Gai Daigoji of Martian Successor Nadesico, although he's quickly supplanted in skill by the less eager Akito. Akito's greater skill might be due to the fact that he trained throughout the series, and Gai dies in the third episode.
Noa Izumi from Patlabor yearned for joining the Special Vehicles Unit because she was such a Mecha Show fangirl her dream was piloting a giant robot, even if she knew Labors were not at all like Mazinger Z, Getter Robo or Mobile Suit Gundam. Still she got pretty disappointed when she was told that no, a Labor does not fly.
Edward from Cowboy Bebop is a fangirl of the eponymous bounty hunters...and becomes part of their group after she assists them with collecting a bounty.
Gun-otaku Kouta Hirano from Highschool of the Dead. He's actually very good at handling the weapons he gushes over, he just didn't expect to need these skills in real life in order to fight zombies. He is often told that some of the things he claims (like being trained by Blackwater USA during a trip to America) make him sound like a manga character.
One part of Blackwater's business is firearms and tactical training. All you have to do is pay a few thousand dollars and they'll teach anyone how to shoot military weapons like a professional. Many Japanese gun enthusiasts go on overseas trips just to go shoot guns, especially in Guam.
The manga Ratman revolves around an interesting subversion. The story takes place Twenty Minutes into the Future. Advances in technology have ushered in the era of superheroes. Shuto Katsuragi wants nothing more than to be a great superhero. But things don't go exactly as he planned, as he is kidnapped and tricked into becoming the world's first Anti-Hero.
The professor from the one-man-band short film Negadon The Monster From Mars (See it, if just for the CGI alone.) After accidentally killing his daughter during a test run, he squirrels away the giant robot Miroku after the army is embarrassed by the disaster and cancels the project. Though he doesn't want to ever use the robot again because of the terrible memories, it has been kept in prime working condition, and certainly a few of its abilities couldn't have been thought up(or approved) by stuffy PR-hound regulation-happy army generals so he most likely continued work on it on his own free time. When normal military hardware proves ineffective against Negadon, he brings out the mothballed mecha. Also he looks disturbingly similar to Otakon, only 30 years older.
The protagonist of Forbidden Kingdom fits the bill perfectly. Until he decides to go home.
Most of the cast of Digimon Tamers are Ascended Fanboys: Takato, Henry, Kazu, and Kenta were all fans of the Digimon TV show and games before finding out that Digimon were real, and Takato's partner Guilmon is his fanart come to life. Rika was also a card game champion, but her focus on winning and apathy toward everything else made her more of an obsessive player than an actual fan of the franchise. Juri who claimed to not like the card game but was a closet fangirl and even had very rare cards.
Aoba from Jinki Extend is an Ascended Fangirl who loves mecha anime and building models based on them... and ends up piloting a mech herself.
Heavily subverted in The Twelve Kingdoms, where the main character Youko's classmate Yuuka Sugimoto seems like one of these at first — it doesn't work out so well, she ends up working for the Big Bad, and eventually she learns An Aesop of some sort and goes back home.
Akio Suzuka in Koi Koi 7 was and still is a major Sentai fangirl. After the incident that gives her cyborgsuperpowers, this allows her a chance to be one of her heroes.
A rather disturbing version in Mobile Suit Gundam SEED: Clotho Bauer is a videogame nut and psychotic criminal who, along with Shani Andras and Orga Sabnak, was made a Psycho for HireTyke Bomb and Gundam pilot. Heck, Clotho even yells videogame quotes in the midst of battle!
Tragically played with in Mobile Suit Gundam SEED Destiny. Meer Campbell was a Naïve Everygirl who fangirled the Idol Singer Lacus Clyne and had a similar singing voice, so she often sang her songs. She was later scouted by Durandal's people, who offered her the chance to become Lacus's Body Double after she goes into retirement; Meer immediately accepted, thinking she could finally do something for the people who need Lacus's support... but as the series progressed, Meer developed *serious* mental and emotional issues, which later brought her her downfall.
Subverted by Gainer Sanga of Overman King Gainer. While Gainer is a huge fan of giant robot fighting games, he's only piloting a giant robot to save his friends who are going on Exodus, since he understands the difference between Real Life and a video game. It becomes a plot point when his video game rival turned Rival in real life, Cynthia Lane, doesn't understand the difference and is shocked when her fight with Gainer ends with Gainer injured.
In Yu-Gi-Oh! GX, Judai (Jaden in English) actually becomes excited when he learns that Shadow Games can make his favorite trading cards come alive when he plays with them, let alone when he learns he can save the world using his deck.
Deconstructed in 20th Century Boys. Kenji's childhood fantasies of evil alien invaders are used by a cult as the basis for taking over the world themselves, forcing him to step into the role of the hero he always saw himself as in the scenarios. It... doesn't work out too well.
In the "Shanghai Dragon" segment of the Genius Party(2007) anthology, a snot-nosed 5-year old outcast discovers a device that can make his doodles come to life. When alien invaders attack, he remembers his favorite Sentai tv series, but I won't spoil what happens next.
Renge from Ouran High School Host Club is a huge otaku who came to Ouran in the first place because Kyouya resembles a character from a dating sim that she obsesses over. She is a part of a romantic comedy, even if Kyouya's not her prince and she isn't the heroine, and she has a blast with the Host Club. Kirimi is too, in a way, despite being a little girl ("reversed harem," indeed).
In the Monster Rancher anime, the games exist in the show's version of Earth. Main character Genki is a big fan of the games, and when he gets a mysterious CD in the mail, he inserts it into his brand X, Playstation-like game console (a reference to the actual game in which you put in various various CDs to acquire the game's various mons), and the next thing he knows he ends up in the world of Monster Rancher where he travels with a girl named Holly and her assistant Suezo (one of the game's monsters) fighting baddies, and finding mystery discs that contain various monsters.
In Blassreiter, Malek becomes a tragic example when he becomes a Amalgam just like his racing champ hero, Gerd Frentzen.
Luffy's entire backstory is essentially him fanboying over Shanks, then deciding he's going to be even better than him and putting that into action. He is more likely to find his opponents' destructive powers of doom SOOOO COOL than to find it terrifying. In particular, he seems to like mechas and giant robots (a trait even his shadow-zombie Oz shared). In an ultimate ascended fanboy moment, Mr. 3 made him a wax battle suit so he could hit his poisonous opponent without ending up like he had when he'd tried punching the guy with bare fists. He practically cries from happiness at the opportunity.
