In MegaTokyo, Piro has been assigned an agent named Seraphim from the "Conscience Enforcement Authority," who effectively fills the role of the good angel. However, she has a non-stereotypical personality, often being sarcastic and frustrated about lack of funding. An obnoxious male character from her past, Asmodeus, shows up to aggravate her and fill the role of the bad angel, not so much tempting Piro toward evil as discouraging character development. Meanwhile, a hamster named Boo ("all that the temp office had") tries to assist Seraphim as Largo's conscience, and he tries hard, but being unable to speak makes a difficult task nearly impossible.
Later it turns out that Seraphim is actually supposed to advise her clients on all sides of their moral conflicts, while Asmodeus claims to be morally impartial, stating "fun is fun, there is no good or bad".
Arguably the entire point, or at least a central theme, of Comedity, where Garth's various psychological elements are characters in their own right and make up a council in his head. Though they aren't just advisors... The personality sprites actually constitute Garth's mind; they're frequently shown piloting his body Mobile-Suit Human style.
College Roomies from Hell!!! expands on this trope by having the angels and devils be various sizes depending on how much the character listens to one or the other: e.g., nice guy Dave has a life-sized angel, while the Anti-Hero Mike has one barely the size of his ear. There's also April's Imaginary Floating Wiser Self, who seems to be something else entirely but serves as her conscience in a pinch.
One sequence has Susan question whether or not to go to a gender-swapping party with the aid of her Curiosity (a spotted catgirl) and her Logic (a Vulcan). To her horror, Curiosity comes up with an argument that wins Logic over, so Susan has no real choice in the matter.
Later, her Nature (blonde-haired self) and Nurture (blue-haired self) argue over whether or not to hug Tedd for standing up for her. Makes sense once you know her backstory.
Shows up in this episode of VG Cats where crazy old homeless guy Dr. Hobo has, instead of a Bad Angel and a Good Angel, a Hobo Angel who encourages him to do bad stuff, and an Inner Clown who rants incoherently. ("Woof! I'm a cow!")
Unicornographylampshades this in one strip by having one character tell both the angel and the demon of the other character "you know, since this is the astral plane, i can heard both of you"
Jennie Breeden's Author Avatar in The Devil's Panties often features her Good Angel and Bad Angel, though occasionally the two concur. The Good Angel is dressed traditionally, while the Bad Angel wears a black and red corset, a micromini skirt with platform boots, horns and little bat wings. Both otherwise look like Jennie herself (or like her Avatar, which other strips show as no longer resembling the real artist). Later, they're joined by a Princess representing Jennie's latent girlie side.
Penny and Aggie is fond of this one. Aggie's shoulder angel scolds her for thinking of pursuing Karen's boyfriend Marshal — until Marshal tells Aggie that Karen went from a frumpy nerd to an ultra-popular sex goddess purely on her own initiative (when in fact Aggie assisted in the transformation). Then the angel says, "I got nothin'. Go get him." Aggie has no corresponding shoulder devil "You don't get one! You ARE one! Shaaaaaame!"
Karen herself has a shoulder angel — who mostly seems to spend her time bound and gagged as the prisoner of Karen's two shoulder demons. See here. At another time, though... See here.
Frank from Coga Suro has a classic "shoulder angel" and "shoulder devil". These are unusual in a few ways: his "shoulder devil" has been known to leave Frank and influence others, and his Good Angel has appeared in full human size at least once.
When Frank finally activates his Artemis, it has two different colour schemes, echoing the opposing colour schemes of his Good Angel and Bad Angel.
An Ugly Hill comic has Hastings' shoulder angel and devil arguing with one another about whether or not Hastings should cheat on his wife with a woman he met in a bar. Hastings reveals himself to be drunk, and the shoulder devil exclaims "He's wasted! I win by default!"
The trope is occasionally subverted when the angel and devil are in agreement.
Also when it is discovered that Tabitha has no good angel.
Its spinoff Friendly Hostility likes to use this one occasionally. There is one sequence where a good angel is attracted to the classic hooker dressed bad angel. She says they can't be together because they are on opposite sides so he gets a transfer to the bad side just to learn that she's transferred to the good side.
In Jayden And Crusader, the character Kat has a mental illness which manifests as a tiny angel and tiny devil when she does not take a proper course of medication, as demonstrated here They do not seem to provide any advice, only to chatter inanely.
In It's Walky!, when Joyce is finally about to lose her virginity, she has visions of her slutty alternate "evil" self and the hyper-puritanical "good" person she used to be. The slutty version eggs her on, the puritan castigates her. Their bickering is then interrupted by a vision of Joyce as the more balanced, mature individual that she is now, who tells them both to shut up as she wants to watch.
And Shine Heaven Now, with both Integra and Timothy. Played with in that Integra's angel and devil appear in full-size versions during a storyline taking place in Hell.
And now Enrico has Bad Angel...and Delirium, who's filling in for Enrico's good angel while he's lost in her domain. This is taking place while Enrico goes insane with power and starts to slaughter innocent Protestants.
