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Merlin Sickness

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"Ah, but I was so much older then,
I'm younger than that now."
Bob Dylan, "My Back Pages"

Characters with Merlin Sickness live or age backwards in time. What happens to their memory is highly variable; some options include:

  • The character remembers the past, but ages backwards (so they remember what happened when they were "older").
  • The character remembers the future, and is exceedingly confusing. This can be a form of Cursed with Awesome—it allows the character to serve as a seer, but if taken seriously more or less precludes them from developing much of a connection with anyone (as just about any event carries the opposite sort of emotional resonance for them as for anyone else). Sometimes a character like this may come off as a Mad Oracle or The Cassandra.
  • The character remembers the past, but remembers successively less of it as they get younger. Usually this occurs when Merlin Sickness is contracted partway through life, while the other two options are more associated with characters who are "born" (that is to say, who die) with it.

Merlin Sickness is generally associated with fantasy and softer sci-fi.

When used as a framing device, see Back to Front.

Not to be confused with Fountain of Youth, where a character is aged backwards instantly and more drastically. Compare with Non-Linear Character. Contrast Unstuck in Time. Often runs in tandem with Time-Travel Romance.


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    Anime and Manga 
  • Viktor from Chronos Ruler suffers from this. Demons named horologues feed off humans' time, making them younger until they usually vanish, but Viktor managed to survive by having a time covenant relic lodged in the wound the horologue gave him. As a result, he gets younger by a day every day, and slowly loses his memories, so he resorts to using a diary to keep them intact. By the time the series starts, he looks like a teenager no older than his son. The two of them team up to find the horologue who attacked him, so his lost time can be restored. They also come across a young girl who claims to be Viktor's wife who suffered the same fate, aside from memory loss.
  • In the manga version of Dokkoida?!, the enemy Sweet Pea is like this.
  • This is what happens to Walter in Hellsing, after becoming an artificial vampire. Because the surgery was rushed, he's constantly deteriorating and can't properly regenerate; instead, his body "heals" damage by morphing itself into a healthy but younger form.
  • A minor Chess Pieces in MÄR uses a set of darkness arms that give her the ability to paralyze opponents and then inflict pain on them through a Voodoo Doll, but they have the side effect of causing her to age backwards whenever she uses them. The previous owner was a baby when she met him, and he regressed into nothing immediately after passing the arms to her.
  • In PandoraHearts, Jack Vessalius is afflicted with this as a result of the Abyss rejecting his corrupted soul and excluding him from the hundred-year cycle of rebirth. His body is cursed to perpetually age up to twenty-four years, his age at the Tragedy of Sablier, when his soul was rejected, and then regress back to infancy. Additionally, each time he completes this cycle, a piece of what's left of his soul is destroyed, essentially making him a sociopath by the time he first appears in the story. To make matters even worse, Oz now inhabits Jack's body, effectively dooming him to the same fate unless he can find a way out of it.
  • Played for Drama in Sakuranbo Syndrome, where young college student Rena Amami suffers from a strange disease that causes her to regress in age. In three months, she goes from being 19 years old to looking like a middle schooler. The only thing that can stop the disease from making her younger is, strangely enough, being kissed regularly by a young man named Munenori Agawa. This leads to a lot of conflict and drama between the two of them and Agawa's girlfriend.
  • Part of the price Ganossa Maximilian from Silent Möbius paid for power in his deal with Nemesis in addition to his soul was to have his "time" taken from him, which made him younger as time progressed. Ultimately, everything he did in the series was due to his desire to have his "time" returned to him, even though he knew it would mean his own death. The power he received was nothing compared to being able to live and die as a normal person.
  • In Yu-Gi-Oh! 5Ds, Torunka, who is better known as the Dark Sage (the 1000 years older form of the Dark Magician), is cursed by Zeman the Ape King with the Minus Curse, resulting that he becomes younger when the time progresses. When Torunka meets Ruca, he's already a small child and still gets younger. He reverts back to his old age after Zeman is killed by Regulus.
  • Kurama gets hit with a weaponized version of this in the Dark Tournament arc of YuYu Hakusho. The gas takes him to childhood, then infancy, then pre-natal, and then shifts him to his previous incarnation, Youko Kurama, who proceeds to torture the man who did this for information as to how.
  • Lin-Fa in the manga Zombie Fairy. She's from a race of people that age extremely slowly anyway, but became dismayed when the first tiny sign of aging really showed up (a single wrinkle). Her friend tried to help by casting a spell on her, unfortunately -permanently- reversing the aging process. By the time the manga starts, Lin-Fa has regressed from being a full-grown adult into the series' Token Mini-Moe.