Arc villain Hodi was a huge fan of Big Bad Arlong and the Sun Pirates when he was younger.
In a Real Life example, The Rootless, the band who created One Day, the 13th opening, wanted to do an opening for One Piece since they started.
Bartolomeo is not only sociopathic asshole may be worse than Eustass Kid, but also a massive fanboy of Luffy ever since Loguetown, having followed Luffy's journey from then on to Marineford before finally setting sail himself.
In Eureka Seven, Renton idolizes Holland and Gekkostate, and is thrilled when one of their members literally crash lands in his yard and he eventually gets to join them. Of course, this joy is short lived but eventually it gets better.
In Neon Genesis Evangelion, military otaku Kensuke Aida is convinced that mechas are the coolest thing EVAR and spends nearly the entire series expecting to become a pilot, even begging Shinji to pull some strings (despite the fact that Shinji has no influence whatsoever). He's never picked, of course — but his jock friend Toji, who strongly dislikes mechas and NERV, is.
In several video game adaptations and Alternate Universe manga, he does however get to become an Evangelion pilot.
Keima Katsuragi, though he hates it because real girls are inferior to 2D ones.
Later on, Elsie, who is a fan of the pop-idol Kanon, has to take her place when the real girl is put into a coma by Vintage. Luckily Elsie has a magic robe that can change her appearance and has memorized all of Kanon's songs and dances, but there are still a few...inconsistencies.
Elsie: It's a Nekumaru Hellcat! Game Show Host: Kanon, stop saying weird things!
Kirito from Sword Art Online. He was a gamer and after he got trapped in and escaped the virtual reality game SAO. The skills he learned from the game allowed him to beat up the guy that kidnapped his girlfriend.
Kotetsu T. Kaburagi/Wild Tiger from Tiger & Bunny was a superhero fanboy long before he actually became a superhero himself. When he's feeling down, he cheers himself up by old footage of his favorite hero, Mr. Legend.
Maho from Wandering Son is a major fan of the model Maiko. She eventually began working at the same modeling agency as her.
Subaru Nakajima of Magical Girl Lyrical Nanoha is the title character's Fangirl and pursued a career in the military so she could be like her idol someday. She ended up working with her on two major cases.
Hilariously averted in HeartCatch Pretty Cure!. While searching for the third Precure, young fairy Potpourri finds Ban, an inspiring manga artist the girls befriended earlier, in the middle of figuring out how his third Precure would act in his comics. Inspired by his devotion, Potpourri decides he would be the third Precure. However, when Ban starts imagining how it would be like, Potpourri panics and bolts as the image hits him.
Hiroko in AKB49 - Renai Kinshi Jourei is a huge fan of the idol group AKB48 and aspired to join them. The plot of the manga starts to kick off after she succeeded in passing the auditions to become a trainee member of AKB48.
The entire main cast of AKB0048 is this, as all of the understudies live up to and aspire to one day join the main team.
Tachimukai in Inazuma Eleven was originally a big fan of Endou, and even learned to be a goalkeeper by watching Endou on video repeatedly and mimicking him. He ends up as Endou's teammate and friend, and even gets to fill in for Endou as goalkeeper on several occasions.
Genki from Monster Rancher is a huge fan of the games and when he plays the prototype game, he gets sucked into the game itself, going on a quest and fighting alongside with the monsters.
Mahiro from Haiyore! Nyarko-san gets to experience the less-than-pleasant side of this since his "fandom" is the Cthulhu Mythos, meaning he now has to deal with Eldritch Abominations and other extra-dimensional weirdness, and his only defense is the Crawling Chaos Nyarlathotep — who just so happens to have fallen in Love at First Sight with him. While most guys would love to have a beautiful silver-haired Otaku girl throwing herself at them (in more ways than one), Mahiro's fully aware that "Nyarko" is really an insanity-inducing cosmic horror, which throws a good bit of cold water on any potential attraction.
Girls und Panzer's resident Genki GirlTankOtaku Yukari Akiyama gets to be a crew member of one of her school's tanks, more so one commanded by her idol, a descendant of a famous Tankery family. She also got to take command (albeit temporarily) of another tank.
In the final episodes of Bamboo Blade, Tama and Rin both achieve Promoted Fangirl status when they get to act in an episode of their favorite toku show, Blade Braver. They end up taking the position a little too excitedly and completely break away from the script.
They get small parts in the movie, in fact, and Tama derails it by instead of being a schoolgirl running scared from Rin's 'Shinaigirl' she picks up a dropped shinai and fights back. It goes on for a while before they're stopped.
The same thing happens to Seiji and his gang in Midori Days, when they get minor parts in a movie starring their favorite actor.
Several of the characters are like this, though of the more down-to-earth variety. The lot of them are college otaku, obsessed with video games, doujinshi, anime, and manga. As the story runs down to the end, one gets a job as a game designer, another as an assistant editor for a manga magazine, and a third as a manga author and artist. They are all, also, quite Genre Savvy.
Don't forget that costume-making king Tanaka is going to design school after graduation.
Meer Campbell from Gundam SEED Destiny was a big fan of Lacus Clyne who also happened to bear a very similar singing voice. Someone noticed, and asked her to be Lacus's replacement.
Aine Yukimura from Sensual Phrase wasn't exactly a fan of the Aucifer band, but she was a prospect song writer with rather... steamy song lyrics. By coincidence, Aucifer singer Sakuya caught a glimpse of them and had his band use these lyrics on-stage. From then on, Aine got hired as the official Aucifer songwriter and hooked up with Sakuya... too bad her dude is, well, ratherscrewedup, to say it politely.
Ayumi Sakagame of Pretty Cure All Stars New Stage was a slight fan of the Pretty Cures when fate decided to decree that she would become, even temporary, a Cure herself.
To a certain extent, Ragged Robin in Grant Morrison's The Invisibles, who essentially writes herself into the story using fan fiction. King Mob also comments on how he now gets to live the crazy science fiction/espionage adventures he always dreamed of as a kid. Considering it's no secret that King Mob is just a cooler version of Morrison...
