"Guilty! Guilty! My evil self is at that door, and I have no power to stop it!"When someone's inner darkness doesn't quite take over someone, but it does "escape" their body and rampage. Fighting someone else's Enemy Without is tricky, as often it will either kill the person projecting it if it dies, or it will just resurrect itself until the actual darkness in the hero's heart is dealt with by the hero themselves. Often symbolically represents repression, and the hero's refusal to acknowledge the darkness within or some other aspect of themselves. Victory is achieved half the time via "reintegrating" with it. The other half of of the time it can be seen as representing some inner demon, and thus, it must be abandoned, purged, or confronted and conquered. Sometimes this battle will occur inside someone's own head in a dreamscape, making it both the Enemy Within and the Enemy Without at the same time. It may require saying "I'm Not Afraid of You!" to weaken it enough to beat. This trope is very similar to The Heartless, Made of Evil, and Literal Split Personality. It is distinguished from The Heartless by having some personal connection to the person/people it was created from, from Made Of Evil because the Enemy may be flesh and bone, and from Literal Split Personality by leaving behind a clearly-defined original character. See also: Evil Twin, Enemy Within, Ghost in the Machine, Self-Constructed Being, Shadow Archetype, Indulgent Fantasy Segue and Tulpa. The "evil" is usually part of a character's Soul Anatomy.
— Dr. Morbius, Forbidden Planet
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Anime & Manga
- In Gunnm, Kaos's backstory is that Den was originally Kaos's evil impulses that occasionally surfaced to do evil things, and Kaos's father, Desty Nova, found a way to pull Den out and give him a body of his own, leaving Kaos free of Den's influence.
- In Magic Knight Rayearth, Nova was the suppression of Hikaru's hatred for herself, given physical form by the magic of Cephiro.
- Madlax was a benign version of this; in this case, she was the sublimated desire of a young girl to kill her Brainwashed and Crazy father in self-defense. Uniquely, she grew up on her own without too many defects, as a relatively friendly mercenary in a war-torn land.
- In Animerica, Kiyone's Enemy Within becomes this in Season 3, having "escaped" his body when he felt remorse over Yumi's death but finds his way back when his good side was just broken out of his Driven to Suicide state and accepted Ron's words, angrily refusing to let him perform a Heel–Face Turn. He attempts to give him another Breaking Speech, but is promptly told to shut up by his good side, telling him that he no longer has a purpose to be evil and wants to change for the better. This, followed by the power that the "true" Golem unlocks within him, triggers one of the best Crowning Momentof Awesome in the series.
- In Bleach:
- Ichigo has to battle his mirror self inside a dreamscape first as part of training from Zangetsu and later because the mirror has taken over Zangetsu and is trying to take over Ichigo too. In this case, it is resolved via reintegration by conquering.
- The mirror self is Ichigo's "inner Hollow" who takes over Ichigo's body (gradually turning more and more hollow like) during their showdown and the Visored have to fight him to keep him from transforming completely and killing everyone in Karakura Town.
- It's mentioned later on that forcing a Shingami's Zanpakutou to manifest, then submit to you, is a required technique for accessing the second release, Bankai.
- All of this leads up to The Reveal that the "inner Hollow" is the true Zangetsu, and that it was never really his enemy.
- Dragon Ball:
- Piccolo begins his existence as Kami's cast-off evil side. The original "King Piccolo" in Dragon Ball is evil, but his son / reincarnation, "Piccolo Jr", gets a lot of Character Development. Firstly, he's less interested in harming innocent people For the Evulz than he is in killing The Hero for revenge. Then he finds himself reluctantly fighting alongside the good guys when a greater evil shows up. Then he kidnaps his rival's son and puts him through Training from Hell, but gradually comes to care for him to the point of Taking the Bullet. As the Sorting Algorithm of Evil keeps churning out worse and worse villains, Piccolo Jr comes across as more and more heroic, and eventually he and Kami agree to a Split-Personality Merge for a powerup.
- Played straight with Majin Buu. His evil side comes out, fights him, then turns him into chocolate and eats him. Later reversed, when Buu's good side gets loose, and fights the evil side (who is now even worse than before). By the end of Dragon Ball Z Buu has two good sides; himself and the human Uub (a purified reincarnation of the evil one).
- This is part of the plot of Seven of Seven. The main character, Nana, is an ordinary schoolgirl who finds herself with six alter egos representing different aspects of her personality (hot-headed Nanappe, cheerful Nanacchi, sensitive crybaby Nanarin, lazy and laid-back Nanakko, intellectual Nanasama, and eccentric Nanapon) after messing with one of her inventor uncle's experiments.
- An episode of Sgt. Frog is a direct spoof of Seven of Seven: Giroro acquires a sextet of alter-egos representing parts of his personality after an encounter with one of Kululu's inventions. The gag is, only one is obviously part of him (his "inner soldier"), and the others much less so, like his inner coward, his romantic side, and his feminine and poetic sides, the last two female!
- This happens twice and in two variations in the anime version of Ranma ˝. The first time Ranma was split into his female (and evil) self and his male (and normal) self. The second time he found a way to physically fight his shadow, and inevitably, the shadow turned out to be slightly evil because it lacked a superego.
- In the manga this trope is not used (More precisely, in an episode there is a double of a female Ranma; but she is not a double but a ghost that, being sealed in a mirror, manifests herself looking as a female Ranma).
- Magical Girl Lyrical Nanoha A's has the corrupted self-defense program that separated from the Book of Darkness once Hayate became its master. It was even explicitly called the "darkness of the Book of Darkness" by Hayate.
- In the animated adaptation of Samurai Deeper Kyo, this was Onime no Kyo's revised origin; he was essentially the fighting instinct within the soul of Mibu Kyoshiro, distilled into a separate and powerful body the Mibu created. Onime no Kyo then became an actual person, as opposed to merely the nickname of the Blood Knight Mibu Kyoshiro.
- This situation, almost word for word was briefly dealt with in Naruto very recently wherein...at a waterfall...he had to get over his Dark Self, which for some, surprisingly was more of a reintegration instead of a total beatdown into submission , however - this was only a lead into tackling something far worse... battling the full rage of the Kyuubi.
- In Tekkonkinkreet, this is one interpretation of the Minotaur. Specifically, the Minotaur symbolizes Black's inner darkness.
- Inverted in The '90s anime version of Sailor Moon with Sailor Galaxia. Chibi-Chibi is the physical manifestation of Galaxia's Star Seed known by others as "The Light of Hope".
- Oto x Maho plays this one straight with Kanata, only to subvert a Mirror Match
- Subverted in A Certain Scientific Railgun. Kiyama created the Level Upper program that links espers together into a psychic network, making them capable of increasing their powers by drawing upon the collective's computational capability but at the cost of eventually falling into a coma. Kiyama, being the center on the network, can draw upon it to simulate their abilities herself... but when she goes overboard with her determinator tendencies, all the anger, disappointment and self-hate of the students who used Level Upper to realize their dreams peaks and erupts from her body into the AIM Burst, a fetus-like amorphous creature that wrests control of the Level Upper network away from her then goes on a mindless rampage. Oh, and not only attacking the AIM Burst just makes it grow bigger, it's also Mind Raping everyone connected into the Level Upper network while active.
