History Main / JekyllAndHyde

* In ''Minimonsters'' we have Henrietta (The original and good entity) and Miss Hit (The KickAss identity). Her father can also count.

The real life example of [[http://en.wikipedia.org/wiki/Deacon_Brodie Deacon Brodie]] (cabinet-making pillar of the church by day, burglar by night) is said to have inspired Stevenson.

* The first 5 Albums of ''ASP'' tell the story of the Black Butterfly, a vampire-like entity, which sometimes seems to inhabit the body of the protagonist. For example, in the song ''Lykanthropie (Es tobt ein Krieg in mir)'', it's compared to werewolves, with the protagonist not remembering what he did.

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* In [[Fanfic/God Save The Esteem]], this trope gradually comes into play. At first, Stacy Rowe, a [[TheWallflower wallflower]] high school student whose [[WithFriendsLikeThese friends]] in the Fashion Club are so exhausting to put up with that Stacy gives hanging out with the local group of punks a try, albeit under disguise. But then she grows lonely and weary of trying to find a boyfriend who lives up to either group's standards, so she creates another identity as a nerd. Where this trope comes in is when she loses her grip on her personalities, and begins switching between them without control, and begins blacking out on what the other personalities did. By the time the fic ends she's up to ''five'' personalities: ExtremeDoormat Fashion Club member, violent and alcohol loving punk, perky and upbeat nerdy girl with a stable relationship, paintball gun wielding vigilante, and British soccer team member. Following the timeline of the fic, she was only in control for a few months before she began switching at random. This doesn't end well for her when she snaps at school...

* Angel Starr from the first ''VisualNovel/AceAttorney'' game, complete with PeekABangs moving from one eye to another depending on whether she's sweet or sour.

* In the manga 666 Satan (or {{O-Parts Hunter}} in the US), the main character Jio has Satan inside of him. Satan comes out when Jio's or his friend's lives are threatened. [[spoiler:That is, until the time skip. By the end, it's revealed that Jio is Satan reborn. Jio is ''Satan's'' dual personality.]]

*** Except that Angel losing his soul always leads to the demon Angelus taking over, because Angelus is always there. Otherwise Angel would, at least, not be able to vamp out, and probably keel over dead, being a corpse, without the demon animating him. For proof, see the season 2 finale of Angel. When he tries to vamp out on Pylea, [[spoiler:the demon takes over completely and is a mindless, inhuman monster]]. Angelus, particularly according to that example, is a blend of the demon's personality and sadism with Angel's memories and brain(but not his soul). When Angel loses his soul, it's gone, and all that's left is Angelus. ''All'' of those incidents where he's evil ''are'' Angelus.

** Speaking of SpiderMan villains [[LizardFolk The Lizard]] also counts.

* Tsubasa from beyblade:metal masters has a dark side when he beyblade battles, making him obsessed with winning, going a bit mad. (He usually loses as a result)

** This is only a part of the story, as it was Edmond's own lust for revenge that summoned Gankutsuou to him, to begin withm, and Gankutsuou has no personal interest in doing any harm to Edmond's enemies or their loved ones, only fulfilling his own end of the bargain. When it seems that Gankutsuou has fully consumed Edmond, he simply walks away from the person he was about to kill as revenge by proxy, without so much as looking back.

* RosarioToVampire has Moka Akashiya, a shy, well mannered girl who is not always confident. Her true self is thuggish brute of a vampire who can kick the snot out of anyone.

* ''TheLeagueOfExtraordinaryGentlemen'' includes an aged, monstrous Hyde as a member. Jekyll is now thin and sickly while Hyde is a red-skinned, bulked up giant monster, and its implied that he was feeding off of Jekyll's energy. Hyde explains it by saying that "without [Hyde] Jekyll has no drive, and without him [Hyde] have no restraints."

* Bruce Banner and his more famous darkside Comicbook/TheIncredibleHulk.

* ''MagicTheGathering'', in its Gothic horror-themed ''Innistrad'' expansion, introduced [[http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=221209 "Civilized Scholar"]], a double-faced card that transforms into "Homicidal Brute". He was actually named "Jekyll and Hyde" as a placeholder in the early designs for the set.
* The quevari, a human subspecies from the {{Ravenloft}} setting, live as benign vegetarian pacifists by day, but are bloodthirsty killers by night. The darklord of Nova Vaasa, Sir Tristan Hiregaard, struggles against his crime-lord alter ego Malken.
* Every character in WorldOfDarkness KindredOfTheEast - the soul of an eastern vampire is divided into the higher Hun and the lower P'o - it is troublesome as it sounds, but P'o is indispensible; it serves as the SuperpoweredEvilSide, providing some essential combat powers (indeed, a vampire couldn't even grow fangs without it) and is responsible for him being undead in the first place (via LikeABadassOutOfHell)

->''I guess we're all two people. One daylight, and the one we keep in shadow.''

* ''WesternAnimation/MaryShelleysFrankenhole'' has ''the'' Jekyll and Hyde, whose serum causes JohnBelushi to turn into [[JamesBelushi Jim Belushi]]. Victor [[DeconstructedTrope also ridicules him]] for being his own monster.

* TV Tropes: SugarWiki and DarthWiki.

* [[spoiler:The protagonist and Tyler Durden]] from ''FightClub''.

* [[spoiler:Tyler Durden and the narrator]] in ''FightClub'', though you [[ItWasHisSled probably know this already]].

* In the book version of ''{{Dexter}}'', the lovable SerialKiller is motivated to kill by a sort of being/other personality, the Dark Passenger.

* In {{Daredevil}}, Typhoid Mary is the split personality of the otherwise nice and peaceful Mary Walker.

* [[TokenGoodTeammate Glen]] and [[EvilTwin Glenda]] from ''[[ChildsPlay Seed of Chucky]]''.

* In ''CitizenKane'', Charles Foster Kane tells Thatcher early on, "The trouble is, you don't realize that you're talking to two people," referring to himself as both a man of wealth and as a man of the people. One of the main points of the movie is the internal war between those two sides. [[spoiler: It can be argued that both sides lose by the end of the movie.]]

* "Dr. Heckle and Mr. Jive" by Music/MenAtWork. Almost a straight-forward summation of the plot of ''TheNuttyProfessor''.
* A variation can be heard in "Battle of Someone" by BluesTraveler. The first verse starts, "Well I love no one," and is generally cynical and embittered. The second verse starts, "Well I love everyone," and is idealistic and hopeful. The final verse contains the line "The preceding verses are the halves of my soul," and describes how the singer recognizes [[SlidingScaleOfIdealismAndCynicism the battle within him between the darker and lighter sides of his being.]]

See also YMMV.JekyllAndHyde.

* The [[HammerHorror Amicus Studios]] version, ''I Monster'' followed the original novel quite closely but changed the character's names in the hope of catching the viewers by surprise.

* It must have been FrizFreleng's favorite book, because he did three or four cartoons on the theme for Warner Bros., and a couple more at Depatie-Freleng Enterprises.