Batman seems to attract ascended fans, despite his constant efforts to keep "amateurs" out of "my town." Many of his fellow Bat-Family crimefighters were not actively recruited or trained by him; rather, they became involved on their own and were absorbed into the larger Bat-Family afterwards.
Barbara Gordon, the original Batgirl (Not counting the Bat-Girl from the 50's and 60's), was dressing up in a costume for a Halloween party when she stumbled into crimefighting. Prior to this, she was either disinterested in costumed adventuring, or was planning to emulate different superheroes (Different continuities give different backstories, but most at least agree that, whatever her specific plans were, they did not involve bats). That first encounter earned her the label "Batgirl" and she was automatically associated with Batman in the public consciousness. Only her subsequent refusal to stop got Batman involved in training and working with her.
Tim Drake (the third Robin) also demonstrates this trope. In his origin story he deduces that Dick Grayson must be Robin because of a signature move they both use, spends several years of his childhood stalking and photographing Robin and Batman, and finally confronts Dick and then Bruce Wayne, insisting that "Batman needs a Robin." [Note: this only applies to the comic-book Tim Drake; the DCAU Tim Drake's backstory is modified from Jason Todd's.]
And the fourth Robin, Carrie Kelly, who gets the job as Robin after buying the costume and forcing Batman to let her help return Gotham to its former glory. Although Carrie's number is kinda messed up cause when Miller wrote her, Stephanie and Damian had never been Robins. So one could make an argument for her being the sixth Robin.
Batwoman also made the leap from unaffiliated hero to partner. She was already actively engaged in crimefighting on her own, explicitly emulating Batman's theme and code despite having never worked for, trained with, or been authorized by Batman. It was only after she had been patrolling Gotham City for several weeks that she encountered Nightwing and cooperated with him to combat the Religion of Crime. He later gave her a "real" Batarang as a gift, and afterwards she is shown working and sharing information with Batman.
Victor Mancha in Runaways was a huge superhero fan. It took the main cast storming his high school field to make him realize he actually had powers of his own. Subverted as he was programmed to be like that.
Prime of Ultra Force was a superhero fan who actually became a superhero.
Eddie Bloomberg was a fanboy of Blue Devil for most of that series, and even went as far as to create his own power suit so he could be Blue Devil's sidekick, Kid Devil. Eddie officially ascended years later when he was turned into a real devil and joined the Teen Titans.
As was Wally West, who dreamed of being like the Flash as a kid (helped along by a visitation from a future version of himself). Then, in an identical repetition of the accident which made Barry Allen the Flash whilst visiting his lab. And thus Kid Flash was born.
The first Professor Zoom is retconned as one of these Gone Horribly Wrong. Eobard Thawne was a fan of Barry Allen from the future who found ways to replicate his powers, costume, and appearance all with the intention of coming back to the past to run alongside Barry. It only goes wrong when he arrives after Barry's death when Wally has already taken over the role. Addled from time travel and the discovery that he will one day become Professor Zoom, he briefly deludes himself into thinking he is Barry and fools everyone else in the process.
Superboy-Prime is an odd example: a kid named Clark Kent who grew up reading DC Comics in the "real" world (or Earth-Prime, or whatever), turned out to have powers just like Superman (he was actually Supes's Alternate Universe doppelgänger the whole time), gets caught up in Crisis on Infinite Earths in what must have seemed like a Self-Insert Fic from his perspective, watches his universe die, goes insane, and turns into one of the most dangerous supervillains in The DCU. Phew. Taken a step further when he finally returns to his home universe, which is all he ever wanted from the beginning, only to learn that his loved ones have been reading about his actions in comic books and are now terrified of him.
In the Astro City story arc "Confessional", the future Altar Boy moves to Astro City with the intention of becoming a sidekick, working in a superhero bar and a private club for heroes as part of his goal. It eventually works for him.
Lampshaded when he gets attacked at the superhero club by a villain and defeats him in front of all the heroes. The other busboys then gang up on him, because they're all hoping to impress the heroes and become a sidekick, and he hadn't been working there as long as them.
Rodney Rabbit was a writer and artist for his Earth's DC Comics, particularly its top-selling superhero team title "Just'a Lotta Animals". After events are set into motion by visitors Superman and villain Starro the Conqueror, Rodney himself becomes a superhero and forms his own superhero team, the Zoo Crew.
Dan Dreiberg of Watchmen, a longtime supporter of the masked hero Nite Owl who, with the permission of the original, takes up the name and mantle when his hero retires.
To an extent, almost everyone in Spider-Girl's universe, including Mayday herself. Most of them aren't obsessive but they do tend to fangirl/boy their heroes/teams of choice.
Evil Version: Parker Robbins was a fan of Supervillains who later ended up becoming The Hood, one of the Big Bads of the Marvel Universe.
Squirrel Girl was an Avengers fan rejected for having the useless power of controlling squirrels. Then she ends up saving Iron Man and defeating Dr. Doom. That would be ascended enough, but then she goes on and beats Thanos, Terrax, Deadpool, Mandarin, and others. She's not only ascended, but made her way to the very top of the Marvel universe. She eventually got to (sort of) join the New Avengers as a nanny for Luke Cage and Jessica Jones' daughter.
Ironfist in Transformers: Last Stand of the Wreckers was a major fanboy of the Wreckers team, writing extensivly about them under the name "Fisitron". Then he got to join them for their mission to Garrus-9. This did not go well.
One of the primary plot points of the series 52 was the Lex Luthor Everyman Project, which could artificially grant superpowers to normal people. This led to countless citizens gaining superpowers and creating their own hero identities (including, in one Splash Panel that included over a dozen of these new heroes, the superhero Poledancer). Eventually, Luthor creates his own super-team populated by these heroes with Eliza Harmon, who idolized the Teen Titans and all things speed. When she became Trajectory and a member of Luthor's new Infinity, Inc. she never stopped hoping to eventually join the Titans, and dreamed of eventually becoming the new Kid Flash.
Prior to becoming Static, Virgil Hawkins was a massive comic book fanboy, and thus ends up being pretty Genre Savvy once he becomes a costumed hero. Aside from comic books, it's mentioned that he's a big fan of Pokémon as well.