In The Wotch, Robin does not have an angel and devil, but a Jedi and a Sith (while his best friend Jason has two Siths who only argue over whether Vader or Maul is better).
At a critical point in Volume Four of Sam and Fuzzy, Gertrude gets caught in an argument between her inner child (playing the role of bad angel) and her... Conscience Cat. When Gertrude asks why her good side is represented by a cat, it simply replies that "cats are neat!"
Conscience Cat went on to become a semi-regular that began haunting Devahi. He's rather ineffectual at his job.
In thw A Complete Waste Of Time in-comic MMORPG META, you have devas who pretty much serve this purpose. The positive (Philanian) ones spell their "f"s as "ph"s, and the negative (Mizanian) ones substitute "z" for "s", regardless of how the player normally speaks.
PHD featured an early strip where Granola Girl Tajel decides to apply for a job that will let her exploit her Humanities degree to sell software. Despite this, the application process is essentially an Aborted Arc.
In thisWulffmorgenthaler strip, with the caption: "Sign you're having a serious drinking problem", a man's shoulder devil point to a glass of beer, saying "Drink another beer, you know you want to...", promptly followed by the shoulder angel chiming in with "Great idea! Drink! Drink! Drink!".
Absurd Notionspresents "the dueling consciences of the sysadmin: 'Lazy' and 'Bastard'."
The Japanese Beetle has a villain called The Enabler, whose entire shtick is that he's a Professional Killer using Incredible Shrinking Man and Telepathy powers to pose as someone's Bad Angel and drive them into self-destruction. When he attempts this on the titular hero, Ken's first response is to ask, "Where's the guy for my other shoulder?" He finally realizes something is up when his pre-teen fan Katie asks "Who's that mean little man on your shoulder?"
ThisLit Brick strip gives Dr. Faustus three shoulder consciences... the third being Mr. T.
Cest La Vie. In which Donna's demon on the shoulder takes the form of her cynical and caustic best friend, Mona, berating an angel who is a small helpless version of Donna.
Keti of Footloose has a least 4 imaginary advisor's, two of which represent her non human genetics and two who take the form of two of her friends. They are possibly a product of a mental condition she inherited from her mother.
Playing it straightest is this strip, which references the fact that Dungeons & Dragons (which the comic parodies) has an alignment system based on both good/evil and law/chaos, so in addition to a traditional set of good angel and bad angel, Elan also has a lawful angel and a chaotic angel (who resemble a Modron and a Slaad, the outsiders for those alignments), neither of which are much help — the lawful one speaks in binary and the chaotic one is a Talkative Loon.
The good and evil angels also, unsurprisingly, look like a Solar and a Pit Fiend respectively, examples of an angel and a devil in the game.
When Haley the rogue loses the ability to speak, she first hallucinates a version of herself that's dark and sarcastic and cynical — her moody teenage self, acting as de facto Bad Angel. Then her optimism shows up to act as Good Angel. Then, as the stress causes her psyche to fracture further, she has a complete ensemble of her various personality traits, all showing up at once and arguing over each other. It's not exactly helpful. Though the "Bad Angel" is actually quite sensible.
Here's another bad-angel variant from Vicious Lies.
In Leftover Soup, Jamie alludes to it when presented with two opposite opinions on what to do with his board game designs (both options are considered better than the status quo, "nothing").
In Jennifer Babcock's C'est la Vie, the ditzy-but-sweet Valley Girl Donna Fitzpatrick has a smaller version of herself as Angel, as per trope. But the demon takes the form of a smaller, sarkier, version of her louche and cynical best friend, Mona Montrois.
Parodied extensively in Sluggy Freelance. Different characters have different shoulder angels and devils, reflecting their personalities and usually not played very straight. Two separate strips of the comic are devoted to describing the events at a bar where the good and bad angels of the characters hang out. The shoulder angels are also drawn differently for each character; Riff's and Zoë's have normal human proportions, whereas Torg's, Gwynn's and Kiki's more childish angels are big-headed chibis. The good angels tend to wear robes and the devils more revealing clothes.
Riff has such a low-key personality that instead of a good angel and a bad angel, he has an "I dunno" angel and an "I dunno" devil. Just once, when Riff is confronted with a truly difficult moral dilemma, his angels not only talk but switch shoulders.
Torg's bad angel is way too zealous to be persuasive, and instead of coaxing Torg towards temptation, he usually just yells at him to kill everybody.
Zoë's angel is insecure and dressed in a heavy robe, whereas her devil is relaxed, confident and kind of Stripperific, seeming more irresponsible than evil.
Kiki's (she's a ferret) angels are pretty standard, but she hides them behind the couch rather than deal with what they say. There, they get eaten by the perpetually starving Zombie-Head-on-a-Stick; since she absorbs what she eats (she's currently very stupid because she hasn't been getting brains to eat, for example), this causes her to spout "good and evil" little zombie heads above her head that promptly start trying to eat her.
