* DarknessInducedAudienceApathy: A minor problem with the first six-issue arc of ''ComicBook/IZombie''. Nothing is resolved, the BigBad is a "good" guy, who can't be hurt, and the main star has no collection to things going on.


* CompleteMonster: Season 1's BigBad, [[TheAggressiveDrugDealer Blaine DeBeers]], was a two-bit drug dealer while alive. As a zombie, he builds his own business empire by zombifying prominent citizens in the city and then charging them massive amounts of money for Blaine to supply them with {{brain|food}}s. Blaine obtains these brains by murder, namely massive amounts of teenage runaways. He proceeds to harvest their brains and has their bodies sold in a restaurant as meat. When two of his henchmen try to branch out and start their own business, [[BadBoss Blaine murders them]], and later murders his occasional lover who informed him of their plans solely because she gave the police a possible lead on him. Not even [[spoiler: Lowell]], who Blaine seems to like, is exempt from his ruthlessness; when [[spoiler: Lowell]] tries to kill Blaine for what Blaine has done, Blaine murders him without even blinking. Ruthless, cruel and utterly immoral, Blaine flat out mocks the idea he has an excuse for his actions, stating his reasons as "Daddy issues. Megalomania. {{Greed}}."
* DudeNotFunny: Liv eats the brain of a rude and racist old man in the season 2 premier, and a lot of people weren't too pleased when she made demeaning comments to Clive and Ravi. Some people especially pointed out that while Ravi might be able to roll with it since he knows why she's acting like that, as far as Clive knows he's working with somebody who's casually racist.
* EarWorm:
** [[https://www.youtube.com/watch?v=E73IQx21DEo Stop! Nananaoo, I'm already dead...]]
** Major's [[spoiler: RoaringRampageOfRevenge]] in "Blaine's World" is set to [[https://www.youtube.com/watch?v=vBfFDTPPlaM "Der Kommissar"]] by After the Fire, and works perfectly.
* EnsembleDarkhorse: Lowell gained quite a lot of popularity despite being only a RomanticFalseLead, even after his death. His actually rather sweet relationship with Liv and their mutual condition helped make them a FanPreferredCouple.
* EvilIsCool: Blaine does make being an utter bastard look fun. Also crosses into EvilIsSexy as he has more than a few fangirls.
* MagnificentBastard: Blaine becomes the sole supplier of brains to the zombies in the city, operating out of an actual butcher shop, using regular (i.e. not undead) delivery boys. His first act is to have sex with a rich older woman, infecting her, and then offer to supply her with brains for $25,000 a month. He's also charming and disarming, convincing Clive that his shop is on the level, when the detective comes to ask about a dead kid. He even offers Clive to show him around the back of the shop, despite having a cut-up body there ([[spoiler:although, had Clive agreed, he would've been killed]]). Despite being a lowly street dealer when he was alive, Blaine shows refinement, admitting he used to be a wine connoisseur before his taste buds atrophied, and even has his cook try to come up with tasty dishes with brains.
* {{Moe}}: Liv herself, largely due to her short size, PerkyGoth-style appearance, and the effects of many of her brains-of-the-week.
* MoralEventHorizon: After first being shown to apparently be willing to leave his old life of drug dealing, once he finds out he can turn ''others'' into zombies and uses this to make a brain-dealing business, Blaine establishes himself as a villain. But what crosses this is when its revealed that his source of brains for his operation is actually troubled teenagers who he kidnaps and kills, rather than his claim of grave digging.
* TheyChangedItNowItSucks: A peeve of some fans of the comic book. Save for the brains and zombie thing. The TV Series barely resembles the comics which was more of a tongue in cheek story that covered a variety of monsters with bits of drama here and there, then an straight faced crime drama featuring just zombies. They don't even use the name of the original character.
* UnintentionallySympathetic: Liv's voiceover at the end of "Virtual Reality Bites" states that the killer should have just "gotten over" his sister committing suicide after a year of horrific cyber-bullying. Needless to say, many fans felt differently. [[note]]This may have been what was left of the {{Jerkass}} hacker's brain talking, as Liv is not generally so callous towards the dead or their families.[[/note]]
* WhatAnIdiot: Despite knowing that she was a medical examiner for the Seattle PD, one of the suspects in "Brother, Can You Spare a Brain?" actually tried to rape Liv. Made even worse due to the fact that he knew her partner was right upstairs. As you can guess not only did he get his ass kicked by both of them he was arrested instantly. Of course, he seemed to think she ''wanted'' to have sex with him (thanks to the effect of the brain-of-the-week) and so he probably didn't think it was rape, which sadly crosses into TruthInTelevision.
* TheWoobie:
** Almost everyone who becomes a zombie. They're stuck with a HorrorHunger for brains that will slowly, and permanently, rot their brain if they don't get a fix until they're Romero-style zombies, CantHaveSexEver with anyone other than a zombie to avoid spreading it, have dulled taste senses so they can't enjoy good foods any more, can't risk getting too excited to avoid an adrenaline rush and go full-on zombie mode, and if they want to avoid the above mentioned Romero-style fate, they only have a few options if they don't want to become a killer: Get a job with access to human bodies (which for many people would be too much Squick to handle), go grave robbing and hope the brains they find haven't decomposed too much (which would be even worse), or hand over small fortunes to Blaine's operation for a fix. And that's without getting into the visions and personality traits they get from the brains' previous owners which can get pretty intense and traumatic. Special mention to Lowell, who's breakdown in "Patriot Brains" sells just how horrible life is for someone stuck as a zombie.
--->'''Lowell:''' (Talking about the brain he just presented Liv) Its Michael Kenny; he was interred yesterday, at Evergreen Memorial.\\
'''Liv:''' You dug up a grave? ...I'm sorry... I'm sure that was awful.\\
'''Lowell:''' It's cake compared to watching the funeral. ...He was a-an English teacher, and all the kids he taught were there, his daughter read his favourite Shakespeare sonnet, and his poor wife was in hell on earth. I-I threw up actually, because, I thought about all the brains I had, and every last one of them, was... we-we eat people. We ''eat'' people.
** Liv in particular. Starting from the traumatic experience the boat party was, which gave her PTSD on top of her zombie-ness, she spent months struggling alone with the problem until Ravi got involved, had to break off from Major at risk of infecting him, her first shot with someone compatible ends with [[spoiler: them being killed when their shared plan to kill Blaine fails, making her blame herself]], the brains she eats often have really negative effects (from making her flirt with a would-be rapist (effects detailed above) to giving her temporary schizophrenia), and the urge to find the person's killer she gets from them leads to her often getting herself and others she cares about in serious danger.
** Major, as a result of his ChronicHeroSyndrome. At first an IronWoobie as a result of Liv breaking things off, Major develops into a full-on Woobie when kids he took care of at a youth centre start going missing, including Jerome (who he cared about a lot), leading to his life to slowly fall apart as he tries to find out what happened. He gets beat up by Blaine's henchmen Julien Dupont when he sees him wearing Jerome's sneakers, and his attempts to prove Julien's involvement leads to him being arrested, fired, losing his new girlfriend, then get attacked and left looking mentally unbalanced to everyone around him, while those who ''do'' know the truth have to let him think he's insane to protect him from what's really happening.