- From A Certain Magical Index we have Misaka WORST, a second generation clone of Mikoto who is able to tap into the negative emotions that occur within the Sister clones via the Misaka Network. This can influence her behavior though, such as when Last Order has a fit of jealousy so does Misaka WORST.
- In King of Thorn we have Alice, who (as a result of abuse from her family) developed an alternate personality called Laloo to take the abuse for her. When Alice became infected with Medusa, it manifested from her back in the form of Laloo. How did Alice respond? By locking him in a room and burning the house down.
- Final episode of Black★Rock Shooter has Mato taking the mantle of Black★Rock Shooter and fighting Insane Black★Rock Shooter in a Battle in the Center of the Mind.
- A variation occurs in One Piece. Gekko Moriah's Shadow Shadow fruit allows him to steal the shadows of living humans and place them into corpses. This creates zombies with the personality and fighting style of the shadow and the physical strength of the corpse. This results in zombie versions of Luffy, Zoro, Sanji, and Brook. However, the actual bodies are very different from the originals, especially with Sanji (a penguin with a dog's face) and Luffy (Oars, a demonic-looking giant). Also, the zombies are really only evil because they are under Moriah's control. Only Brook and Luffy actually encounter their own zombies.
- Hilariously subverted in a Slayers OVA where Lina and Naga face a Magic Mirror which was built to create these for use against powerful demons. The problem is that it works too well, since the opposites of a truly violent being is a completely harmless one. Given that our heroes are Lina Inverse and Naga the Serpent, their respective doubles don't come out as planned.
- Ghost in the Shell: Stand Alone Complex. In "Solid State Society" Section 9 is worried that The Puppeteer they're chasing is actually Motoko, who's retired from Section 9. When Motoko tracks down the Puppeteer and asks What the Hell Are You? because the Big Bad appears to share her amoral determination and cyber skills, she's shocked to find it's a cyber-personality of herself evolved from her subconscious interacting with the Net.
- Professor X has attacked the X-Men via this method on a few occasions; once in the 90s cartoon, and several times in the comics, most notably as a fusion of his and Magneto's darkness, Onslaught.
- Marvel Universe character The Sentry's arch-nemesis, The Void, is his own personal Enemy Without. It's implied that the incident which caused The Sentry to be erased from the minds of the Marvel Universe's populace for about 30 years was a failed attempt at re-integration.
- In the UK's Sonic the Comic comic series (not the same as the Archie one), Sonic lost control when he turned into Super Sonic, becoming interested only in causing as much destruction as he could. Eventually, Super was split from Sonic, becoming a recurring antagonist in his own right, and later a pacifistic protagonist who knew nothing of his past or name and fearing having to use his powers to help people because of his Superpowered Evil Side.
- Shade, the Changing Man's Enemy Within, Hades, thanks to the power of madness, became an Enemy Without and an Ensemble Dark Horse in the same story arc. He also seemed to become less threatening and more helpful, so perhaps it's for the best that he vanished the scene before Spikeification set in.
- In an issue of the 2001 revamp of Doom Patrol, every member of the team is subjected to their own personal Hell. Deadpan Snarker Flash Forward, or Negative Man, is faced with eternity alone with nobody but another one of himself for company.
- In the Mirage Teenage Mutant Ninja Turtles comics, Casey's darker instincts, which had been personified in his mind into a darker, spikier version of himself, came to life when they took over the body of a shape-shifting comedian. Fighting ensued.
- Inverted in Calvin and Hobbes where bratty Calvin creates a clone of his good side. Interestingly played with; the good duplicate vanishes in a Puff of Logic when he has an evil thought, following prolonged exposure to the original Calvin.
- Adam Warlock originally had to deal with the Magus, his evil future self. Later on, as part of The Infinity Gauntlet storyline, he expelled both evil and good from himself to become a being of pure logic. The evil took the form of the Magus, and it was even implied that somehow this was the original Magus, using the evil expulsion as a way to resurrect himself. Once he was dealt with again, Warlock then had to deal with his good side, the Goddess, who had gone crazy and turned Knight Templar.
- Scott Pilgrim has this with Nega-Scott. A mysterious shadowy version of Scott, he is usually seen with a smirk and only seen by Scott (though during the finale, Kim Pine may have seen him.). Nega-Scott represents the repressed memories and mistakes in Scott's life, mainly in his romantic endeavors. It's also why Scott's attempts at defeating Nega-Scott never went anywhere.
- The Spider-Man: India mini-series, in which the characters get their powers from magic rather than lab accidents, ends with the Goblin attempting to mystically provoke a Face–Heel Turn in Spidey. The process draws on his memories of being bullied, encouraging him to use his powers to take revenge. The 'darkness' eating away at Spidey during his temptation appears as an analogue of the Venom symbiote...which survives even after Goblin is defeated.
- Happened to The Creeper once, where he kept spawning increasingly chaotic and animalistic copies of himself. It was all pretty squicky, actually.
- In Demon Spawn Pre-Crisis Supergirl fought Nightflame, a sword-wielding witch who was a manifestation of her dark side -specifically her death wish- who left Supergirl's mind and entered the physical world to fight her and capture her.
- In the Post-Crisis Supergirl's solo book Lex Luthor once exposed Supergirl to black kryptonite. It's not clear whether he knew what exactly it would do to her, but he hoped it would be bad. Well, turns out the stuff does this, and Kara had an evil doppelganger for a while. "Dark Supergirl" later resurfaced as an Enemy Within.
- Supergirl: Cosmic Adventures in the 8th Grade: A bizarre accident creates Belinda, Linda's evil duplicate who feels compelled to make Linda suffer.
- In Superman story Kryptonite Nevermore the titular hero faces up to the Sandman Superman, a being from another dimension charged with Superman's mental and physical vibrations that takes on Superman's form.
Sandman: I am a being woven from your mind — your heart — your soul! Can you not see—? I am you! And I fear that we may not both... survive!
- Green Lantern: Black Lantern Firestorm becomes one in Brightest Day. During the initial Blackest Night, the Ronnie Raymond Firestorm's body rises, and a Faux Affably Evil Totally Radical personality is born, possessing all Ronnie's memories. After Ronnie is brought back from the dead by the White Lantern, Black Lantern Firestorm remains as an Enemy Within. Soon afterwards, it gets out of the Firestorm Matrix, becomes its own entity and renames itself Deathstorm.
- X-Factor: Jamie Madrox's duplicates have minds of their own, and usually embody a specific aspect of his personality. If that aspect happens to be, say, his anger or self-loathing, it might just try to kill him on the spot.
