- Ambassador Donnel Udina has an obnoxiously aristocratic voice, gets overly angry when talking to the Council, sidelines you when you're inconvenient, sells you out just to maintain public relations, and acts as an appeaser for the Citadel Council if he's selected to be the human representative. Bioware did seem to be somewhat aware of just how truly obnoxious he was, and included the option of having Anderson punch him in the face, which, needless to say, was picked far more often than the other choice. Mass Effect 3 manages to do some degree of rescuing, as he becomes significantly more sympathetic even when he's attempting a Cerberus coup.
- Jacob Taylor was mostly ignored by players in Mass Effect 2, being considered a bland Master of None with a shallow and cheesy romance route who refers to Shepard as "the prize". The Narm Charm of his romance route is actually the entire foundation of his fandom. A common complaint is that the player isn't allowed to really know him: all efforts to understand his Hidden Depths are met with brush-offs or even outright hostility. Come Mass Effect 3, he's the only romanceable character in the series who actually cheats on Shepard. Knocking up another woman and not even trying to get in contact with Shepard in the six months she was incarcerated. This did not impress the fans, to say the least.
- He is basically a bad copy of The Everyman character of Kaidan (who is actually better written but hated for only gameplay reasons) from the first game. At least Kaidan's romance with Fem!Shepard was much more likable and shares a lot of Ho Yay with Male!Shepard. Worse, while Kaidan was rescued in the third game through Take a Level in Badass, balancing the gameplay mechanics, and being fleshed out in his relationship with other characters and having a very well written romance, Jacob just got less likable for cheating on Shepard and being completely pointless, even in his cameo appearance.
- "Ah yes, '"hatred"'. Emotion felt by sapient lifeforms towards annoying turian councillors, allegedly causing fan rage. We have dismissed that claim. However, he's the first of the council to come around in ME3.
- Diana Allers of Mass Effect 3 seems to be getting quite a bit of hate for a variety of reasons. Her inclusion being considered blatant pandering to IGN (she's modeled after and voiced by one of their writers, Jessica Chobot), her Romance Sidequest (considered by many to be the most shallow in the series, and which does not even award the achievement), her bland voice acting, and feelings by many that they dedicated far more time to her, an extremely minor character, than other aspects of the game (many note more effort was put into sculpting her high-polycount ass than into Tali's note face). The fact that she replaced Emily Wong, a pre-established and well-liked character, did not ease the anger.
- Morinth isn't too well liked as well, due to being a very vicious villain with little plot relevance whose only real purpose is for Samara to explain how Ardat-Yakshi work to you and to give the player nightmares. Her Freudian Excuse for being a merciless killer was seen as rather weak as her sisters are also Ardat-Yakshi yet none of them chose to become mass-murders. Also, Samara easily disproves her "I am the future of the asari!" mantra by pointing out that an Ardat-Yakshi is sterile. It didn't help that Morinth never experienced any positive character arcs that would've made her more heroic (unlike the other Token Evil Teammates Zaeed, Jack, and Javik). Her status as a Scrappy is one of the few things fans on /v/ agrees on, and those who take her usually only do it to unlock Dominate as a class power and replay the mission to keep Samara on the squad.
- Judging from Bioware forum, it seems that the third game has got Ashley Williams out of her Base-Breaking Character status but not in a good way.
- Before the third game, it seems that the Virmire choice that forced the player to choose between her and Kaidan seems to be in her favor as most players declare her to be both a deeper character and better for gameplay reasons. However, her appearance in Mass Effect 3 has caused a quite number of players, some of them her fans or people who disliked both characters, to either choose Kaidan in their save files, kill her off in the stand off with Udina, ship her off to get war assets or ignore her all together.
- Reasons for this ranged from her Unnecessary Makeover (her loose hair was deemed as both impractical and a bad attempt to copy Miranda); unsympathetic characterization (her Fantastic Racism underwent Flanderization, while her Hidden Depths with a love of poetry was ignored, and the theological implications of the Lazarus Project was cut from the game), and a lack of interaction with the other party members.
- Making things even worse for Ashley is that their status as Mutually Exclusive Party Members makes it inevitable that she will be compared to Kaidan, who was Rescued from the Scrappy Heap for many fans. One sticking point is that many fans felt Kaidan did a better job of articulating why he was having a hard time trusting Shepard. One particular moment that many call attention to is the climax of the Citadel coup. Where Ashley again says that it's hard to trust Shepard due to their past relationship with Cerberus, Kaidan instead raises the much more relevant point that Shepard is pointing a gun at a councilor. Likewise, finding Ashley drunk in the lounge, while funny, doesn't build her character like Kaidan's serious reflection on his previous behavior. Gameplay balance was also hammered out after the first game (and a bug making Ashley's unique abilities not work properly) made many decide Kaidan was a better party member to pick. Even the Citadel DLC scenes with Ashley was criticized for being a ripoff of the Mos Eisley cantina scene rather than adding to her character.
- Kai Leng is a pretty Flat Character with a design that would look more at home in Mortal Kombat than Mass Effect, but what really earns him Scrappy status is that until the last time the player fights him, every encounter with him is a Heads I Win, Tails You Lose situation in which no matter how handily the player beats him, Shepard is struck with Cutscene Incompetence and loses to him anyway. The fact that Leng then sends Shepard taunting emails adds insult to injury, coming across more like the act of an Internet troll than a serious villain.
- The kid seen at the beginning of Mass Effect 3. Partially because of his poor voice acting, partially because he is seen as a cheap Expy of Newt and his death is a blatant attempt to arouse sympathy, and partially because his model is purposefully used for the Catalyst.
- Which brings us to The Catalyst. It's supposed to be sympathetic for wanting to stop organic life from being taken over by synthetics, but its chosen method (periodically wiping out organic life so they won't develop evil synthetics) is utterly nonsensical and makes little sense within the context of the series, not to mention making the much-vaunted Reapers look like idiots. On top of that, it's also responsible for the series's Gainax Ending, presenting Shepard with three arbitrary choices, none of which seem to actually solve anything and all of which end in the apparent destruction of civilization, when most players just wanted to kill the thing and be done with it. Leviathan somewhat acknowledges this and the criticisms of the Catalyst's Insane Troll Logic. Its existence is foreshadowed by the Leviathan, a member of the species whom the Reapers were modelled after, who explains that the Reapers are being controlled by a fundamentally broken AI, trying its best to work on faulty programming.
The Scrappy / Mass Effect
It's obvious that the players have had enough of these despised character's disingenuous assertions.