    Comic Books 
  • 80 Jours, a Belgian bande dessinée by Nicolas Vadot and Olivier Guéret. A rich 80-year-old man, nursed at home, begins to grow a year younger every day without explanation. He "dies" with his nurse watching over him until the end, after having had an affair together halfway. The Distant Finale shows her giving birth to a boy named after him.
  • This happened to Lois Lane in The Cry-Baby of Metropolis. Lois is worried about her wrinkles and steps into a youth machine even after Superman told her not to touch anything. After it seemingly doesn't work she sees the professor demonstrate that this trope is in effect with a chicken test subject (which turns into an egg and will soon turn into nothingness) and that only Superman's X-Ray Vision can reverse the process. The next day this happens to Lois too and as she gets younger, not wanting Superman to be angry at her for her disobedience, she tries several times to trick Superman into use his X-Ray Vision on her. But every time, Superman uses some other method to fulfill Lois's request, like "super mathematics" to count the jelly beans in a jar. When Lois is a baby, she gives up, but she is unable to admit to Superman because when she tries to talk it comes out as Baby Language. Superman takes her to Lana Lang's house to take care of her, which of course makes her angry. Eventually Superman admits that he knew what Lois did the whole time and was just screwing with her to teach her a lesson. And the X-Ray Vision actually doesn't have any effect, it was also just Superman and the professor screwing with her. Superman subsequently humiliates Lois by bottle-feeding her the antidote, in front of Lana. Superdickery had a field day with this one.
  • In the comic Invincible, Monster Girl is really thirty years old but ages in reverse every time she uses her superpower to turn into a monster thanks to a curse on her. She's unfortunately reduced to about a ten-year-old body by this point. Eventually, Robot manages to figure out a way around it, though it still takes centuries in another dimension to return to adulthood.
  • The vampires and other undead of the French graphic novel series Requiem Vampire Knight age in reverse in the world of Resurrection.
  • A minor Marvel villain called Drom the Backwards Man has this problem. His solution? Drain the Life Energy of others to arrest his de-aging.
  • Another minor Marvel character was a fur bikini-wearing spear-wielding warrior called Spat, who physically looks about 14. According to her partner Grovel, she's aging in reverse due to some mysterious incident that Gambit was involved in.
  • One Sabrina the Teenage Witch story starts with Merlin- yes, that Merlin - visiting the Spellman family. Rather than the traditional wizard Whitebeard look, this Merlin resembles a young man, an appearance he explains with this trope.
  • Spider-Man: In The Amazing Spider-Man (1963) #73-75, the villain Silvermane (with the help of Doctor Connors/The Lizard) decodes a tablet that has the secret to eternal youth on it. Silvermane makes the potion and drinks it. However, in a cruel twist of fate, he promptly becomes a teenager, then a child, then an infant, then dies. Until he returns.
  • Adam One in Paul Cornell's Stormwatch (2011) was an old man at the beginning of the universe, and ages both backwards and very slowly. He currently looks like he's in his thirties. (As revealed in Demon Knights he's also actually Merlin).
  • EC Comics's Tales From the Crypt: In "A-Corny Story", a man who was fired for being too old sends his youth-obsessed boss a hexed oak tree. As the tree ages backwards, so does its owner... until the tree has ended up as an acorn and the boss has de-aged out of existence.
  • One of Alan Moore's Tharg's Future Shocks strips, titled "The Reversible Man", was about a man aging backwards: he started lying in the street undying of a heart attack, got better, he started a job and got demoted until he was the teaboy, his kids moved into his house and finally vanished (would have been more unpleasant for their mother), split up with his wife, moved home, went to school to forget things... Bonus points for a dramatic birth.
  • The daughter of Sally Floyd, Minnie, who appeared in flashback in the Generation M X-Men mini series was a mutant whose power was backwards aging at normal speed. It manifested at about the age of two, and before the age of five she had regressed past the point when not even the incubators and life support in the maternity ward could keep her alive. To pile on the tragedy, this was a few months before the Decimation event that depowered over 99% of the earth's mutants.

