* CompleteMonster: Ultimate Comicbook/RedSkull is [[UpToEleven even WORSE]] than the regular RedSkull. Ultimate Skull is [[spoiler:the son of Captain America]], and therefore has a version of his powers. He's a killing machine, although that doesn't sum up the [[ForTheEvulz sick delight]] he takes in what he does. His list of atrocities includes: killing two hundred people, followed by skinning his own face at the age of seventeen, training terrorists and working with numerous historical monsters, including infamous mass-murderer and cannibal Idi Amin, [[WhoShotJFK shooting Kennedy]], just to send a message, and using the Cosmic Cube to force the members of A.I.M. to eat each other. And then there's his most infamous moment: he gives a woman (later [[TheWasp the Red Wasp]]) a SadisticChoice: kill her husband with a pair of scissors or he'd kill her baby. She did it. The Red Skull then [[WouldHurtAChild chucked the baby]] [[DestinationDefenestration out a window]] and let his three thugs gang-rape her.
* CrowningMomentOfAwesome: Surprise! The Iron Man Six armour! This is after he found out [[spoiler: that Natasha was a spy - he found this out by her killing Jarvis - and that terrorists had invaded. He responded by whacking her with a bottle, getting very, very drunk, and launching, in his regular armor, for the space station. His next appearance is in the Iron Man Six armor, laying waste to the Crimson Dynamo robots.]]
** Hawkeye's escape scene in Grand Theft America where he kills a room full of soldiers by ripping his fingernails out and flicking them at them. Did I mention he was strapped to a table whilst doing this? Followed up by his turning to the security camera which had just seen him doing this, and grinning a SlasherSmile: "Run."
* DarknessInducedAudienceApathy: The first couple of stories averted this, being seen as a good take on pre-existing comic stories. Afterwards, it seems that Jeph Loeb seemed more concerned with just making it DarkerAndEdgier, without any good reason or paying any respect to the canon.
* DontExplainTheJoke: Nick Fury saying that Samuel L. Jackson should play him if there was movie about him is a little ''too'' on the nose, given that Fury's appearance is already ''based'' on Jackson's.
* FridgeLogic: The DNA-specific bullet. [[spoiler: Ultron calls this whole thing a ''crime of passion'', and he apparently only shot Scarlet Witch the moment he saw that she and Pietro were lovers. ''Yet he'd been carrying a bullet coded to her DNA around all this time?'']] Also, said bullets never showing up again.
* HilariousInHindsight: [[Creator/SamuelLJackson Nick Fury]] gives us this little gem: "This nose has been smashed more often than [[Film/IronMan Robert Downey Jr]]."
** Ultimate Hawkeye is a violent sociopath with the ability to turn any thrown object into a deadly weapon, making him an {{Expy}} of ''Comicbook/{{Daredevil}}'' antagonist Bullseye. Years later during ''Dark Reign'', Norman Osborn has several villains take on the identities of the Avengers; guess who Bullseye disguises himself as?
** A minor example, but the introduction for the hardcover collection of the first series happens to be written by JossWhedon.
* MagnificentBastard: Captain America will regularly perform incredible combat strategies that are calculated within seconds, and [[LampshadeHanging stated outright]] that he seems to have "always winning" as an actual power. He will simultaneously sprout callous (from anybody else extremely arrogant sounding) JerkAss sentiments while performing them.
* MoralEventHorizon: [[spoiler: Black Widow]] arranging for the deaths of Hawkeye's family.
** For Hank Pym, see "NeverLiveItDown" and "NightmareFuel".
** For Ultimate Reed Richards, if orchestrating the city consuming Germany was not be enough, then [[spoiler: assassinating the president by blowing up Washington D.C. definitely counts.]]
* NeverLiveItDown: In the mainstream MarvelUniverse, Hank Pym only hit Wasp ''once'' and he [[NotHimself wasn't really himself]] [[FreakOut at the time]]. In this continuity, Hank ''is'' a straight-up wife beater. In fact he goes further- when Wasp tried to get away from him by shrinking down to miniature size, he got even ''more'' furious with her and sent an army of ''ants'' on her- remember, she had shrunk, so imagine how close this came to ''killing'' her.
* NightmareFuel: Okay, the argument between Hank and Janet, as noted under "Never Live It Down", was bad enough on its own, but [[spoiler: ''unleashing a whole ant colony towards a shrunken, naked, stunned, and helpless Wasp?'']] No. That's just SickAndWrong. Seriously. Janet's horrified "[[BigNo HAAAAAAAAAAAAAAANK!]]" isn't either [[{{Narm}} narmy]] nor [[LargeHam hammy]], but completely [[JustifiedTrope justified]]. The equally horrified look on her face, combined with what the experience must have been like (that is, ''[[FridgeHorror from her point of view]]''), is bound to take you off-guard, regardless of what your age is.
** The Red Skull is the poster boy for this series.
** Everything about Petra Laskov's backstory.
* JerkassWoobie: Hulk, Quicksilver
** Red Wasp is a former terrorist, who has some truly horrific baggage, and it's all but outright stated she's being forced into performing wet-work for the U.S. government when she first appears.
* VillainDecay: The Red Skull.
* VillainSue: [[spoiler:Gregory Stark]] who emerges in ''New Ultimates vs. Ultimate Avengers'' as the BigBad, has tech supposedly far superior than any of the heroes (many of which are with ''Hulk powers'', is positioned as TheChessmaster better than even Nick Fury, and essentially wins [[spoiler:despite dying]] while the heroes talk about how better things are because he did.
* StrawmanPolitical: From all sides of the bale.
* TheyChangedItNowItSucks: The ''All-New Ultimates'' take on Jessica Drew, from the costume to the new alias. A lot of people aren't happy with the changes, which is even easier to notice since she was a big EnsembleDarkHorse before the series started.
* UnfortunateImplications: Red Wasp's highly sexualised outfit, given that she's a victim of gang rape.