- Les Légendaires has Elysio, a mysterious young amnesiac trying to find out who he used to be. To his horror, he eventually finds out he used to be Darkhell, the protagonists' Arch-Enemy and a cruel Evil Sorcerer who was The Dreaded in all his world. Hoping to prove everyone there is a mistake, he agrees to consummate a cure to his amnesia. When his memory starts coming back, he attempted to reject it, causing his Darkhell and Elysio personas to split into separate beings.
- At one point, Catwoman became simultaneously two Enemy Withouts for herself. Since Gotham City had been put into a Lotus-Eater Machine, "Catbird", now a hero, Batman's husband and living a happy life, begins to be stalked by a woman who looks a lot like herself, who subsequently attacks her trying to tear apart the illusion. Both claim that the other is evil: Catwoman is destroying Catbird's idyllic life, but she claims Catbird is stealing her true nature and the reality of her life.
- Inner Demons: Throughout the story, Twilight has been controlled by her inner Darkness, which transformed her into the Queen of Darkness, the story's Big Bad. However, when the Elements of Harmony on used on her during the Final Battle, the Darkness is forced out of her body, only to take on a life of its own.
- Inverted in the Pony POV Series. During the final battle with Nightmare Whisper, Fluttershy's Superpowered Evil Side, Fluttercruel breaks out of her to help the heroes. Unlike most examples, this time it's a good entity previously contained in a now evil one that breaks free to help save the world instead of the other way around.
- In the Pony POV Series Chaos Verse (a recursive spin off of the above), the Big Bad is revealed to be one of these, specifically Nightmare Moon's essence, separated from Luna by the Elements of Harmony and given a life of its own as the Eldritch Abomination Nightmare Phobia.
- Subverted to hell and back in this Kingdom Hearts fic. Xehanort kidnap The Hero to infect Sora's heart with anger and vengeance, Sora turned himself into full heartless, allowing Roxas to take over his body without either of them losing too much strength, and thus bring their anger down on the Big Bad and try to avenge his victim. (as opposed of the half-state half-power they experience like in CoM and Days). Only because The Power of Love and Friendship helped.
- In Dragon Ball Z Abridged, Guru shares this relationship with Lord Slug, similar to that of Kami and Piccolo. That is, Guru is the evil half.
- Shadows Awakening: Near the end of the story, The Queen succeeds in corrupting Jade, causing the Tiger Talisman containing her to react by forcibly separating them, giving the Queen her own body, with all of the powers Jade had as a Shadowkhan.
- In the Danny Phantom fanfic series, Facing the Future Series, the separated ghost half that Tucker wished for makes a return.
- Subverted in the Touhou doujin Remily the Strange. When Remilia looks into a cursed mirror, it creates a doppelganger that's supposed to represent the victim's repressed evil. However, Remilia is already completely evil, so the doppleganger ends being extremely timid and "spaced out".
Films — Animated
- Used symbolically in Megamind: The Button of Doom where Megamind is forced to face a giant robot programmed with his former evil personality. He only manages to defeat it when he quits trying to emulate Metro Man and uses his "evil" intellect to take it down, not only making peace with himself but also symbolically "destroying" his former self once and for all.
Films — Live-Action
- In The Empire Strikes Back, Luke encounters a phantom Darth Vader in a Force-flooded cave on Dagobah. When he strikes it down, it turns out to have his own face, representative of his own fear of turning to the Dark Side if he should do this for real.
- In Forbidden Planet, the Monster From the Id.
Morbius: Guilty! Guilty! My evil self is at that door, and I have no power to stop it!
- Superman III features a pretty good fight sequence between a red Kryptonite-infected Superman and his moral base, Clark Kent. It's also a bit of a subversion in that its clearly shown to be a metaphor for Superman's internal struggle not to do whatever he pleases.
- The Nutty Professor II: The Klumps: Buddy Love is excised from Sherman Klump's body when the latter decides he finally wants to be rid of him, whereas in the previous film he was simply an evil Split Personality. However, this turns out to have negative side effects since neither can survive without the other and Sherman starts to rapidly lose his intellect.
- Subverted in Scott Pilgrim vs. The World. At the end of the movie, Scott is faced with his shadowy doppelganger, "Nega-Scott"; but instead of fighting, they make plans for brunch. Apparently, they share a lot of the same interests. This is a major deviation from the original comic, where it was more of a Hopeless Boss Fight that could only be resolved by reintegration.
- In Gremlins, Gizmo is an adorable little critter who gives birth to other adorable critters when he gets wet... one of which always has a white stripe and really hates him.
- Pinhead Unbound in Hellraiser III: Hell on Earth. After Captain Spencer rediscovered his humanity in the last film, his evil proved so strong that he was split up into his good human spirit and the Cenobite Pinhead, now pure evil.
- In the Twist Ending of Hellraiser: Inferno, it turns out that the Engineer is a representation of the darker side of Joseph's personality, a remorseless hedonist.
- The robed figure Faust in Ghoulies IV turns out to be the incarnation of evil that the main character from the first Ghoulies film cast aside when left the occult, who now needs to replace him in order to continue existing.
- This is the premise for most of A Wizard of Earthsea.
- The Yamiko in Sailor Nothing (also The Heartless).
- Hunger in Matthew Swift is this for Robert Bakker. Unusual in that it targets Matthew rather than its originator.
- In Thursday Next, Thursday's adventures eventually inspire a book series, with the books' interpretations of Thursday appearing in the fictional Bookworld. The Thursday of the first four books is a leather-wearing pastiche of badass Anti-Hero cliches, who eventually just decides to turn evil. Interestingly, after these four books the writers decided to go in the opposite direction so there's also a Thursday who's a touchy-feely Granola Girl. This gives the impression that she's become a Literal Split Personality, except that the real Thursday is still around and is demonstrably the only one from the Real World.
- A portion of Brave Story involves this trope. It becomes crucial in the climax.
- Spock gets an "evil version" in Spock Must Die. It's caused by — yes, you guessed it, a transporter accident.
- The Dark Half, by Stephen King: The protagonist, an author, is persecuted by his pen name, which has come to life as an independent individual after being given a mock "funeral." Apparently the pen-name persona has created its physical form from a rudimentary conjoined twin that was removed from the protagonist's body in childhood. King was inspired to write this novel by his experience with his own pen name, Richard Bachman.
- In the Russian adaptation of "The Shadow" story, written by E. Schwartz, the protagonists's shadow becomes this. It is repeatedly shown that the hero and his shadow share abilities, but use them differently.
- Averted (somewhat), but this was at least part of the motivation for Dr. Jekyll. He hoped that he could divide a person's good and bad sides, and let each one go free to its own devices, letting both of them do what they do best and each to be happy. It didn't work out that well, leading only to Hyde's malevolent persona and a physical transformation. Ironically, this, including the fact that Jekyll and Hyde were one person, was supposed to be all revealed as a twist in the end.