    Fan Works 
  • Professor Moriarty experiences reverse-aging in Children of Time — falling through two temporal rifts really messes with your anatomy. By the time he appears in the series, he's been aging in reverse for twenty-five years, and he's willing to freeze Time over to keep himself from getting any younger.
  • in the Discworld's version of Arthurian legend as parodied by A.A. Pessimal, the wizard Marvin (or Mervyn orsomething that sounds like that, you can never get it with Llamedosian names), schemes that reverse aging is best enhanced with magical potions, such as applying "Ephebian MM". Ephebian MM is a powerful spell creating an unguent that turns formerly grey hair back to a rich youthful brown. Marvin, or Mervin, gets his come-uppance from a young Witch called Nimue. Nimue Weatherwax, that is.
  • In the Kingdom Hearts fanfic "Dear Sora", which chronicles Kairi and Lea training under Merlin, the wizard himself mentions that he "experiences time differently". Later on, Lea explains this comment more to Kairi, elaborating on the fact that Merlin ages backward and therefore remembers the future. During said explanation, Lea does not shirk the Mind Screw implications of Merlin's attribute, and Kairi herself wonders if it explains Merlin's often odd mannerisms.
  • In the Mork & Mindy fanfic Mork and Mindy's Twenty-Fifth Anniversary, Mork's backward aging becomes part of the plot given that he keeps looking younger as Mindy is growing older.
  • In No Charm Equal, after Harry starts to become mortal again, he deages from appearing to be in his fifties to appearing to be about thirty.
  • OSMU: Fanfiction Friction: Basil Valentine seeks to find out the secret as to how Odd Squad agents go through Proportional Aging, being decades, centuries, or even millennia old despite looking like children, and forces Todd to tell him it. The reason he wishes to find out the secret is so he can stop himself from aging backwards and eventually disappearing forever. His current state is that of a five-year-old boy, who is so small that both Ambrosia and Nectar, his two henchwomen, can carry him on their shoulders with ease.
  • Reversion: A semi-open secret is that Miles Prower suffers this, aging backwards in time from his previous adult incarnation. In a twist on how they usually met, Miles was the one who adopted a child Sonic, only later contracting the disease after exposure to an artifact from Little Planet. Tragically the younger Tails becomes, the more his memories of the past fade as his neural pathways rework themselves, forcing Sonic to adopt the "Older Brother" role he is better known for. A big part of the story set in the present is Sonic and others having to come to terms with Tails potentially disappearing from their lives when the disease runs it's course.

    Film — Live-Action 
  • According to Clarence, angels age in reverse. Which might explain a few things about the greeting card portrayals...
  • The Curious Case of Benjamin Button, where it is milked for every ounce of romantic tension and general drama they can wring out of it, with the titular character suffering from it and his love interest having to ultimately care for him when he's reduced to childhood... with the additional tragedy that he's suffering from dementia.
  • In the Chinese film League of Gods (based on the novel Fengshen Yanyi), the fox demon Daji curses Jiang Jiya with a spell that makes him younger whenever he uses his magic. At the end of the movie, he has regressed into being a baby.
  • One of the leads in the Japanese movie My Tomorrow Your Yesterday has a variation of this. Because Emi's timeline moves in the opposite direction relative to Takatoshi's, her memories are of his future, but she doesn't share any of his memories. To get around this, she has a notebook containing the details of each day in their relationship, which was written on his last day (which would be her first).
  • Subverted in an Imagine Spot in The Secret Life of Walter Mitty, where Mitty claims to have the disease Benjamin Button had, but has never seen the film: he becomes a proper old man the size of an infant.