Subverted by Spider-Man 2099, Miggy O'Hara may have been inspired to use spider DNA in Alchemax's super-soldier experiments from reading about the original Spider-Man, but he didn't intend to test it on himself, and isn't happy with the results.
Also subverted with Hulk 2099: there's a crackpot group called the Knights of the Banner who worship the original Hulk and plan on exposing themselves to gamma radiation. And then Jon Eisenhart, who couldn't care less about Bruce Banner, comes blundering in and gets the effects.
Played straight with The Punisher 2099, who was obsessed with Frank Castle's war journal, and Thor 2099, who was a Thorite priest.
In The New Warriors comic book, Hindsight Lad managed to track down the Warriors' secret HQ and blackmailed his way onto the team with his knowledge of several of their secret identities. He later earned a legitimate place on the team with his fact-finding skills. Much later, he betrayed the surviving Warriors by secretly leaking several of their identities to an already enraged public, out of a sense of betrayal. This lead to one former Warrior being beaten and hospitalized by an angry mob. (Why he felt betrayed or why he'd take such a drastic step to "get even" is never explained adequately. Or explained at all, for that matter.)
Kick-Ass. Practically every costumed character is a comic book fan.
The smartass artist-angel Rachael in the Neon Exodus Evangelion epilogue Apotheosis Now was based on (and named for) a popular Eyrie Productions forum member who died shortly before the story was completed.
Eidolon and Shift in DC Nation are superhero-obssessed fanboys who end up being able to put on a costume and fight evil themselves. Eidolon's encyclopediac knowledge of the superhero world is the closest thing he has to a superpower.
In The Halo/Mass EffectFusion Fic crossover The Last Spartan, Ashley Williams becomes this indirectly when she finds herself under the command of Master Chief (who's filling the role of Commander Shepard storywise). She intensely studied the history of the Spartans and their own battlefield tactics years before meeting him and is flustered into a stuttering mess during their first off-battlefield conversation.
Tsumugi Nikaido from Rhythmic Pretty Cure is a fan of Pretty Cure and has watched the series from its debut in 2004. Early on in episode 3, she goes on about her favourite canon character (who happens to be Mana Aida) and brings up her favourite Mana moment (specifically, "She laughs in the face of terror and despair!") in the process. Needless to say, in episode 2 she becomes a Pretty Cure herself, having Jumped at the Call shortly after her brother's ballet class got interrupted by one of the Nightmare Beauties.
A bizarre Metaexample in the Reading Rainbowverse is Scorched Flame. His own blog is not an in character RP blog, but his asks are consistently treated as coming from the same dragon to the point where said dragon has appeared onscreen multiple times.
The Incredibles: After Buddy Pine is rejected as a sidekick by Mr. Incredible, he becomes Syndrome, the Big Bad super-villain of the film. He proves to be frighteningly competent, largely from being Dangerously Genre Savvy, though this proves in part to be his undoing. Even as a supervillain, Syndrome continues to talk about Mr. Incredible as though he were a character in a favorite comic book, critiquing his actions in terms that will be very familiar to anybody who has ever been in a comic book store.
In Kung Fu Panda, Po only wants to see his heroes, the Furious Five, compete for the Dragon Scroll. He doesn't imagine that he will be chosen to receive it himself.
In the sequel, Po leads the Furious Five, along with Master Shifu and several other famous masters, into a glorious chage against the Big Bad's army of wolves. During the slow-mo leap, you can see his gleeful expression as he looks left and right. Even moreso, this is similar to his dream at the start of the first film.
Rhino the hamster from Bolt. To an even greater extent, Rhino's voice actor. Mark Walton, a storyboard artist, laid down a temporary "scratch voice" for the character of Rhino, with the assumption that a professional voice actor would later take the role. As the film moved further along, big-name actors were cast like John Travolta, Malcolm McDowell, and Miley Cyrus. But they couldn't find a professional actor who made a better Rhino than Walton; in the end, Disney ended up calling him back to record the lines professionally, resulting in one of the funniest breakout Disney characters of the decade.
Deconstructed by Hal/Titan in Megamind. He secretly despised Metro Man because he thought Roxanne was in love with him. When he gets his powers, he attempted to impress Roxanne but when rejected, went on a childish, selfish rampage.
In Epic The flower kid, who idolized Queen Tara and wants to be just like her, is chosen to be her heir when the pod blooms under the full moon.
Grub also joins the ranks of the Leafmen by the end of the film.
In a similar vein, Kevin Flynn from TRON. He was a video-game programmer who ran his own arcade, then gets zapped into the games themselves...
Flynn: I shouldn't have written all of those tank programs.
And then, in TRON: Legacy his son grows up with bedtime stories about the stuff his dad did on the other side of the screen, even having action figures of Tron and Clu on his bookshelf. Twenty years later....
A lampshade is hung on this to some extent in Galaxy Quest; early in the film, Tim Allen, as the star of a Star Trek-styled TV show, yells at an enthusiastic fan asking questions about minutiae of the show: "It's not real! None of it is real!" Later on, when it all turns out to be real, their lives are saved by calling on the fan's knowledge.
Brandon: I just wanted to tell you I thought a lot about what you said. But I want you to know that I'm not a complete brain case, okay? I understand completely that it's just a TV show. I know there's no beryllium sphere, no digital conveyor, no ship... Jason Nesmith:(at the same time) It's okay, now listen... Hold it... Just stop for a second! It's all real. Brandon: Oh my God, I knew it. I knew it! I knew it!
Also the entire Thermian race.
The unhappy main character in Takashi Miike's Sentai parody/homage Zebraman dresses up like the title hero of his favourite cancelled TV show as a form of escapism, but eventually does battle aliens.
In the film Rock Star, a passionate fanboy of fictional Heavy Metal band Steel Dragon becomes the group's new lead singer after the original lead singer is fired. The film is loosely based on the story of Tim "Ripper" Owens, who started out in a Judas Priest tribute band and went on to become the lead singer of Judas Priest when original singer Rob Halford took a hiatus from the band.
Mark Wahlberg characters act out this trope in at least two different movies — not only Rock Star, but also Invincible, in which a devoted Philadelphia Eagles fan Vince Papale tries out for the team and makes the roster. Not only that, both firms are based on real-life individuals.
