor.
Depending on the Writer: Very different assigned origins and motivations, from alien, to angel of mercy, to artificial mutate. One moment she will turn into a giant monster, and the next help a soul to the afterlife. Lamp Shaded in that she has mentioned that she is simply very fickle.
Mercy Kill: Her shtick, usually. Sometimes it's less about people who actively want to die and more about people she feels would be better off dead, hence her battles with the Hulk.
Nice Job Breaking It, Hero: When Hulk destroyed Onslaught's physical form, the entity turned into an incorporeal energy state. Still, all the other heroes of the Marvel Universe combined were helpless before it, whereas Hulk excels at raw power (and not much else), and somehow made it vulnerable to (admittedly contrived) alternative approaches afterwards.
Evil Counterpart: To the Fantastic Four. Oddly, they've never actually fought the Fantastic Four. This was also completely intentional on their part; they got their powers deliberately through the same method as the FF.
Not So Harmless: Sure, they don't have much of a street cred, but Vector can repell the magic of Doctor Strange, hurl planets, blast the Hulk into a walking skeleton, and rip apart reality itself. Also, they think nothing of blowing up thousands as long as they get paid.
If one takes time to examine their powers, they're actually considerably more powerful than the Fantastic Four(they were exposed to considerably more cosmic rays). Unfortunately they aren't nearly as smart as the FF, which is probably the main thing holding them back from being major villains.
Possibly the Hulk's most dangerous "adversary", Onslaught and Galaxy Master included. A billions of years old higher-dimensional energy being, and occasional ruler of her own magical universe, fully capable of beating up cosmic entities or rewriting entire realities to suit her whims, and by far exceeding virtually any known arch devils or pantheon godheads in existence. Basically the most evil and powerful woman in the Marvel Universe. She finds the Hulk extremely attractive as a potential trophy husband, due to the upper limits of his raw power, destructive potential, and easily manipulated nature.
Curb-Stomp Battle: The Hulk only got in a single on-page hit during their last battle, and took days to recover. He has beaten far more powerful opponents on occasion, and only grows stronger from blasting him with dark magic, but needs to be extremely angry to do so.
Demon Lords and Archdevils: But unlike other virtually omnipotent demonic entities Zom isn't very clever, and although apparently more powerful as such than any of them, he cannot use it for a lot of versatile purposes.
Godzilla Threshold: Strange only pulls him out of the bag when he feels the situation has crossed this. The first time was against Umar. The second was against Hulk.
Physical God: When you require a goddamn MULTIVERSAL JUDGE to stop your rampage, you've more than earned this title.
Sealed Evil in a Can: Up to Eleven. It took the combined efforts of Eternity, Dormammu, and assorted other mystical entities to seal him up. When fighting Hulk the second time it stated that it was only due to Doctor Strange restraining its full power that allowed Hulk to win the first battle, and this was a Hulk angry enough to overcome the full multiversal-scale power of The Sentry. (Hulk later stated that he still held back though.)
