When the reason for ParentalAbandonment of a character is revealed, and the parent is someone important to the world of the story, or at least the events. Occasionally alluded to constantly but vaguely for maximum surprise. This is often coupled with some startling revelation about the child too, such as if the parent was/is a scientist and the child was [[TrulySingleParent created in a lab experiment]], or are following in a SecretLegacy of the family; if the parent is/was royalty, may result in a ReallyRoyaltyReveal.

In anime, said parent is usually the same sex as the child.

This trope can also apply to more distant relatives or siblings, although their existence isn't as intuitive.

Interestingly, [[TruthInTelevision real-life]] relationships can be just as tortuous and surprising as the fictional ones; for a famous example, JackNicholson learned just days before the premiere of ''Film/{{Chinatown}}'' that his recently deceased "sister" was in fact his natural mother, and that the parents who raised him were in fact his grandparents (similar switches occurred in other people's lives, such as singer Bobby Darrin).

Compare with LukeIAmYourFather. Also compare ChekhovMIA, when the missing person actually shows up in the flesh, and MamasBabyPapasMaybe, which is one reason why the parent is more likely to be the father than the mother. Subtrope of MysteriousStranger.

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!!Examples:

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[[folder:Anime & Manga]]
* Haru's father, Gale Glory, from ''Manga/RaveMaster'', due to the fact that [[spoiler:he helped found Demon Card and when he tried to stop them, he had a Dark Bring shoved in his forehead that would mature into a powerful explosive.]]
* Kanon's dad in [[KanonByChihoSaito Kanon]] (by Chiho Saito).
* Mikoto's constant references to her brother in ''{{Mai-HiME}}''. [[spoiler: He turns out to be much, ''much'' nearer than she thinks...]]
* Nadia's long-lost (and presumed dead) father in ''NadiaTheSecretOfBlueWater''.
* Sumire's father in the TV series version of ''SakuraTaisen''.
* Ahryung's mother in ''GwisinByeolgok'', a powerful shaman who for some reason sold her child's soul and body to Nachal.
* Van Hohenheim from ''Manga/FullmetalAlchemist''. It's initially presented as ParentalAbandonment, since that's how his children see it. However, the real reason for his leaving is because he's [[spoiler:a human philosopher's stone whose blood was used to create the BigBad Father, who then used Hohenheim as an UnwittingPawn to destroy the kingdom of Xerxes. Hohenheim is filled with guilt, and plans to stop Father from doing the same to Amestris; this was half of the reason he left home. The other half was to somehow find a way in which he could live out a normal lifespan and die at the end of it, so he wouldn't outlive his beloved wife and their sons. (He sorts fulfills this when he dies at the end of the manga, having outlived Trisha but not Ed and Al.)]].
** In the [[Anime/FullmetalAlchemist 2003 anime version]] this is changed; Hohenheim "''Elric''" [[spoiler:is the former husband of the BigBad Dante, and helped create several of the Homunculi. He left so that his decaying body would not be noticed.]]
* Renton's father in ''EurekaSeven'' is revealed to be more and more involved in the main plot as the story moves on.
** Ironically, Ao's parents, [[spoiler:Renton and Eureka]] In the sequel ''EurekaSevenAO''.
* Shun's father from ''GateKeepers''.
* Nagi Springfield, father of Negi Springfield of ''MahouSenseiNegima''.
** Also Negi's mother [[spoiler: Arika]]. [[JustifiedTrope Justified]] in that she was unjustly accused of a crime, and they didn't want Negi going off half-cocked to defend her reputation, so they didn't tell him about her at all.
** Konoka's mother is said to be a super skilled MagicKnight, but she is never seen. It's believed that Mrs. Konoe is WalkingTheEarth to hone her skills.
* [[spoiler:Suzuhara Shuuko]] in ''KidouTenshiAngelicLayer'' [[spoiler:is Misaki's long-gone mother, "busy with work" and defending her title as Angelic Layer champion.]] This is a spoiler for the manga, but is revealed early in the anime.
* Rumors flew during the first half of the ''Anime/{{Pokemon}}'' series' run that Ash's father was really Team Rocket's leader, Giovanni. This was discredited by canon in the [[VideoGameRemake updated remakes]] of the original games. A scientist at the end of the Rocket Warehouse mistook the main character (including the new female variation) for Giovanni's child, but then corrected himself, stating that said child has red hair. This seems to match the description of the rival from Gold, Silver, and Crystal.
** [[spoiler: The latest games confirm this. A flashback sequence shows the second generation rival (Silver) talking to his dad, Giovanni.]]
* Masaru's DisappearedDad in ''Anime/DigimonSavers'', Daimon Suguru, is second only to [[ScaryShinyGlasses Hitlermo -- er, Kurata]] on the list of "Characters Most Instrumental in Driving the Plot." Li Jiang-Yu from ''Anime/DigimonTamers'' may count -- very important to the backstory and, eventually, the plot, but not very mysterious and definitely not missing.