  • This is a bad ending that awaits you and an alien (?) pal in Choose Your Own Adventure book UFO 54-40. The book is at least merciful enough not to carry it to its expected end (it stops when said companion is carried away in an incubator), and comments your only hope is that you'll be born again sometime in the future so your life will start again.

  • Alice's Adventures in Wonderland: The White Queen from Through the Looking-Glass remembers the future because she is "living backwards". This has the strange effect of having her imprison a man before he commits a crime, effectively causing a Time Paradox. She doesn't care, though; she's The Ditz.
  • Swedish author Per Nilsson's novel Baklängeslivet ("the backwards life") starts with the protagonist as an old man at a retirement home. Divine agents Soneson and Anderson (compare the Swedish word ande = spirit) explain to him that there's been a mistake and he'll have to live his life backwards, until he's young enough to go "home to mother, and into her."
  • In Charlie and the Great Glass Elevator, Charlie's grandparents consume pills that take twenty years off your life a pop. Grandma Georgina takes too much, so Wonka has to spray her with a reversal of that. Then more youth pills. As she de-ages, she remembers being present at the news of the Titanic's sinking, then Lincoln being shot...
  • The main character in Andrew Sean Greer's The Confessions of Max Tivoli is born looking like an elderly man and ages backward to childhood.
  • The title character in F. Scott Fitzgerald's short story "The Curious Case of Benjamin Button" suffers from a strange illness that makes him younger as he ages.
  • In Dave Duncan's novel The Cursed, there's a disease that gives those that survive it one of several different kinds of supernatural abilities, all of which tend to be far more trouble than they're worth. One of these is the ability to remember the future but not the past. They can change the future by doing something that contradicts their memories, but if they do, they lose the ability to remember anything at all, leaving them with the mind of a newborn infant.
  • Discworld:
    • Trolls believe they live their lives backwards, basing this on the fact that "the past is in front of you, so you can see it, while the future is behind you and therefore invisible." This is the Real Life viewpoint of at least one American Indian nation: the Ho'chunk (known to outsiders, for some reason, as the Winnebago).
    • The Discworld is also home to reannual plants, which are planted next year and harvested this year. Forgetting to plant them causes a Time Paradox, and is very embarrassing. Drinking wines made from these plants results in a hangover hangunder the day before.
    • The Pork Futures Warehouse, which is home to pork yet unborn traveling backwards in time, gaining reality every day.
  • Herne in the Doctor Who New Adventures novel Cat's Cradle: Witch Mark. When they "first" meet, he warns the Doctor that in the future he's going to blame the Doctor for his condition, but he doesn't any more.
  • In Elsewhere, this is how the afterlife works; you start at the age you were at death, then age backwards until you are sent back to Earth as a baby to be reincarnated.
  • Hyperion Cantos:
    • After an encounter on Hyperion when she's in her mid-20s, Rachel Weintraub starts aging backward, growing younger every day, and each night she loses two days' worth of memories, for a net loss of a day. Each morning when she wakes, she finds that "yesterday was years ago," until finally she asks her father to stop reminding her.
    • Hyperion actually played with the concept of temporal disruption quite frequently. There were multiple characters, including several impaled on metal trees , and entire pyramids traveling backward through time. To say nothing of the Shrike.
  • Chronos, the Anthropomorphic Personification of Time from the Incarnations of Immortality series. Each holder of the office, when chosen, begins living backwards in time, temporarily going forward to communicate with others, until the day of their birth/conception, when they have to choose a successor/predecessor.
  • The Knight Life Series uses the Once and Future King type. Merlin is an 8-year-old child in the modern day but remembers the past. This is explained as being the result of a spell he cast on himself; apparently, children have more magical power than adults, and he wants to be a child when he has the knowledge to take advantage of this.
  • Manifold: Space briefly features sentient lunar flowers. They even proliferate backwards, with seed pods converging until eventually there's only one plant left. It's... odd.
  • In Fritz Leiber's short story "The Man Who Never Grew Young", this happens to everyone — except the immortal title character — and history itself runs backwards.