In Rocky Balboa one of the announcers in the Rocky vs. Mason Dixon fight said he grew up as a Rocky fan and couldn't believe he was actually calling Rocky match.
Also, Rudy, Notre Dame's biggest fan becomes one of its most famous players, just on pure determination.
Woody Wilkins in Condorman deliberately sets out to bring fame to his eponymous comic book hero by attempting all the stunts he writes about in Real Life. He convinces his CIA buddy to let him take a "routine" courier mission and winds up involved in the defection of a KGB spy. In a variation of the usual trope, he is actually Wrong Genre Savvy, which is where the Hilarity Ensues.
In Streets of Fire, one of Ellen Aim's fans decides to tag along, even giving the heroes crucial information about the Bombers. Then Tom Cody kicks her out.
In Super, Frank/the Crimson Bolts's sidekick Libby/Boltie is a huge comicbook geek and wants to become a superhero because of it. Subverted with Frank who, despite becoming a superhero, has little knowledge or interest in comics.
In JCVD, three fans meet Jean-Claude Van Damme, who plays his own role.
In American Dreamer, thanks to Easy Amnesia, Cathy Palmer lives out a life like her favorite novel heroine, and even ends up with the author of those books.
The character of Tarrence Hill in My Name Is Nobody is a young gunslinger who wants to help his idol become the ultimate legend among the gunmen of the West, by ending his career in big style. He even calls himself Nobody, so it could always be said that he did all the great feats of his final months with help from Nobody, and Nobody by his side. And that Nobody was able to kill him in a duel because Nobody can draw faster than him.
Like the comic that spawned it, Kick-Ass is built on this trope.
Benjamin in Hansel And Gretel Witch Hunters, starts as a fan of Hansel and Gretel and collected all their newspaper articles, has a lot of witch data and his dream is to be a witch hunter like them. He gets his chance to help.
Mark Wahlberg's character in Rock Star plays a singer in a Steel Dragon cover band who is hired to sing for his idols when the lead singer of the original band quits. This was inspired by the real-life case of Tim "Ripper" Owens (see the "Music" section above).
Walter in The Muppets is a Muppet fan who becomes the newest member of the gang.
Guy Fleegman, who played a Red Shirt in the show during its original run, is essentially this as well.
Grady in Tremors 2 is a fan-boy of Earl's, who talks his way into helping on that film's Graboid-hunt.
Irony had the last laugh on Commander Sam Vimes and Havelock Vetinari in the Discworld book Thud!!. Obstructive Bureaucrat A.E. Pessimal was sent by Lord Vetinari to inspect Vimes' operations, and neither man knew Pessimal had always wanted to join the City Watch. Vimes eventually got sick of Pessimal and made him tag along to quell a potential riot, thinking it would make him see things from Vimes's point of view and shut him up. Ironically, Pessimal took to the opportunity once the shell-shock wore off, and after a display of sheer balls (trying to attack a rioting troll with his teeth!) that shocked Vimes and even the usually unflappable Vetinari, Vimes decided to poach Pessimal from Vetinari, and the Ascended Fanboy got to live his dream (and do his original job simultaneously).
Possibly the oldest fictional example is that Don Quixote, though rather than waiting for the Call to Adventure to come to him, he took a much more proactive approach to living out his chivalric fantasies.
"Lord Elminster! Old Mage! Make magic for us, please! Please! A dragon flying. Only a little one, just for us!" [...]"Nay, be not downcast, Jhaleen. I see some things, know ye, in my dreams. Things I know will come to pass, in summers still to come." He leaned close to her, and whispered for her ears alone, "I've seen thee — much taller than now, and stern — riding a dragon." She looked into his eyes and saw truth, and her mouth dropped open in awe and trembled just a little in fear. It is one thing to dream of dragons, and quite another to know with cold certainty that someday you will be touching one. More than that; flying high above the ground on a dragon's scaly back, with empty air as high as castles beneath you, and a twisted death below should you fall.
Also the campers from The Resistance, who are Star Trek fans on their yearly camp out to look for aliens or something.
Not to mention Erek.
Sam Yaeger from Harry Turtledove's World War series starts out as a minor league ballplayer whose best days are behind him far too early. Then his love of pulp science fiction magazines really comes in handy when aliens invade, allowing him to be open-minded enough to easily deal with captured aliens and learn about their race. He eventually becomes one of the most important parts of the war effort.
In Harry Potter there is Colin Creevey who, Ron says, is likely to create a "Harry Potter fan club". For most of the story, he's not involved in anything other than the D.A. lessons. In book 7, however, he fights in the Battle of Hogwarts despite being underage, and dies.
The Alphas from The Dresden Files were RPG enthusiasts and college students before they were taught how to become werewolves; now, they're one of the forces that makes sure Chicago stays safe for mortals. In a partial subversion, upon becoming werewolves, most of them went for "tough guy/gal" leather ensembles... only for them to a) look slightly ridiculous and b) turn out to be massively impractical when the time to shapeshift came about.
Fredric Brown's story "What Mad Universe" is about a fiction writer who reads a letter from fan. Then, a strange explosion occurs in front of him... And he is transported to an Alternate Universe where said fan is literally the Mary Sue.
Wild Cards character Kid Dinosaur was a fan of "Aces" and nuts about dinosaurs. Then he caught the Wild Card Virus, the manifestation of which is often influenced by the subconscious of its victim. You can guess from his name what happened next.
In Earthweb by Marc Stiegler, Earth Defense sponsors an arcade game simulating the fight against the planet-bombing Shivas to find new minds fit to lead the real thing.
Abraham Van Helsing in the original Dracula novel is either this or Retired Badass, depending on how one reads the hints in his backstory. A "metaphysician and philsopher" who has spent a good chunk of his life gathering arcane knowledge on vampires, then throws himself enthusiastically at the chance to put that knowledge to practical use.
Catherine Morland believes herself to be this in Northanger Abbey when the huge Gothic novel fan gets a chance to stay in a Gothic mansion. It turns out she's actually Wrong Genre Savvy.