- In The Separation of Animorphs, Rachel has a Starfish Character episode, where she's split into two halves, dubbed "Nice Rachel" and "Mean Rachel." Mean Rachel is widely regarded as the "enemy" of the "Enemy Without." Subverted when, eventually, Rachel (along with everyone else) realizes that both halves are needed. Played straight because, for the rest of the series, Rachel recognizes that darker part of herself, and does not like it.
- In book 12, Rachel acquires a crocodile morph. She turns out to be "allergic" to it, and eventually expels the DNA from her system which turns into a fully grown crocodile. Which is a problem.
- An odd example is in Ex-Heroes. The hero known as Cairax is really a demon, and when he returns in the third book, the human who had merged with him splits apart, and acts to destroy him.
- "William Wilson" by Edgar Allan Poe has an interesting twist on this idea. The narrator is a complete Jerk Ass, and the story describes his torment as his schemes are frequently thwarted by another person identical to him, even down to having the same name. It turns out that this second character is the personification of his conscience, whom he murders at the end of the story.
- A short story by Bruce Coville called "The Japanese Mirror" has this. The protagonist finds a strange mirror which absorbs his anger. At first, he sees nothing wrong with this as it seems to fix his anger issues. But as he becomes thinner and thinner, he finds out that a darker copy of him is lurking in the mirror, feeding off his anger and waiting to take over his body.
- In Julian May's Galactic Milieu Trilogy (Jack the Bodiless, Diamond Mask, Magnificat), a principal adversary is an immaterial being called Fury that turns out to be a subconscious manifestation of a major character.
- Red Dwarf
- In Terrorform", the crew have to rescue Rimmer from a planetoid that has modeled itself on Rimmer's subconscious, populated by personifications of his attributes. The Big Bad in this case is Rimmer's Self-Loathing, and the only way to defeat it in the end is to convince Rimmer that he is loved. It is solved by a group hug. And it's hilarious.
- "Demons and Angels," is an even better example of this trope. In it, the Red Dwarf and its crew are given "good" and "evil" copies by a triplicator; the "good" Dwarf is shiny, white, and well-maintained, while the "evil" version looks like an abandoned oil refinery. Similarly, the "good" versions of the crew are a bunch of pacifistic milksops, while the "evil" ones are sadistic monsters that dress in lots of leather. The plot revolves around causing the "good" and "evil" sides of the Dwarf to re-merge, as the original was destroyed in the process of creating the two duplicates; merging the "good" and "evil" sides of the crew is less of an issue (and in fact becomes impossible, as the "evil" crew members rapidly kill off all of their "good" counterparts).
- Doctor Who:
- In "The Trial of a Time Lord" Story Arc, the Valeyard, prosecuting at the Doctor's trial, is revealed to be all the darkness in the Doctor's soul, given life at some point between his twelfth and final incarnations.
- In "Journey's End", the half-human Doctor created from the Doctor's severed hand and the Doctor's companion Donna is willing and able to commit genocide on the Daleks. The real Doctor isn't pleased. Note that this version isn't actually evil, he's just more ruthless than the real Doctor is comfortable with. The difference in personality is due to the fact that the severed hand that created the half-human Doctor came from a time before he'd had a chance to partially heal from the Time War, and still had a lot of the less forgiving, Dalek-hating (but still good,) Ninth Doctor in his personality. Another theory is that being human, he had the ruthless pragmatism of humans instead of the Doctor's idealism. It can still come across as a bit bizzare that the Tenth Doctor treats him like a monster for destroying the Daleks even though they had nearly destroyed the Universe, and in fact, the whole multiverse, and the other option looked like just leaving them round to cause even more death and misery.
- The episode "Amy's Choice" takes place in a Black Bug Room version of the TARDIS created via an unintentional Psychic Link between Amy, Rory, and The Doctor. The "Dream Lord" who terrorizes them is basically a manifestation of the Doctor's self-loathing.
- In the Star Trek: The Next Generation episode "Skin of Evil", the antagonist is the Enemy Without for a civilization.
- Despite its name, the original-series Star Trek episode "The Enemy Within" makes Kirk into a Starfish Character, not an Enemy Without or even an Enemy Within as per the title.
- A somewhat confusing example in Supernatural's "Dream a Little Dream of Me". In his "dreamworld", Dean's doppelganger taunts him on his low self-esteem and Daddy issues until Dean fights back in a rage and shoots it three times in the chest. Then it comes back as a demon note
Demon!Dean: "You can't escape me, Dean! You're gonna die and this, this is what you're gonna become!"
- He also appears at the end of the episode, repeating the line and snapping his fingers with a big smile on his face.
- An episode of Angel serves as a perfect example of the dreamscape variety. Faith (through methods and because of reasons that are both too complicated to explain) ends up inside Angel's head and meets Angelus (Angel's Enemy Within) there as well as Angel. This culminates in a battle between Angel and Angelus achieved by carefully choreographed fight scenes with David Boreanaz and a split screen. It's quite impressive.
- In The Outer Limits (1995) episode "Monster", a group of telekinetics recruited by the CIA to perform long-distance assassinations are eventually stalked and killed by an amorphous cloud of hostile psychic energy that they apparently spawned.
- The trope is used in the third season Charmed episode "Just Harried", where Prue's constant suppression of her emotions leads to her id taking over her astral self and breaking away from her 'real' body.
- In 7Days, Frank has an evil twin split off him when he travels to the past. After some time, the Evil Frank kills him, and travels to the past... only to be defeated by a good Frank who split off him using Now Do It Again Backwards to invert this trope.
- In Misfits, due to the Storm, Rudy gained the ability to split into a Extroverted and Introverted version of himself. Subverted in that aside from constantly arguing, neither one of them is actually evil. Played straight by the third version, who was such a complete psychopath, the other two conspired to put him in prison.
- The Wizards of Waverly Place reunion special "The Wizards Return: Alex vs. Alex" has Alex casting a spell on herself to get rid of her bad qualities, which manifest into an evil reflection in a mirror that escapes and becomes one of the villains of the special. When her Implacable Woman tendencies prove her to be impossible to get rid of through magic alone, Alex draws her back into her body by voluntarily renouncing her powers.
- In the finale of Season 5 of Once Upon a Time, Dr Jekyll creates a potion that separates him from Mr Hyde; it is later used by Regina to separate the Evil Queen. Regina thinks she killed the Queen immediately after the seperation but was wrong, presumably setting up the Big Bad of Season 6.
- The Secret World of Alex Mack has Alex accidentally come into contact with a compound called "GC Divide" which splits her puddle form into two people with distinct personalities, one being the regular Alex, and the other being her repressed bad-girl side that tries to eliminate her good half on two separate occasions, as well as just being unpleasant to everyone around her.
- The titular hero of Ultraman Ginga has one in the form of the show's Big Bad Dark Lugiel. The two were originally a singular being from the future whose contradicting preference over life forms had caused the split. Lugiel believes that to end suffering, all lifeforms must be paused to obtain peace but Ginga believes that overcoming sadness is what makes them stronger. At the final episode of Ultraman Ginga S, even Ginga admits that each time he grows strong, same thing will be applied to Lugiel, indicating that they will always be connected even if the latter had already dead.