  • Provos from Piers Anthony's first two Mode books remembers the future but not the past; in fact, everyone from the Mode or planet or whatever she's from is like that.
  • In Monday Begins on Saturday, the director of the Scientific Research Institute of Sorcery and Wizardry, Janus Poluektovich Nevstruev, is known to be one man with two bodies (Janus-A and Janus-U, respectively). Janus-U is visibly older than Janus-A, and there are subtle personality differences, but for the most part they are identical. No-one really understands what this means, until the characters learn that Janus-U is Janus-A, who began living backwards through time as the result of a magical experiment at some point in the future. Oh, and the book also has a parrot with Merlin Sickness.
  • In The Once and Future King, Merlyn remembers the future, and as such serves as partial excuse for the book's Anachronism Stew. More recent adaptations of Arthurian legend often use this detail in some form. Pay enough attention to The Sword in the Stone and a pretty powerful effect of this comes into play when Wart (Arthur) meets Merlyn for the first time. After Merlyn has figured out that it really is the first time they've met, tears come to his eyes for no apparent reason. It's not elaborated on as such, but if you think about it, Merlyn just realized that from his perspective, this is the very last time he and Arthur will ever see each other.
  • At the end of the Red Dwarf novel Better Than Life, Lister — who has become an old man due to Time Dilation — is left in the backwards universe with the intent that the others will do the time dilation thing again, and pick him up when he's back in his twenties. At this point the universe splits in two. In The Last Human, this works as planned. In Backwards, the retrieval goes wrong, and leaves the Dwarfers trapped on Backwards Earth for another ten years, by which point Lister and Cat are teenagers.
  • Macros the Black from The Riftwar Cycle is another who remembers the future instead of the past. Though he was born and aged normally until he stopped aging. He inherited this immortality from his father, hinted to be the Wandering Jew. At least until it was revealed in a later novel that he makes up Multiple-Choice Past stories for his own amusement and his true story is totally different.
  • Rivers of London:
    • DCI Thomas Nightingale was born in 1900, and began aging in reverse in the 1970s. His memory is unaffected, and no one including Nightingale has the first idea why it's happening.
    • In book 4, Broken Homes, we meet former Soviet Night Witch Varvara Tamonina, who was born in the 1920s and began reverse-aging in the late '60s.
    • A moment on the author's website implies that Tamonina and Nightingale actually began reverse-aging on the same date, August Bank Holiday 1966, and that although Tamonina realized something was happening immediately, it took Nightingale much longer to truly acknowledge or realize that it was happening.
  • In Roadmarks, there are creatures who appear on the Roadnote  as old humans, live so long they forget their past and slowly keep getting younger. When they are killed they become dragons, but it's never mentioned how young they may get if they live long enough. Their children age normally, but at least some of them become dragons when killed. The Road may or may not have been created solely as a playground for those infant dragons. Figuring this all out is central to the plot.
  • The Squire's Tales uses this not for Merlin but for the hermit Trevisant. He ages normally but remembers less of the past and more of the future as time goes by, until at his death he sees only the future. Later in the series it's revealed that he wasn't born that way; he voluntarily had a spell cast on him so he could forget a traumatic event in his past.
  • Time's Arrow by Martin Amis is written from the perspective of a separate consciousness living inside the mind of a dying German Holocaust doctor, telling his life backwards.
  • The novel Turnabout by Margaret Peterson Haddix is about two girls who, as old women, underwent an experimental treatment which caused them to age backwards, losing their memories as they go: at each birthday aging in reverse, they lose all memories of that year of age.
  • For a very old example, see Roman "historian" (they had different standards) Claudius Aelianus' Varia Historia. The island Anostus has trees that, among other things, produce fruit that makes the eater age backwards until (s)he dies as a newborn.
  • Wayward Children: Ms. Lundy purchases eternal childhood to exploit a loophole in a magical world's rules. The treatment makes her age in reverse at a one-quarter rate, ensuring she'll spend the rest of her life a child. Then she's kicked out for rule-breaking anyway.

