* AngstWhatAngst:
** Despite being drugged by a cult and effectively raped by Maggotbone Sr. and the occasional night terrors she experiences, Callie's mom feels no ill will towards either party and is implied to have at least tried to pursue a relationship with Maggotbone before leaving to raise Callie (whom she adores) on her own.
** This was retconned in "Callie's Little Sister" - turns out she was dating FrankSinatra, and Mack (Callie's father) offered to impregnate her in exchange for her soul, and getting him out of his ArrangedMarriage with Twayne's mother, Violet.
* EnsembleDarkhorse:
** Leonard, definitely.
** Doug. Started as just another person at Mark's workplace that [[SingleTear cried]] [[OnceAnEpisode once an episode]]. Then became Mark's assistant and now has an expanded backstory as [[spoiler: a Bolivian assassin trying to start over.]]
* EvilIsSexy:
** Callie Maggotbone. She'll definitely show you her softer side.
** Her sister Lilith counts as well, being arguably ''hotter'' than Callie. Or just the [[RedEyesTakeWarning flaming eyes]].
* FanPreferredCouple: Given the rampant amount of HoYay between them, Randall/Mark is pretty popular in fan-art.
* HilariousInHindsight: The Manbirds have developed a distinct and complex language built around American obscenities after a traveler taught them all how to swear. Funny enough on its own, but couple that with newsreports of wild parrots in Australia incorporating expletives in their calls (having learned them from domesticated parrots) and you have a textbook case of life imitates art.
* HoYay
** Extra Freaky Squicky version with Randall's secret desire to eat Mark. Added [[ILoveTheDead Necro Yay]] angle since Randall is a Zombie.
** And don't forget when Mark is [[{{Genderswap}} turned into Randall's ex-girlfriend]]--the one Randall ''went zombie for.''
--->'''Mark:''' I really wish I had that information ''before'' I turned into a girl.\\
'''Randall:''' Well it might not be a total loss. You could make a long-time fantasy of mine come true.
** Another mark for Randall and Mark: "Your denial's really turning me on. Is that weird to say?"
** Twayne with Leonard's nemesis in "Kill, Mark...Kill!"
** The entire Randall/J9 sequence in "Soulsucker", culminating in Randall rubbing a hand over J9's crotch.
** The HoYay between Randall and Mark is taken UpToEleven in "Mummy Dearest", with their lease agreement becoming an analogy for marriage - to the point that Mark ''proposes'' at the end of the episode, and Randall hangs a pretty heavy LampShade on it.
---> '''Randall:''' Well, I kinda wanted to the guy in this scenario... but '''yes!'''
* MoralEventHorizon: Twayne crossed the line absolutely when he kills his brother to usurp his rank as general, gets worse when he rebels when he was a baby, he killed all his brothers.
** [[spoiler: The whole episode this was revealed in turned out be a giant act, Twayne might not really have siblings.]]
* NightmareFuel:
** Callie's giant demonic form. Not something you want to meet in a dark alley, or even a lit one.
** Callie's demon form must be pretty tame compared to others since we don't even get to ''see the face'' of Lilith's demonic form--who is also about 10 times the size of Callie's.
** Then there's the Larry King horde. BRR...
* OneSceneWonder: Angie, the facegina.
* ParanoiaFuel: Clark Dungaree is watching you. No matter where you are. And he's making a new hit show about it.
* {{Squick}}:
** In "Pilot", a taxi driver of seemingly Jamaican decent complains to Mark about how his sister [[HotSkittyOnWailordAction married a land whale]]. If we are to believe his sister is human, well... do with that what you will. Most of the series will probably embody this trope as well, as it comes from the same people who did Superjail.
** The less mention of Twayne in a man-thong, the better. And those barbell nipple-rings. Ugh.
** To some, that may be FanService, he is fit at least
** Mark getting turned into a hot woman? Kinky. Having said hot woman's body go into a cursed rapid aging? Bad. Having to stop the curse by [[spoiler: having sex with a man? Back to kinky... maybe. But having to have sex with the geriatric-fetish coworker? SQUICK.]]
* TearJerker:
** Albert, the teenaged Manbird Mark raised, singing "Oh Danny Boy" to his dying father... who [[IHaveNoSon rejects him]] immediately after.
** The example below, in TheWoobie.
* TheyWastedAPerfectlyGoodPlot: A common criticism of the show was that it focused too much on the (at times, rather generic)characters and not enough on the interesting and bizarre AlternateUniverse setting. This is even considered one of the reasons the show never really got popular.
* TheWoobie: Doug (Koala Man).
** This has been all-but confirmed in "Wet Hot Demonic Summer" (if not ButtMonkey status). Even after making their escape (led by a panicked Doug who was digging out to avoid being eaten), Randall still wants to eat him... with everyone else just silently approving.
** He gets even more Woobie points when its revealed [[spoiler:that he's an ex-assassin trying to find a new life in America]]. He also lives in a pet shop.