- In Exalted, the Ebon Dragon Charm called Black Mirror Shintai allows the user to become the victim's Enemy Without. Their victim's shadow disappears, and the user becomes an exact copy of them in all ways except one: their Motivation is a perfect inversion of their victim's, being devoted to undermining their goals and tearing down whatever they hold most dear.
- And in Fading Suns, this is what happens if a psychic behaves very badly.
- New World of Darkness
- In Mage: The Awakening, it is possible (although not wise) for a mage to bring some aspect of his personality (usually his personal Vice) into reality in a physical body. Doing so frees the mage of that personality aspect, but having a mage's Pride or Wrath walking around doing stuff isn't usually a good thing.
- Similarly, Vampire: The Requiem introduced the idea of "Hollow" Embraces — vampires who were Embraced post-mortem. They have the traditional vampiric trait of not having any reflection and not appearing on film, whereas other vampires just show up blurry. Thing is, that reflection is now a separate being. And it hates them.
- Before it was retconned as a part of the Ravenloft setting, the 1st edition AD&D module I10: The House on Gryphon Hill was a stand-alone adventure in which the vampire Strahd von Zarovich was the Enemy Without of a benign alchemist with the same name.
- There is a D&D item called the mirror of opposition. It's basically a magical trap: if you look in the mirror, it will create an Enemy Without of your own level and carrying similar equipment, but with an alignment opposing yours. Since characters of directly opposed alignment have very different morals and worldviews, they will likely initiate combat right away.
- Vezon is this for Vezok in BIONICLE. They're both evil, (mostly), it's just that one has very good tactical thinking abilities, and the other one has sanity. An unusual variation of this trope is that Vezon, the duplicate, is now acknowledged as a character in his own right, and has actually surpassed the original in terms of popularity.
- The original story plans (that were ignored by Cathy Hapka when she wrote Tale of the Toa, though later Retconned into canon by the BIONICLE Encyclopedia) for the defeat of the Shadow Toa was essentially this trope in reverse. The only way the Toa Mata could defeat the Shadow Toa was by accepting the Shadow Toa as manifestations of their own inner darkness, and thereby absorbing the Shadow Toa into their bodies.
- In Ultima IX, it is revealed that The Guardian, the Big Bad of the later games, is in fact the "cast off" parts of the hero after he became the Avatar, the embodiment of Virtue. This contradicts parts of the plot in Ultima VII and 8 and in Ultima Underworld 2.
- In Final Fantasy IV, in order for Dark Knight Cecil to become a Paladin, he has to defeat his Dark Knight self not by fighting hand-to-hand, but by dragging out the fight, since Dark Knight Cecil uses exclusively an attack that damages the opponent at the expense of the caster's own life. The game even alerts the player of this, by saying that "A true paladin... sheaths his sword". In the American SNES version, however, since the aforementioned attack doesn't exist, the scene makes it seem that Paladin Cecil is letting his dark self "punish" him without striking back, thus defeating it. This only applies to the original Super NES release - the American versions of the PlayStation and Game Boy Advance ports are identical to the Japanese and the attack exists in both.
- A similar thing happens in the sequel The After Years except Kain's dark side escapes, forcing Kain to track it down, but not before Kain's dark side wrecks havoc stealing crystals. Likewise, you have to fight Cecil's Dark Side again. Interestingly, in both cases you have to kick the Dark Side's ass first before integrating.
- In Lightning Returns: Final Fantasy XIII, Lightning's attempt to seal away her own weaknesses is revealed to have manifested as Lumina.
- Omen in the 2013 reboot of Killer Instinct. With a malevolent servant of Gargos known as Omen inside of him, Jago risks transforming into the evil Shadow Jago. Eventually he manages to purge his spirit and expel the demon, but at this point Omen had become so strong he could manifest his very own body. Thus Omen was born.
- Happens quite a few times in Kingdom Hearts:
- The local incarnation of Sephiroth appears to be this for Cloud — as such, all of Sora's skills cannot defeat him and This Is Something He's Got to Do Himself. You can at least convince him to back off by battering him around. The same game to reveal this implies that Tifa is Cloud's "light without", making her an inversion.
- Vanitas is the Darkness Without of Ventus. He looks like a black-haired, golden-eyed Sora, since Ven's heart latched onto the then-newborn Sora's in order to survive being ripped in half.
- Most of The Heartless are generic and identical to others of their type. But if a person's heart is strong enough, it becomes a unique creature fueled by the darkness in that person's heart. They can easily become the enemy (or goal) of the Nobody created from what's left when the Heartless is formed.
- Space Harrier II with the final boss being Dark Harrier.
- "Dark Mega Man" at the end of Mega Man Battle Network 4. In Battle Network 5, he would spawn on the enemy side whenever one of the Dangerous Forbidden Technique Dark Chips backfired. And heaven help you if that ever happened during a boss fight...
- In Mega Man Star Force, Pat and his evil split-personality Rey both got separate bodies when fusing with Gemini. Unique in that Pat goes with what Rey says instead of trying to fight him. Because of that, Mega Man has to stop them both.
- Part of the big reveal in Mega Man Zero 3 is that you've been playing as one for the past three games. Sometime after Mega Man X: Command Mission takes place, Zero was suckered by the evil Dr. Weil into being put into stasis, thinking it would remove the last traces of the Maverick virus from him when in reality it was just the opposite: Weil used a cheap copy of Zero's body to siphon off the good personality created by Dr. Cain after he was captured by Sigma so that the real Zero could become the psychotic killer that Dr. Wily always wanted.
- Happens once in Sam & Max: Freelance Police: In "Bright Side of the Moon", the Big Bad removes Max's hand, stomach, and tail. Each one turns into a different color Max embodying his tendency for violence, gluttony, and laziness, respectively. Without those traits, Max becomes completely docile and unable to interfere with the villain's plan.
- "Dark Link" at the end of Zelda II: The Adventure of Link. Dark Link appears in later Zelda games as well, but this one fits the trope the best. A wizard is even seen making Dark Link pop out of Link once the boss room is entered, Link's final test for the Triforce was fighting his own evil. Dark Link (and his clones) plays a much larger role in The Legend of Zelda: Four Swords Adventures.
- The Transcendent One from Planescape: Torment, your mortality made flesh and removed from your body by magic... Who has nothing but the deepest of loathing for you and does not want to return.
- A Puzzle Boss in the original Prince of Persia revolved around this concept, being a Living Shadow split off by a magic mirror. As usual, the solution was to re-integrate.
- Eclair in La Pucelle has to fight her inner evil self; the resolution is that she must accept it, whereupon she gets the ability to transform into that self in later combats. However, the gameplay required to do this is an ordinary combat with a cut scene at the end showing the "acceptance".