    Live-Action TV 
  • Andromeda: One episode has a villain with this (who also looks like Sauron).
  • Best Friends Whenever: This happens to Shelby and Cyd when they travel back to kindergarten in "When Shelby Met Cyd".
  • Buck Rogers in the 25th Century has a one-off appearance by a golden-skinned race who age backwards. They have the intrinsic power to transmute elements, but this weakens as they age (i.e., become more childlike).
  • Doctor Who:
    • The Doctor was originally played by a fifty-five-year-old actor who looked somewhat older. Their incarnations gradually got younger-looking from them on, with Matt Smith being the youngest to date. The casting of fifty-five-year-old Peter Capaldi seems to have brought things full circle. Very appropriate, given that in-series the Doctor is scheduled to be Merlin at some point.note 
    • The Doctor and River Song's relationship has elements of this — they keep meeting in the wrong order, so that the first time the Doctor meets her, she has known him for years. Almost every time he sees her after that, she knows less and less about him, although the pattern isn't absolute. There's a reason they have to co-ordinate their diaries. Even stranger when River is "first" introduced to the Doctor in "Let's Kill Hitler" (from her perspective). She outright says that she'll age herself backwards, just to mess with people's heads (a fourth-wall-knocking joke about the fact we meet River as she becomes successively younger, but Alex Kingston is getting older).
  • A throwaway Continuity Nod in Eureka reveals that this happened to Walter after his accident in the pilot, letting him be The Nth Doctor for his next appearance.
  • Golden Years centers around a janitor at a research lab who begins to undergo this after an explosion.
  • Avoided with the titular character in Merlin (2008), though there are hints that this might be the case for the character of Taliesin.
  • All the members of Mork's species from Mork & Mindy age backwards. The original lampshading was that it happened this way so the children would be treated with respect from day one, and the elderly would be cute and cuddly, thus more likely to be willingly cared for.
  • The Outer Limits (1995): In "Last Supper", a scientist is tracking down an immortal woman so that he can use her blood to reverse his aging. When he finally catches up with her, he vastly overestimates the required dosage, and ends up a damp stain on the rug.
  • The Red Dwarf episode "Backwards" is set in a backwards universe. Kryten and Rimmer become a magic act for doing things forwards; there is a "bar-room tidy".
  • This happens to a whole universe in the Sliders episode "As Time Goes By". The sliders experience time in waves of semi-normality with backwards jumps in between, like a skipping record. Unfortunately, Quinn's attempt to prevent a tragedy leads to a paradox that probably destroys that world eventually.
  • Mike's cousin in Spaced, apparently.
  • Star Trek:
    • Star Trek: The Next Generation:
      • In "Too Short a Season", Admiral Jameson needs to engage in negotiations with rebels, so he takes a lot of a reverse-aging drug to be youthful and strong for the talks. The drug reverses him to around age 25 (he's over 60) but causes him immense pain and physical trauma, as his organs cannot take the strain. He eventually dies as a result of the drug.
      • The series finale has a non-living example. An anti-time anomaly is created when the Enterprise uses the same Phlebotinum Wave in three separate points in time. The anomaly becomes larger in the past until it eventually consumes a large chunk of the galaxy, preventing life on Earth from getting past the primordial soup. Fortunately, Picard fixes it, as he should; he caused it to happen, courtesy of Q's meddling.
    • Star Trek: Voyager:
      • Kes gets this briefly in "Before and After" when she finds herself traveling backwards through time from the point of her death to her birth and even conception. Unfortunately, it happens even faster than her normal aging, which is already pretty fast.
      • Tuvok also encounters a race of beings who (unbeknownst to him and the audience) become cute little cherubs as they grow old, which — coupled with a serious case of alien Alzheimer's — renders them indistinguishable from the children of practically any other species you'd care to name.