A peculiar example is found in the "Meanwhile in Hell" guest strips by Ian McDonald, where the trope is once played straight if humorously — except that the shoulder angel and devil belong to Satan. So we end up with a generically good Satan-angel who is telling Satan to do what's right. This isn't given any further lampshading or development, so it's just weird.
Here, the carib Mousse from the "Oceans Unmoving" arcs has a shoulder devil that suggests he sabotage the life-skiff two of the other caribs will use to get to help so he can be alone with the only female. His "angel" simply moos. But then again, the story was being told second-hand...
Parodied in 8-Bit Theater, where Heroic Comedic Sociopath Black Mage has a Bad Angel (Evil Side) and a Worse Angel (Atrociously Evil Side) where what little difference they have is severely blurred. When he is at a point where his teammate is in danger, instead of debating whether to help him or not, they debate between letting him die or letting him die and killing everyone. He compromises by letting him die and dancing on his corpse. He also has an Inner Scrutiny.
Moderately Evil Side: He's supposed to double check what you're thinking before you say anything so you don't look like a jackass or moron. You usually don't pay any attention to him.
Subverted when John's Bad Angel is none other than Darth Vader, who encourages him to sleep with the hot single mom of one of his students. When John asks where his Good Angel is some time later, his question is answered by Chewbacca appearing on the other shoulder. At one point Jar-Jar Binks appears, apparently as a Good Angel, but naturally John has no problem with Vader killing him.
Later, the aforementioned single mom has her own Angel, in the form of Jeannie, though whether she's good or bad is unclear (she encourages the woman to sleep with John, and sleeps with Bad Angel Vader as well).
Ménage à 3 plays with this trope, usually more for comic than heavily subversive effect:
At one point, Zii's shoulder devil has her shoulder angel Bound and Gagged. This later turns into an all-out subversion when the devil and angel work together. Later again, her shoulder figures are simply a pair of naked women (strip #846, February 04, 2014, NSFW); she's not getting any moral or immoral ideas from anywhere, she's just being driven to the point of insanity by temptation.
When DiDi's devil shows up, it's actually surprised: "Wow! I don't think you called for me since the third grade... HOLY CRAP! Check out therack on me!" This is quickly followed by her angel showing up — except that DiDi is such a nice person (or at least thinks of herself that way), her "little shoulder angel" is more than twice as tall as the real DiDi. Later again, her angel — operating at more normal size — actually manages to smack her hard enough to sting for having bad thoughts.
Jamie Kingston's shoulder angels in Kismetropolis occasionally agree with each other.
Played with in thisCasey and Andy strip: Andy wants to talk with a hot girl but his good angel disapproves, and, because Andy is going out with Satan, who has control over all "shoulder demons", she appears instead of Andy's bad angel and threatens him.
Subverted in Otaku No Yen in this strip. Shortly after appearing, the angel stops trying, since he also agrees with the devil, but had to make an attempt to do his job first. Later on, the devil (having tied up the angel elsewhere) reappears alone and argues that the absence of the angel indicates that there is nothing wrong with what is currently going on.
"W-where's the angel? The one that tells me to be good?" "That's in cartoons, you ditz. Nope, God only had enough miracle sauce to make one of us per person. And it picked the bad side because... spite, mostly." "So who's supposed to tell me what the right thing to do is?" "If you can't figure that out without an angel, then you kind of suck."
Schlock Mercenary has some fun with this, starting with this comic, in which Tagon mistakes his good angel for a giant talking bug and shoots him. The next two cartoons in the series revolve around the fact that Tagon knows he's not supposed to take advice from the bad one, and the two angels' increasingly violent attempts to convince or fool him. Or just screw with his head.
Narbonic took this trope to its extreme: characters are pestered by little winged personifications of their good sides, bad sides, social lives, inner children... the list goes on. The gag is more prevalent in earlier comics, but it can pop up once in a while in later ones.
Except for Mell, who only has one angel. Sitting on her shoulder, constantly whispering "Kill. Kill. Kill."
Also note that Helen's good angel once urged her to nuke her school.
One of EATATAU!!!'srunning gags is the bad angel messily gunning down the good angel (usually a result of Sha'shiva getting horny). Flipped around when Sha'shiva throws herself at Kor'la and the latter's own good angel messily guns down the bad angel (since they're in the cockpit of a battlesuit at the time; It Makes Sense in Context).
Seen occasionally in Girls with Slingshots : Thea's here, Hazel's here and Clarice's here. Hazel's good one has been led astray by the company she keeps, and Clarice's seems to be ganging up on her with the evil one.
Lampooned and Lampshaded in Sailor Sun when Bay's bad angel is nearly late because she has to do double duty as Honey's conscience. She apparently plays both roles straight after taking a moment to get into character.
Parodied in Batman and the Bat-Titans where Batman hallucinates a Tiny Batman (the shoulder devil) telling him to whoop the Titans' asses, a Tiny Beast Boy (the shoulder angel) telling him to ask for redemption instead, and a taco (his food conscience) telling him he's hungry for tacos and burritos. Tiny Beast Boy questions if a Food Conscience is really a thing.