- Eclair being an homage to Princess Crown's Gradriel, the latter's heroine also faces off against and gains the power to transform into her evil version.
- Inversion: Rularuu the Ravager, a Sufficiently Advanced Alien eater-of-dimensions from City of Heroes, has a Hero Without, Faathim the Kind, who helps you fight him.
- City of Heroes also has the Madam of Mystery, who gets stronger every time you fight her again. It turns out that she is the manifestation of darkness in the soul of the very person who is sending you to defeat her, only she doesn't know it.
- In a City of Villains mission, you go inside Johnny Sonata's head and kill his soul. Again inverted, his soul is nicer than he is.
- Shin Megami Tensei: Persona, given its thematic basis in Jungian psychology, loves this trope:
- Aki (Maggie) and later Pandora in the original Persona are embodiments of the negative aspects of Maki (Mary). Inverted with Mai (Mae), who's an embodiment of Maki's innocence. Unless you're on the Bad Ending, in which case Mai tries to kill you with a Monster Teddy Bear and sends Maki to Limbo.
- Persona 3 FES's extended epilogue, "The Answer", has a dark version of the main character as a boss. Subverted in that it doesn't come from the main character (he's dead), but rather from the party's collective regret of his death.
- In Persona 4, Personas arise from accepting and embracing one's Enemy Without (specifically, the part of themselves that they fear/hate and hide from everyone), which are even referred to as Shadows. Denying it instead makes it go into One-Winged Angel mode. This is why entering the TV world is so dangerous, as anybody without a Persona who does so will eventually run into their shadow. Only young children are exempt from this. The main character and the two main culprits are also immune to this, due to having their powers granted to them by the goddess that orchestrated the events of the game.
- The Idea of "Shadow Selves" dates back to Persona 2, though the people they appeared to already had Personas, they didn't go One-Winged Angel, and they attacked even if you did accept them. However, the "Shadow Selves" in Persona 2 are not escaped from the characters themselves, but instead seem to be manufactured by Big Bad Nyarlathotep, possibly through exploitation of the rumors-to-reality system. They have their own Personas which were also mirrors of the originals, right down to the techniques.
- For that matter, Nyarlathotep itself is essentially the collective Enemy Without of the entire human race, and most of the franchise's other Big Bads are literal embodiments of humanity's most negative aspects.
- In the original Shadow Hearts, Yuri had to deal with the mysterious Fox Face, who appears if the in-game Karma Meter rose to high by defeating enemies. Halfway through the game, it is revealed that Fox Face is the manifestation of Yuri's fear of succumbing to the monsters that dwell within his soul as a Harmonixer. Once he learns that his soul belongs to himself alone, and the monsters can never take him over, Fox Face disappears. In addition, when Yuri harmonizes with a monster soul after this sequence, his animation changes from a frightening cry of anguish with accompanying head pain to a simple grunt with accompanying arm swing, showing that he has cast off his fear of his power.
- In Twisted Metal Head-On, it is revealed that Needles Kane, Sweet Tooth's driver, the psychotic clown, is a split personality of Marcus Kane. They drive different cars, and can fight and kill each other in the game. Eventually, Marcus gives in to Sweet Tooth's influence, and together, they drive a building and become Tower Tooth, the final boss of the game, as well as Dark Tooth, which is a super-powered ice cream truck with giant jaws that smash opponents. Which they also drive together. And ALL FOUR of these can fight in the same match. .
- Jade Cocoon 2: The first two-thirds are spent collecting items that will allow the demon possessing Kahu to be drawn out and defeated in this manner. Afterwards, Kahu must travel to the Forest of Darkness and slay four kalma who are possessing his friends and drawing out their inner evil or self-doubt.
- In SoulCalibur, Nightmare was originally Siegfried's alter ego, but subsequent games have given it its own body and personality (an extremely Chaotic Evil one).
- Silent Hill:
- Silent Hill 2: Pyramid Head is eventually revealed to be the incarnation of James Sunderland's guilt and weakness over his wife Mary's death, which kill themselves (there's two of them at this point) once James accepts the truth. The fact that Pyramid Head shows up in later games regardless of James's absence is a shining example of The Artifact.
- Silent Hill 3 Memory of Alessa.
- Silent Hill: Origins: The Butcher (who could also be the Enemy Within according to one of the game's Endings).
- World of Warcraft: Leotheras the Blind summons Inner Demons from raid members when he transitions to demon form. Each demon can only be hit by the person it was summoned from, and if that person doesn't manage to kill it before he turns back to his human form, they become mind controlled for the rest of the fight.
- Devil May Cry 3: The "understand your dark side" part is lampshaded (and subsequently averted), when a shadowy doppleganger of Dante appears to fight him.
Dante: I know why you're here. You're here to ask me some questions. Well too bad. I've already answered them myself. I don't need you.
- Llednar in Final Fantasy Tactics Advance is actually Mewt's form of concentrated power and hatred that is invincible to all forms of attack until Cid uses a card by Ezel to nullify Llendar's invincibility. Once defeated, Llednar turns into stone and crumbles.
- The final boss of The Suffering is lead character Torque's intense psychological issues given physical form by the evil presence at Carnate. This first manifests as Torque himself. In a blunt application of the "understand your dark side" aspect, he has to make use of his Enemy Within Super Mode to defeat it (using human form damages yourself). Then you have to fight said Super Mode in human form (self-damage applies, as before). Finally, it takes the form of an enormous, grotesque monster, which you have to beat with the help of Killjoy's machine.
- Darth Nihilus from Knights of the Old Republic II is hinted to be the Enemy Without of the main character. The cut content even includes a scene where it is flat-out stated that Nihilus and the Exile are two halves of the same being.
- In Kid Icarus: Uprising, Pandora attempts to create one for Pit with the Mirror of Truth, but "Dark Pit" ends up defying this by being stubbornly independent.
- In the Shantae series, Shantae is a half-genie, half-human hybrid with a mild yet ongoing identity crisis. Then the pirate captain Risky Boots comes along and uses a magic lamp to rip out Shantae's genie magic, resulting in a half-human VERSUS half-genie Mirror Boss for the poor heroine.
- In Metal Gear Ac!d, it is revealed that Snake spent several years of his life living as "Hans Davis", a Mad Scientist alter ego who forced children to battle to the death to create a strong child to use as a weapon. Things get worse when he encounters Hans in person, who has an extended conversation with him, identifies himself as Snake's Doppelgänger and claims that 'when someone's Shadow grows too big it can leave the body and walk around on its own. And that is how we're both here'.
- The final boss of Barkley, Shut Up and Jam: Gaiden is Shadow Barkley. In the Movie Space Jam, which the game is based very loosely around. His abilities and knowledge were stored in that Basketball along with that of other players. Shadow Barkley emerged as a result of negative energies and Barkley's negative thoughts stored inside the ultimate B-Ball
- A Bonus Boss in Sands of Destruction is Dark Kyrie, a Shadow Archetype of the hero. He's the manifestation of Kyrie's doubts and fears, a side effect of when he grew a soul and became human, then decided to give that up to try and save the world from his serious power incontinence. Apparently the part of himself that he rejected in order to be able to make a Heroic Sacrifice also rejected the idea that suicide would save people and so got himself his own body (and an Infinity +1 Sword).