* In ''[[KenichiTheMightiestDisciple History's Strongest Disciple Kenichi]]'', [[spoiler: Miu]]'s father is[[spoiler: the leader of the organization of [[EvilMentor Evil Mentors]] YAMI]] and possible BigBad of the series. He is also directly responsible for [[spoiler: Miu]]'s MissingMom.
* Ken "The Eagle" Washio's DisappearedDad in ''Anime/ScienceNinjaTeamGatchaman'', [[spoiler:also known as [[SixthRanger Red Impulse]]]].
* In ''Franchise/OnePiece'', the main character Monkey D. Luffy's father is [[spoiler:Dragon the Revolutionary, the most wanted criminal in the world and the only one actively trying to bring down the [[TheGovernment World Government]].]]
** Also [[spoiler: Portgas D. Ace whose father was Gold Roger, not Dragon as previously believed. Garp adopted him, he goes by his mother's name, and he doesn't like his father because all the grief his heritage caused him, knowing that in the eyes of the world, he wasn't supposed to exist.]]
* Maka's mother in Manga/SoulEater is quite possibly being setup as something like this. Reportedly very skilled as a meister, former partner (and ex-wife) of the current Death Scythe, yet she has not turned up in any capacity - or had any significant references made - in the manga while Shibusen was dealing with Asura. The anime's Gecko Ending had her send Maka encouraging postcards from her trips around the world...rather than doing anything practical for her daughter or colleagues who were trying to prevent the end of the world. Maka idolises her mother, and from ''her'' comments about the woman she is clearly trying to emulate her as a successful, strong scythe meister.
* [[spoiler: Nube's father Jikuu]] in Manga/HellTeacherNube. We only find out about him in the manga; he doesn't appear in the anime.
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[[folder:Comics]]
* In ''ComicBook/TeenTitans'', ComicBook/{{Raven}}'s mother stayed away from her until she was about ten years old. Since her Father is an inter-dimensional Demon, he doesn't show up until [[spoiler: he's ready to use Raven as a portal to Earth]].
** Another Titan with parent issues, Roy Harper knows absolutely nothing about his mother. Literally nothing, other than he had to have had one. He knows his father died in a forest fire, but his mother was just never mentioned or never alluded to anywhere. The lack of information actually helped Roy break out of a LotusEaterMachine situation.
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[[folder:Films]]
* [[Franchise/StarWars Darth Vader]], most famously.
* Bootstrap Bill Turner in ''Franchise/PiratesOfTheCaribbean'', who manages to be vital to the plot of the first movie without actually appearing in it.
* In ''Film/{{Thor}}'' [[spoiler: Laufey turns out to be Loki's father]]. A variation since the latter didn't even know about his ParentalAbandonment.
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[[folder:Literature]]
* Tobias, in ''Literature/{{Animorphs}}'', when Elfangor, the Andalite who gave the kids the morphing cube, is revealed to be his father.
* In the ''HisDarkMaterials'' trilogy, [[spoiler:Lord Asriel and Mrs. Coulter are revealed to be Lyra's parents.]]
* Bria in ''Literature/TheLastDove''. Though there's never really any doubt from the beginning that she's [[spoiler: Queen Vasi]]'s daughter.
* Halt in ''RangersApprentice''; he's [[spoiler:heir to the throne of Clonmel]] and his brother is [[spoiler:the current king.]]
* Pansy Osmond from ''Literature/ThePortraitOfALady'' turns out to be [[spoiler: the product of an affair between her father and Serena Merle.]]
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[[folder:Live Action TV]]
* [[spoiler:The Evil Queen]] of ''TheTenthKingdom.''
* Claire Bennet from ''Series/{{Heroes}}''. [[spoiler:Her birth father is Nathan Petrelli.]]
** In the very first episode, Clara's father is perpetually on his way home from a business trip. TheReveal comes that this is the same man that has been menacing Mohinder Suresh throughout the episode and he plays himself to be a typical dad when he comes home. Not as much as a spoiler, but considering how ''Heroes'' loves the end-of-episode reveals, it's one of the first big reveals of the series.
* ''Series/{{Alias}}'' did this most famously with the season one finale, "Almost Thirty Years", in which TheMan walks into the room where Sydney Bristow has been tortured. Sydney raises her head weakly and says [[spoiler: "MOM?!"]]
* A ''Series/ThirtyRock'' episode in which Liz had a ''really'' bad day culminated with her boyfriend taking her to meet his "mother" on her deathbed. After he left the room, his "mother" confessed to Liz (mistaking her for his ex-wife) that she was actually his grandmother and his "sister" was his real mother. Then she promptly died.
* Claire on ''Series/{{Lost}}'': a throwaway line about her "daddy abandonment crap" in Season 1 is explained in Season 3 when her father turns out to be Christian Shephard, Jack's dad.
* Narrowly averted on ''Series/{{Battlestar Galactica|Reimagined}}'' when it was widely presumed that [[spoiler:the missing Number 7 Cylon, Daniel, was Kara Thrace's missing father until WordOfGod denied it.]]