  • The song Start with the Ending by David Wilcox is about Merlin Sickness, and how it would make more sense to live backwards than forwards.
  • P.D.Q. Bach (1807-1742?).
  • ASP's Sack und Asche:
    Heute bist du schon ein Junge,
    gestern warst du noch zu alt.
    • Translation:
    Today you already are a boy
    Yesterday you still were too old

  • Some cosmologists suggested in the past that in an universe that was contracting to end in a Big Crunch, this would happen (the current understanding is that in such an Universe time would keep going forward). Curiously enough, people living in such a place would find it as completely normal and what is for us the norm would be considered by them as time going backwards.

  • One of The Hitchhiker's Guide to the Galaxy (1978) radio plays contains a throwaway joke about a race of beings called the Hrarf-Hrarf that begin life old, age backwards, and culminate their lives with the exciting event of being born. While other creatures have midlife crises, these creatures have midlife celebrations. They also enjoy a hangover, because they know that it will soon be followed by a fabulous evening of drinking.
  • On The Ricky Gervais Show, one of Karl Pilkington's examples of something he would consider a worthwhile scientific achievement was an injection that would make this happen to people (proposed as an improvement on the "theory" that people should a kid inside them that would emerge fully formed at the moment they died). As ever, he had to have it explained to him that these are not workable ideas.
    Karl: Forget it, then, we'll leave it as it is.

    Tabletop Games 

    Video Games 
  • The 7th Guest has a particular area of Stauf's mansion where one of the elder guests wished to be young again. She got that wish...and so much more.
  • Issyl, the Lotus Clan Dean of the college of time, in Battle Realms. He ages slowly backwards due to a magical mishap 70 years ago and is currently twelve years old physically.
  • Flashbacks in Disgaea 4 of Valvatorez during his Tyrant days show that, not only has abstinence from blood depleted his powers, but is also reducing his physical maturity.
  • The plot for EMIT, a Visual Novel trilogy on the Super Famicom, dealt with a parallel universe where time flowed contrary to our own; thus, anyone traveling from there to our world would begin to age backwards. But, since the whole thing was just a framing device for an English-language tutoring system, it didn't get explored in much depth.
  • Ehrgeiz: Lee Shuwen was the master of lethal kempo, only needing to strike his target once. He was murdered via poison ages ago, but a powerful elixir brought him Back from the Dead. Unfortunately, he's now aging backwards (which can be seen in the intro as his graying hair regains color), which will eventually kill him again. He seeks out the legendary item in the ruins as a way to obtain a cure for this curse.
  • In The Elder Scrolls series, Orgnum, the King of the Maormer (Sea Elves), is said to be an "immortal wizard". Not only is he said to be immortal, he supposedly appears more youthful with each passing year. (The Altmer, Arch Enemies to the Maormer, claim that Orgnum is not actually immortal and uses "foul" magics and sacrifices in order to maintain his youth.)
  • Honkai Impact 3rd: Mobius has an ability to resurrect herself after death, but each time she does it her body becomes younger.
  • Moshi Monsters has a species of Moshlings, the Baby Tumteedums. Apparently they age in reverse, so baby ones are really hundreds of years old.
  • The Nasuverse Merlin has this going on, though it doesn't manifest much, since he's pretty much immortal and therefore looks perpetually like a young man. It's suggested that this is also the reason for his exceptional Clairvoyance, since it allows him to see anything in the present, as opposed to the past or future.
  • One of the main characters of the online puzzle story Planetarium is a girl who has foresight but not hindsight. This means that she can see the future but forgets it as soon as it comes to pass. Later on, she is cured of this ability at the same time her mathemagician friend is cursed to travel backwards in time in a slightly different variant of this trope.