- Inverted in Hyrule Warriors, where Lana is Cia's goodness that has been expelled and given form.
- This is actually written into the setting background for Diablo; in the setting's Creation Myth, there was originally a single Supreme Being, Anu, which tried to attain true perfection by casting out the parts of its being that represented the concepts of evil. This resuletd in Anu becoming a being a pure good, as it had intended, but also caused the evil parts of itself to attain independent life as Tathamet, a seven-headed demonic dragon. The two promptly tore each other apart; the High Heavens coalesced around Anu's spine, whilst Tathamet's corpse become the Burning Hells and its seven heads became the setting's Demon Lords And Arch Devils. Sanctuary, the mortal world, was created when a band of rebellious angels and demons used the Worldstone (the crystalized eye of Anu) to create a hiding place for themselves, whilst humanity came into being as a result of crossbreeding between the renegades.
- The miasmon of Taming Dreams are emotions and internal turmoil given form by miasma, the dregs of the material the gods fashioned the world out of. Pleasant emotions tend to manifest as cute forest critters, while intense emotional turmoil creates giant monsters that tend to be more or less abstract visual representations of said turmoil.
- In Amnesia: A Machine for Pigs, the Engineer is a part of the hero's own soul, representing his mad wish to prevent his visions of war and bloodshed in the 20th century.
- An important character in the level 50 Dark Knight quest in Final Fantasy XIV has this trope and you have to beat it down before it does any more damage. Said character in question is YOU. Your own inner darkness yearns to be free of control and servitude after being sick and tired of always playing the hero and getting nothing in return for their heroics. Because you keep denying your desires, it manifests itself as a copy of yourself and attacks you to assert dominance. Once it's defeated, it stops trying to overtake you and will only emerge if you ever need them.
- According to Word of God, every enemy in The Binding of Isaac is this in one way or another, and some are more obvious than others in that regard, but there are a few specific examples. We have It Lives!, the Palette Swap of Mom's Heart and Isaac's embryo, in the Womb levels. Isaac himself appears as a boss in the Cathedral, and ??? (Blue Baby) in the Chest soon after. In the Blue Womb we have Hush who is Isaac's dying body, and Delirium in the Void which is his mind finally breaking down.
- Inverted in Megadimension Neptunia VII where Uzume Tennouboshi, the friendly if brash new CPU Neptune and the others befriend, is what's left of the goodness and conscience of the original Uzume Tennouboshi, which separated from her after she became consumed by hatred and evil and took on the name Kurome Ankokuboshi.
- This is one of the main plot points of Celeste, in which Madeline's alternate self (Also known as "Part of Me"), escapes and serves as an antagonist during the game.
- Nanaya Shiki in Tsukihime: Melty Blood. Though, in a sense, he can be considered a form of alternate "what if" version of Tohno Shiki.
- Or what Shiki thinks is an alternate "what if" version of him. Also from the same game series: Red Arcueid (Arcueid falling to her bloodlust), and White Len (a jerk mirrored version of Len). Akiha Vermillion and Sion TATARI look like this, but actually aren't, Vermillion being Akiha's Super-Powered Evil Side (but not really that evil) and Sion TATARI as an alternate fate of Sion. However, this trope does sort of apply to Dust of Osiris, who is an alternate Sion from a potential future. And finally, the Night of Wallachia/TATARI can become/create this.
- Umineko: When They Cry:
- In the third arc, Eva's younger-self "Imaginary Friend" becomes the new Endless Witch, and sets about murdering her entire family in the most cruel and unusual ways she can think of, apparently over Eva's protests. She's actually an Anthropomorphic Personification of theories that place Eva as the culprit.
- More broadly speaking, Bernkastel is this for Rika, from its predecessor, Higurashi: When They Cry. It turns out that the events of Saikoroshi-hen purged her from Rika's consciousness. She is, in essence, the embodiment of all of the dead Rikas who never made it past June of 1983. She doesn't actually rampage around in her source's world, however, instead making trouble in other worlds simply for her own amusement.
- The Fighting Game Ougon Musou Kyoku Cross introduces Black Battler, who is the Anthropomorphic Personification of the idea that Battler is the culprit.
- An interesting variation is found in 8-Bit Theater, where during the main characters' trip into the Castle Of Ordeals, the only thing evil enough on the Castle's record to represent Black Mage's sins is... himself, who becomes more powerful as Black Mage reminds the doppelgänger of a few serious sins the Castle forgot to add. In typical fashion, Black Mage gets the manifestation to let its guard down, then stabs its face... from behind. Then absorbs its evil energy to avoid the catharsis of killing his own evil. Then commits one last atrocity offscreen, implied to be sex with the corpse.
- In The Wotch, Anne once tries to create helper duplicates, and makes sure none of them believe they're the original or decide they'd rather stay separate. Something goes wrong with it anyway, and each copy is a different aspect of her personality (often simply wearing a different color, though a few take on forms from previous arcs, such as her courage being a Batgirl-based hero, and her curiosity being a Cat Girl.) The villains talked her anger, frustrated with having been kept from acting by the rest of Anne's personality, into refusing to return and trying to get rid of the others.
- After a crossover with Melonpool, It's Walky! introduced Anti-Joyce, a slutty duplicate of Joyce supposedly created from her repressed libido via the Dupe-O-Matic. She was killed by the original shortly afterward.
- Misfile: The Wraith in the Aiden and Bronwyn arc was a projection of the negative parts of her love. Maybe.
- The exact nature of Xero in Suicide for Hire isn't quite clear, though he's definitely spawned from Arcturus' dark side. Arcturus describes arm-wrestling with Xero as a "metaphorical battle", implying it's taking place only in his imagination, and nobody else can see Xero, but Arcturus holds conversations with him out loud (much to the confusion of the waitress who sees him talking to himself and can't hear the replies). The strongest evidence that Xero has some kind of tangible form is that items of clothing Xero was seen wearing, which Arcturus doesn't own, keep turning up in places he's recently been.
- Subverted to hilarious effect in Rusty and Co. when Madeline the Paladin gets zapped by an artifact that draws out her evil side, Anti-Madeline — who turns out to be about two inches tall.
- White Dark Life has shadows, the dark half of a neutral soul. The most notable is Dark Matt, the Shadow of one of the main protagonists, while antagonistic he is in secret, very self loathing and envious of the protagonists.
- In El Goonish Shive, Abraham's Dewitchery Diamond "removes" curses by creating a whole new person. The old person now no longer has the curse, while the new person is the physical embodiment of it. Having created it in a Gone Horribly Wrong attempt to cure his friend of lycanthropy, assumed that the diamond would only be used on (and therefore create physical embodiments of) actually dangerous curses, which fall under this trope. Accordingly, he vows to destroy all "abominations" so created. However, when Elliot uses it to "cure" a Gender Bender, the result is Ellen, an innocent Opposite-Sex Clone, who (despite a brief attempt) is just plain not evil.