R. J. Rummel's Never Again series of novels features a rather dark version of this trope. The main character, John Banks (who is an obvious stand-in for Rummel) is a professor of twentieth-century history who gets selected as one of two people to travel to the early part of that century. The dark twist is that Banks studies wars and crimes against humanity, and volunteered to go back in time in order to prevent those events from happening.
Tash Arranda of Galaxy of Fear was fascinated by and idolized the then-extinct Jedi Order, reading everything about it that got past or around The Empire's censorship. She later found that like the Jedi, she was Force-Sensitive, and while in the series she struggles with her talents, years after it is concluded she becomes part of Luke Skywalker's Jedi Order.
Deconstructed in the Warrior Cats spinoff storyline SkyClan and the Stranger. Sol's mother always got him and his siblings to behave by telling them stories of the Sky Warriors, which were the SkyClan cats from the days before the Clan was destroyed. Sol always loved the stories of the Sky Warriors. When his mom left him at the home of a crazy cat lady, he wished that he could become a Sky Warrior, because he thought that if he did, she would come back. After he grew up, he learned that SkyClan had been rebuilt, and wanted nothing more than to become one of its members. Leafstar, SkyClan's leader, let him join, but no matter how much he tried he didn't have what it took. She promised that she would let him become a warrior after he had proved himself, but Sol, fueled by his dreams from kithood, was impatient. To try to become a SkyClan warrior faster, he kidnapped Leafstar's kits, planning to "find" them after she realized they were missing and become a warrior because of it. Leafstar caught him however, and exiled him, realizing that he had none of the qualities of a true warrior. Because of this, Sol turned against the Clans, and vowed to destroy their Code Of Honor to prove that it was worthless. Or maybe not, as it was subtly hinted that Sol lied about his past to get Leafstar to pity him.
Joel in the Doctor Who New Adventures novels Return of the Living Dad and The Room With No Doors, both by Kate Orman, is a sci fi geek and fan of Professor X (the Show Within a Show with suspicious similarities to Doctor Who) who travelled back in time and found himself helping at a halfway house for stranded aliens and the like. At one point he compares himself to the gamer in panel two of the What's New? strip referenced above.
Lucy Pennykettle from The Last Dragon Chronicles. Totally. Give her a chance to talk about any topic related to dragons (or squirrels) and she'll harp on for hours.
Before getting hired at Black Arts, You's Matt had devoured just about everything related to their games. Nowadays he's a member of the production team and the company's unofficial lorekeeper.
Hiro Nakamura of Heroes has been a comic book junkie for years when he discovers he has superpowers of his own. It's a bit of a surprise he hasn't put together his own costume yet. He certainly wants to. He also always wanted to be his childhood hero Takezo Kensei and kiss the princess he saves. He got the chance in season 2. Hiro is also a literalAscended Fanboy, according to his father:
Kaito: I have waited a long time for a Nakamura to ascend.
Lt. Col. Mitchell from Stargate SG-1 can be considered such and is sometimes actually referred to as Lt. Col. Fanboy in fannish circles. He has memorized all their mission reports and will occasionally recite passages at top speed. He is known to have had the dream of joining SG-1 to learn from them, but was instead given leadership of said team after being shot down saving their lives, and Major General Jack O'Neill, the original leader of SG-1, promising Mitchell any command he wants if he's successful in his physical therapy. Double subverted in that when Lt. Col. Mitchell first received command of SG-1 he merely inherited the group's name and its TO&E, all the original members which he idolized had moved on to other things at that point. He managed to convince most of them to come back though. Which is probably why the other SG-1 members didn't mind him taking over the team (not that Jackson or Teal'c, being non-military, could've been put in command anyway, and Lt. Col. Carter didn't return to the team until months after Mitchell arrived). In addition, the job isn't quite perfect as Daniel and Teal'c are often annoyed by his relative inexperience. Said inexperience has also led to him receiving more than his fair share of scaths during his time on the team.
Justin from Power Rangers Turbo can certainly qualify, especially considering his response to gaining the mantle of the Blue Turbo Ranger. Mack from Operation Overdrive might be a more pronounced example, with his specific love of adventure books and sneaking off with the morpher intended for his Adventurer Archaeologist father. Dustin from Ninja Storm is a less pronounced example; he's a comic book fan whose reaction to receiving the power was "I Knew It! Power Rangers are real!" but motocross is still his major interest.
There's more. Computer/sci-fi geek Ethan from Dino Thunder looked about to faint when he found out he'd be a Ranger, and Mystic Force's Chip has been shown to be a fan of superheroes and fantasy. The main Jungle FuryPower Trio also had big grins on their faces (or at least Theo did) when their mentor brought up the Rangers, just before they were presented with their own morphers. Subverted in SPD, where fanboy Boom is almost the only one who doesn't get a morpher at some point.
Detective Kate Beckett in Castle is a (closet) fan of the mystery novels of Richard Castle, who as a result of their 'partnership' has found herself the basis for Detective Nikki Heat, the protagonist of his latest novels.
By later seasons, Beckett is his girlfriend, so she has definitely taken it to the next level.
Macy on Jonas is Jonas's biggest fan and runs their fan club. And luckily she goes to school with them and is best friends with their stylist. As a result she goes from acting like a buffoon around them to becoming one of their closest friends.
In the Doctor Who Easter 2009 Special, "Planet of the Dead", Malcolm comes off as one of these — even applying for the job as UNIT's Scientific Adviser because he knew it was the position held by the Doctor way back when. He nearly dies of sheer bliss when he merely gets to talk to The Doctor over the phone.
Ser Alton Lannister of Game of Thrones is a huge fan of Ser Jaime Lannister. He states that the one day he squired for Jaime was the best day of his life. Jaime in turn confesses to Alton he's an Ascended Fanboy of Old Master Ser Barristan Selmy.
JAG: Last season addition Lieutenant Catherine Graves is a fan of crime and mystery novels. Even though she is not a lawyer, being savvy of those genres turns out to be quite useful on several occasions.
On Las Vegas, a fan of Wayne Newton who recently lost his job was invited to come up and sing along with him. He proved so adept at it, he was made a Wayne Newton cover singer in the same hotel.