  • Darths & Droids: The GM reveals that the rathar/Sarlacc is a four-dimensional creature who move backwards through time, so the one in Han's backstory is older than the same one encountered years later in The Jedi Reloaded and The Forced-Away Kin.
  • In this Overcompensating strip, Weedmaster P gets hit with a Gypsy Curse and ages from a "monster truck wreck" victim all the way back to sex cells inside of two Faces of Death fans.
    Jeffrey: It's a living!
  • The dread pirate Locke from Ozy and Millie. He has a normal memory. At the time of the comics, he's a child. He's also Millie's father, and remembers doing some "really icky things" about ten years ago. Interestingly, the subject of what happens when he reaches the youngest possible point is touched upon- it turns out that, rather than "turning into a zygote, then disappearing", he swings around and ages the other way. It was never clarified in-comic, but Word of God states that when he starts aging forward and becomes too old to live, he'll start aging backwards again, in an infinite loop, though the writer never stated he is actually immortal.
  • This xkcd, strip which talks about what happens when T. H. White's version of Merlin watches Memento.

    Web Original 

    Western Animation 
  • Codename: Kids Next Door: In the episode "Operation: F.O.U.N.T.A.I.N.". Sector V races against the Delightful Children From Down The Lane as they uncover Leaky Leona's secret fountain located somewhere under one of the girls' bathrooms in the school. Leaky Leona also threatens to spray its water towards anyone who goes near the fountain, but it is eventually destroyed.
  • Duck Dodgers: In "Duck Codgers", Dodgers and the Cadet get sprayed with a gas that causes them to grow older, but makes Martians age in reverse, like X-2.
  • A few years back, there was an animated short on the Disney Channel called Flip-Flopped that featured an entire world of people like this. It was considered to be perfectly normal. There's a rumor going around that it's being considered for a series.
  • In the Futurama episode "Teenage Mutant Leela's Hurdles", the result of youth tar is compounded when bacteria meant to eat it instead spread it throughout their bodies and continually making them younger. As Farnsworth put it "We'll face a Fate Worse than Death: pre-life. Then death." They reverse this with a fountain of aging.
  • In one episode of The Grim Adventures of Billy & Mandy, Billy, Mandy, Grim, and Irwin all age backwards when Billy turns the hourglasses representing their lives upside down. They're unable to turn them back in time, and go from babies, to fetuses, to nothing.
  • The Seven Little Monsters episode "Dinner for Breakfast" has the monsters wish for everything to be opposite when they're upset that Mama insists they go to bed when they're watching TV late at night. After observing various bizarre changes (such as eating burgers for breakfast and pancakes for dinner as well as seeing fish fly in the sky), the monsters are eventually persuaded to wish things back to normal when they notice they're aging backwards and have become little children.
  • Star Trek: The Animated Series: Happens to the crew when they get stuck in an Alternate Universe with different physical laws in "The Counter-Clock Incident".
    • The non-canon first captain of the Enterprise, Robert April, was on-board, on his way to his retirement ceremony. Due to the reverse aging, Kirk and company revert to children and April has to assume command of the Enterprise.
  • Happens to Lion-O in the ThunderCats (1985) episode "Time Switch" after he is accidentally exposed to gasses from one of the ThunderCats' old suspension capsules, which causes him to start aging backwards. Despite knowing the risks involved, the other ThunderCats decide they should take Lion-O to the Cave of Time and put him in there until he regains his normal age.

Alternative Title(s): Backwards Aging, Younger As I Get Older