- This was attempted in Survival of the Fittest version two, but didn't work out. The character Walter Smith was originally made in the pregame with the concept of him being the manifestation of Jack Bexley's dark side, as Jack was also a politician's child but, while he did not let himself be corrupted as Walter was, still had part of him that was like that. The plan was that they'd be bitter rivals, and Jack would eventually kill Walter in a fight late in the game as a symbol of finally getting rid of that side of his personality. Unfortunately, Jack's handler left the site and never put Jack into the game, leaving the storyline in the air and Walter as a pure evil villain without any of the symbolism.
- In The Spoony Experiment, Doctor Insano (pictured above) is an ambiguous example of this. It hasn't been made clear if he's a clone, Spoony's future self, or from an alternate dimension. Kickassia made it canon that Insano is part of a split personality Spoony has, which makes no sense in context of every other appearance Insano made.
- Atop the Fourth Wall has a peculiar variation. Linkara goes on a quest of sorts, and leaves behind a Star Trek-esque hologram with his personality. At the end of his journey, Linkara discovers that he had been slowly becoming evil; that is to say, he'd become aggressive, arrogant, uncaring, and using force to achieve self centred goals. On the way back home, he resolves to better himself and be a good person. The hologram, however, has no such character development, and while fairly affable in most conversation, he threatens the lives of Linkara's friends, and devises a plan to blackmail Marvel into writing better comics. Naturally, when Linkara gets home, he deals with the thuggish version of himself face to face.
- Happy Tree Friends: Flippy vs. Fliqpy in "Double Whammy". It ends up being a subversion, however...it actually is a case of Enemy Within and simply appeared to be Enemy Without to both Flippy and the viewer.
- Inverted in the case of Markiplier. During his playthrough of Markipliers Adventure 2, he revealed that the Nurse in his Surgeon Simulator videos was, in fact, a product of the Doctors diseased mind. However, in the game, she's an actual character.
- In Jackie Chan Adventures, this happens a few times with the Tiger Talisman (namely to Jackie), which can split a person's yin and yang sides into separate beings that act independently until they are fused together again. Notable, however, in that Jackie's dark side, while rude and prone to violence, is NOT evil, just incomplete without his light half, and is more interested in what he thinks is "cool".
- In Ben 10, Ben's Ghostfreak form is revealed near the end of the second season to be bad news... After Ben loses control, Ghostfreak winds up separated from Ben's body and on his own, chasing Ben and possessing others for the remainder of the episode, trying to get back to Ben's body and take over. One of the examples where "re-integrating" the Enemy Without would be a very bad idea.
- In Samurai Jack, Aku realizes that none of his forces are as strong as Jack is... so he creates an Evil Twin of Jack, made of Jack's anger and fury, to take him out. Naturally, Jack wins when he accepts it and doesn't fight back.
- In Darkwing Duck, the first episode ever written with a character called "Negaduck" was not truly starring the recurring Evil Twin Alternate Universe Negaduck that came to spearhead the Fearsome Five in later days. This Negaduck was the accidental byproduct of an invention Megavolt called "the tron-splitter", which was designed to separate an object into its component "positrons and negatrons", and then later re-merge them. A locked door, thus separated, would leave an empty doorway Megavolt could simply stroll through, and once re-merged without ever being unlocked, there would be no sign of tampering for the CSI squad to analyze. Things start going wrong when Darkwing catches him red-handed, and in the ensuing fight, Megavolt turns the tron-splitter on DW. DW's good side turns out, much like Captain Kirk, to lack the necessary sock-pow forthrightness that makes for a quack-fu action hero, while his evil side is unhesitatingly violent, and goes on a fearsome rampage. Later, it is discovered that the tron-splitter can "galvanize" a tron-pure subject, imparting functionally limitless super powers. As always, the solution is to re-merge the two before the Enemy Without destroys everything. Also includes an instance of Spot the Imposter, early on after the split.
- As implied, this is all a comedic rehash of an episode of the original Star Trek in which a transporter accident splits Captain Kirk in two.
- In Justice League Unlimited's third season, Shadow Thief was revealed to be Hawkman's Enemy Without.
- In the South Park episode "Fourth Grade," Mr. Garrison has a face-off with his "Gay Side" in a direct parody of the cave in The Empire Strikes Back. He loses.
- In an alternate Bad Future of Danny Phantom, after Danny's family and friends are killed in an explosion, he willingly agrees to separate his humanity. Thus resulting in his sympathetic arch enemy Vlad Masters — who had just recently adopted Danny — to honor his wishes by using the Ghost Gauntlets to separate his ghost half from his human half. This doesn't turn out so well; Ghost Danny instantly turns malevolent, grabs the Ghost Gauntlets, and rips out Vlad's ghost half. Then he merges with it, resulting in a Carnage-like mixture of Vlad Plasmius and Danny Phantom known as Dark Danny. Dark Danny then kills Human Danny and blows up Vlad's entire mansion, then spends the next ten years turning the planet into a living nightmare. He also goes back in time and attempts to cause the explosion that killed Danny's friends and family in the first place, thus ensuring his own creation. And this is a kid's cartoon.
- Teen Titans: This happens in multiple ways to all the Titans: Starfire, Cyborg and Beast Boy fight against the physical manifestations of their own evil, Raven confronts a case of Enemy Within in her dreamscape, and Robin fights a hallucination of his Shadow Archetype Slade that his own mind made up under the influence of a very, very bad trip.
- The Legend of Korra has Dark Avatar Korra, a manifestation of Korra in the Avatar State during her battle with Zaheer.
- SheZow has SheZap, the unintended product of Guy throwing a discarded fingernail into a nuclear waste vat. Described as his dark side, he's the same as Guy except his outfit is black and green, his voice is higher to exemplify his instability, his version of Guy's Laser Blade is a curling iron that doubles as a Hot Blade, his skin has a Sickly Green Glow, and his motivation appears to be For the Evulz.
- Played With in Gargoyles—Coldstone is a gargoyle zombie robot who actually has three souls Sharing a Body; one of them is evil. In their last cartoon appearance, Puck and Alexander arrange for them to have three separate bodies, and the two good ones leave on a quest to finally take down the evil one.
- The episode of Courage the Cowardly Dog Angry Nasty People has zombie director Benton Tarantella use a special camera of his to create a projection and embodiment of all of Eustace's cruelty called Mr. Nasty, a literal negative copy. Given the source that he came from, he doesn't look much different and is just as abusive to Courage as normal Eustace is, but the difference can gradually be seen by how meaner than him he acts towards Muriel as well. Unlike full examples Eustace is too preoccupied with the money that Mr. Nasty brings him to care about his evil side's insults towards his wife and him as well.