Perhaps the ultimate music example was at the opening concert of The Who's Quadrophenia tour. After playing 70 minutes into the set, Keith Moon passed out (and then a half hour later, after being revived, passed out once more). So the story goes, after playing through one more song without Moon, Pete Townsend famously asked, "Can anybody play the drums?" Enter one Scot Halpin, age 19 who had not played the drums in over a year but got up on stage at his friends' insistence. He finished up the show with them, competently playing three numbers before taking a bow with the band and being taken backstage and given a Who concert jacket (which was unfortunately stolen later that night).
Electric Light Orchestra's lead singer and Face of the Band Jeff Lynne conceived the band's idea with Roy Wood to be a sort of sequel to The Beatles, taking rock music in the direction "that The Beatles had left off." He later worked with former Beatles members on various projects, including The Traveling Wilburys and producing the "Threetles"note the nickname given to The Beatles minus John Lennon, who went back into the studio together for The Beatles Anthology to record a few new singles singles "Free as a Bird" and "Real Love".
After the death of original Red Hot Chili Peppers guitarist Hillel Slovak, the band auditioned new guitarists until they discovered John Frusciante, a teenager who knew how to play every single one of their songs and was quite skilled on his own. He joined the band and was an integral member for many years before leaving to work on his solo career. Today, he is hailed as one of the greatest guitarists in the history of music.
30 Seconds to Mars' guitarist Tomo Milicevic was a fan of the band before joining up and got the job due to his talent...and due to camping out on Jared Leto's lawn for a whole week. He was also the main person responsible for updating the band's website during "A Beautiful Lie"'s album cycle.
When Bob Weir and Phil Lesh of the Grateful Dead reunited to form Furthur, the latest post-Jerry Garcia Dead project, in 2009, they recruited longtime Deadhead John Kadlecik on lead guitar. To be fair, by this point JK had already becaome fairly well known in jam band circles with his own band Dark Star Orchestra. Given the fact that DSO is a Grateful Dead tribute band, it fits the trope.
Trevor Horn and Geoff Downes, a/k/a/ The Buggles of "Video Killed The Radio Star", were huge fans of Yes. They sent a demo of one of their songs to Yes' management in 1979, hoping the band would record it. The band loved The Buggles' album The Age Of Plastic and the song the group sent to them. Unbeknownst to Horn and Downes, vocalist Jon Anderson and keyboardist Rick Wakeman had left the band, and they recruited Horn and Downes to join Yes for 1980's Drama album. Horn would later produce (or co-produce) the band's 90125 and Big Generator albums, along with 2011's Fly From Here.
Fly From Here itself would feature an Ascended Fanboy in the form of Benoit David, a Jon Anderson-soundalike (and lookalike) Canadian member of a Yes tribute band. The album would feature the song The Buggles sent to Yes to record, expended into a lengthy epic, and would mark the return of Horn (as producer and guest vocalist) and Downes (as keyboardist), ironically enough replacing Anderson and Wakeman for the second time! :)
In-Universe example with the Foreigner song Jukebox Hero, which is about a kid who is inspired to become a rock star after sneaking into a concert.
In the fictional universe of the Tenacious D television series and movie, Lee is one of these. That may be the case in real life as well.
Travis Touchdown of No More Heroes. "MOE~" In the second game, Travis meets his own Ascended Fan, Kimmy Howell.
Subverted with Otacon, a lonely Otaku who is determined to become one of these by building himself a real life Humongous Mecha like in the anime he loved — of course, it turns out that the mecha is going to be a new type of nuclear weapons platform and he'd let his desire to live in fiction overshadow his logic. And then it's Double Subverted when Otacon ends up becoming the sidekick of an action hero-esque soldier and ends up living the otaku fantasy after all.
Shingo Yabuki from The King of Fighters idolized Kyo Kusanagi so much that he vigorously trained so that he could join him in the titular tournament. While he may never shoot fire (somebody apparently never told him that Kusanagi powers are hereditary), he was strong enough to win a few tournaments and survive against Riot of the Blood Iori.
Sakura Kasugano from Street Fighter trained to catch up to her idol Ryu, and eventually fought him. She was even able to use the Hadoken, an impressive feat for a martial arts student with no training partner. Scarily enough, in one comic continuity before she started fangirling Ryu, Sakura was a huge fan of E. Honda, the sumo wrestler, and training to be like him. Including lamenting just how much weight she still had to gain. She still respects Honda, as shown in her Sub Boss fight with him in Alpha 3... just not so much.
Inverted in Disgaea 3: Absence of Justice. Almaz is a descended fanboy after his hero-idolizing tendencies gave him the wonderfully suicidal idea that he should follow in legendary hero Aurum's footsteps and go slay the Overlord of the Netherworld. No more than a couple of chapters later, he's now unwillingly serving as the lab rat of the Overlord's son, and wondering what the hell he was thinking. There's also the fact that the "hero" in question is actually the Big Bad of the game.
Alex from Lunar: Silver Star Story Complete, who is a worshipper of the Dragonmaster Dyne, is a textbook example of this trope as he gets to be the dragonmaster and save the girl and the world.
Between the 9th and 10th games, Kieran (the most patriotic character in the series, including the ones who fall under My Country, Right or Wrong) is promoted to 2nd in command of the Royal Knights (one of Criema's highest military positions).
In the fourth game, one of the substitute characters is a pegasus knight named Femina. The girl had been raised hearing stories about the amazing knight Sigurd and his companion Ferry; she doesn't get to work with her idols since they're dead, but becomes one of the companions of Sigurd's son Celice.
The Engine 001 action RPG Voyage for Vengeance has a man in one of the cities who loves Shadowrun so much that he started his own shadow running organization which the player can eventually work for.
Cloud Strife from Final Fantasy VII: He starts out as a fan of the legendary Sephiroth who goes out to join the same organisation of SuperSoldiers, doesn't even make it to said organisation and spends a lot of time delusionally thinking he did, and somehow ends up leading the only group that can save the world from a now even more powerful Sephiroth.
According to the Ultimania guide, as a child Seifer Almasy from Final Fantasy VIII saw a movie about a knight protecting a sorceress, which inspired both his "romantic dream" of becoming a sorceress's knight and his decision to train with the gunblade. The hero of the movie was played by Laguna Loire, the father of Seifer's rival Squall Leonhart.