* ''ThirdRockFromTheSun'', Dick Solomon's birth father is revealed to be [[spoiler: The Big Giant Head played by William Shatner. Knowing this, fans realized Dick was previously married to his cousin Janet]]. Also note that they have no blood relation to Sally, Tommy, or Harry, even though they pretend to be siblings.
* [[Series/{{Supernatural}} John Winchester]] probably counts. Until the end of Season One, he was busy investigating the secrets of Sam's identity as an evil ChosenOne, and he was basically hiding all of these secrets, as well as his whereabouts, from Sam and Dean (who were thus searching for their father without knowing why he was missing.
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[[folder:Video Games]]
* ''BaldursGate'': The main character's DisappearedDad [[spoiler:turns out to be Bhaal, God of Murder.]]
* Done twice in ''VideoGame/{{Disgaea|HourOfDarkness}}'', with both parents of [[Characters/DisgaeaHourOfDarkness Laharl]]. Laharl's father is [[spoiler:[[MidBoss Mid-Boss]], or rather the Dark Adonis, working behind the scenes to reunite the Netherworld and Celestia]], while his mother is [[spoiler:Big Sis Prinny, paying penance for the sin of taking her own life to save Laharl's.]]
* ''JadeEmpire'': One of the Lotus Assassins sent to kill Master Li's family couldn't bring himself to kill his infant child, [[spoiler: Dawn Star ? who ended up being raised by Master Li at his school in Two Rivers, neither even suspecting their relationship until they're told about it late in the game]].
* ''VisualNovel/AceAttorney'''s Kay Faraday [[spoiler: took up the thief's lifestyle after finding out that her dead father was the original Yatagarasu. She doesn't find out the [[CollectiveIdentity major twist]] until later.]]
* [[spoiler: Kratos]] of ''VideoGame/TalesOfSymphonia.''
* ''VideoGame/DragonQuestV'': TheHero's mother.
* Both of Ashley's parents take this role in the ''VideoGame/AnotherCode'' games. Her dad is this for the first game while her mom takes the second.
* Chris Hyde is this for Kyle in ''VisualNovel/LastWindow''. The primary objective is to find out about his OneLastJob and how it got him killed.
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[[folder:Web Comics]]
* Dr. Sciuridae in ''Webcomic/ElGoonishShive'', [[spoiler: who was forced to leave his 'granddaughter' Grace when the company behind Project Lycanthrope discovered that he had intentionally replaced the intended DNA source for Shade Tail with a sample of his [[ReplacementGoldfish deceased daughter's DNA]].]]
** Nobody knows who the hell Tedd's mom is, but something to do with her had a major impact on Tedd's life.
* Linda Walkerton in ''[[http://www.itswalky.com It's Walky!]]'', [[spoiler: who switched one of her twin children, Sal, at birth in an attempt to mislead Head Alien.]]
* Agatha in ''Webcomic/GirlGenius'' is revealed as the daughter of [[spoiler:Bill and Lucrezia Heterodyne]].
** Note: that accounts for [[spoiler: one of the MadScientist Heterodyne heirs, and Lucrezia Mongfish, the notorious villainess, is probably The Other.]]
** Gilgamesh grew up not knowing who his parents are. Readers still don't know about his mother, though [[WildMassGuessing there are plausible theories]].
* In ''Webcomic/GunnerkriggCourt'', there's clearly some big secret about Antimony's [[ParentalAbandonment missing parents]], but [[IsThatWhatHeToldYou no one's telling her anything]].
** Well, we know that Surma was [[spoiler:a famous medium, and now her nature and why she's dead and Anthony is absent]] is revealed. Annie was [[FreakOut pretty unhappy]] to have these details discovered in a less than nice way.
** Kat [[FlatEarthAtheist didn't believe in magic]] and never saw her mother using a computer, which made it a rather... ''interesting'' moment when Anja mentioned the [[{{Magitek}} magical machine]] she developed years ago.
* In ''{{Drowtales}}'' [[spoiler:Mel'arnach turns out to be the "father" of Kalki, with Snadhya'rune as the mother.]] Made possible with the Jaal'darya clan's OrganicTechnology / BioAugmentation.
* Played for laughs in ''Webcomic/TheOrderOfTheStick'' [[http://www.giantitp.com/comics/oots0723.html here]].
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[[folder:Web Original]]
* In the ''WhateleyUniverse'', She-Beast is now known to be the daughter of the notorious supervillain Dr. Diabolik. And she has a pretty darn good idea about her mother. It's not pretty.
** There's worse lurking around. Carmilla used to be Michael Waite, child of an unwed mother. The father eventually turns out to be [[spoiler:a very powerful demon of lust]] and his mother turns out to be [[spoiler: a descendant of Cthulhu who slowly turns into a Deep One.]]
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[[folder:Western Animation]]
* Franz Hopper in ''WesternAnimation/CodeLyoko''.
* [[spoiler:Morgana]], Roxy's mother, in ''WesternAnimation/WinxClub''.
* Brad Chiles and Judy Reeves, the real parents of Fred Jones in ''WesternAnimation/ScoobyDooMysteryIncorporated.'' Fred has gotten wise to their plans with the rest of the previous Mystery Inc. team to locate the cursed treasure of Crystal Cove and has disowned them.
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