Morgan LeFlay from Tales of Monkey Island has apparently been following the career of Guybrush Threepwood, Mighty Pirate, since he first defeated LeChuck, and is honored to cross swords with her idol.
She clearly wants more than just "cross swords" with him. Unfortunately for her, Guybrush is devoted to Elaine and is completely oblivious to Morgan's advances.
Liberty Lad from Freedom Force starts off as an obnoxious Loony Fan that follows the heroes around and needs to be protected in a quasi-escort mission. Eventually he ends up taking a bullet for his hero that possesses superhuman endurance and is largely immune to bullets, gets a magical operation, and turns into Liberty Lad.
Stephanie Morgan of Backyard Sports says in the original Backyard Baseball that she wants to be in the hall of fame next to Cal Ripken Jr. In the 2001 version, Morgan and Ripken are both playable, so you can make this happen yourself.
Jann Lee from Dead or Alive. He's that good and arrogant in using his Jeet Kune Do because when he was little, he used to watch Bruce Lee movies all the time as a mean to escape the harsh reality of being bullied by the locals for being a weakling. He Took a Level in Badass as a result.
Mass Effect 2 has Legion, a geth who is implied to look up to Shepard; it used a piece of his / her old armor for field repair to its platform, and becomes kind of evasive if you ask why. Compare to Conrad Verner.
Kasumi as well. Cerberus tried to find her and when she found out, she did some investigating to find out they have Shepard brought Back from the Dead, and from there she offered a fee, introduced herself to Shepard as a fan, left the emotional baggage other crew members have behind and only asked that Shepard consider helping her on a heist to recover her lover's greybox.
Left 4 Dead Zoey is fan of zombie apocalypse films, now she faces of a real zombie apocalypse.
Raz, the protagonist of Psychonauts, basically memorized all of the in-universe True Psychic Tales comics before getting a chance to actually become a Psychonaut.
Goombario from the first Paper Mario introduces himself as Mario's number one fan. He joins Mario in his quest as his first partner.
According to the collector's edition strategy guide for Fallout: New Vegas, there are hints of this for the young Caesar. He starts out a fan of comic books (he may mention the Grognak the Barbarian series in-game), action/adventure, and history, which culminates in finding texts on the nitty-gritty of the Roman Empire: "Such adventure! And intrigue! And cool uniforms!" He proceeds to swipe it whole-cloth for his own would-be empire.
9-volt and 18-volt from WarioWare are the biggest Nintendo fanboys, making Nintendo microgames and owning everything Nintendo worked on. And 9-volt was working for Wario untill DIY for unknown reasons and 18-volt still works for him.
The player Loganius from Champions Online with his character Duratok Gorehowl. He won an official costume contest and his price was being made an official character. Players can now buy a "Sidekick Device" that summons an NPC Duratok to your side for the duration of one hour.
Luke Triton, in the Professor Layton games, is a variant on the trope. In Unwound Future, he remarks that he's a big fan of the Sherlock Holmes stories and has read them all many times... which makes his role as The Watson to the Professor's Holmes all the more fitting.
Eddie: Y'know, I haven't mentioned it yet but this place is nuts!
In the Grand Theft Auto V mission "Meltdown", Jimmy, a hardcore fan of FPS games, gets to live one out when he saves Michael's life and then teabags the guy who tried to kill him. Only it turns out that, since Jimmy couldn't see what he was doing in the darkened hall, he was actually teabagging Michael.
In the Future GPX Cyber FormulaPlayStation game, Seiichirou Shiba is a huge fan of Hayato as a young boy and he watches him win 10th GP finals and the championship. Years later he becomes a racer, joins the secondary team of Hayato's team and competes in a race with him.
Thoroughly deconstructed in Fans!, where all of the heroes (and several of the villains) were of this type. It was most poignantly subverted with a character actually known in-story as Tim the Fanboy, who had become a fan of the previous heroic fans, only to turn on them when he felt they had let him down.
Parson Gotti from Erfworld is sucked into the title universe at a typically ironic moment (right after saying "See if I could, like, literally escape into one of these games, I'd do it in a second. Just snap my fingers and teleport right in? Absolutely. Bam! Seeya!"). This occurs with the memorable sound effect, "PLOT!"
The Gamer: Han is an Ordinary High-School Student who loves RPGs and wakes up one day to find that his life has become an RPG Mechanics Verse, in which he can see everyone's stats and levels, and he can also tangibly increase both his strength and knowledge by performing menial tasks and grinding. Things become even more exciting for him later on when he finds out that there are other people out there with strange powers who often do battle.
MegaTokyo's Piro (the character, not the author avatar) is an Ascended Fanboy: he is currently dating the idolized voice actress of a character in one of the Dating Sims he's a fan of. He's also doing the art for the game now. Her fans actually hail him as an Ascended Fanboy at one point, electing him as their leader. Piro seems in equal parts terrified, sickened and proud, not least because their excesses are no worse than what he would have done in their position.
Ultra-fanboy Eizo gets many encounters with his idols in the band Orochi thanks to his friendship with Yumi, leading up to him flying with the band to Hawaii for the wedding of Shuya and Musashi and even sharing a hotel room with the band members... albeit drooling and tied up to keep him under control.
Yumi herself goes from knowing nothing about visual kei, to adoring Orochi's music, to dating the drummer. Quite an ascension!
Quentyn of Tales of the Questor started out as a fan of the wonder-tales about the legendary Questors, before becoming a Questor himself. He even at one point uses his fan knowledge to find a way to defeat a plague of wights.
El Goonish Shive has Dex, the most unkempt regular of Justin's comic shop. Upon waking up at the place he can't remember visiting and in a rather strange company he found himself in a "familiar" environment:
Dex: A furry... A black mage... And... haven't I seen you cosplaying as Chun-Li?
Sage Freehaven became one in Las Lindas and became the cannon love interest to the lepord woman with the biggest breasts in the comic.
MegaTokyo's Piro, an American otaku with a special fixation on the Dating Sim, ends up dating (on-and-off) a seiyuu who sometimes works in them.
And it looks like he might be set up as an artist for the same Dating Sim game she's voice acting in.
Red Panda Adventures has Kit Baxter starting out as a fan and his chauffeur, than blackmailed her way into becoming his sidekick, and now his wife
MSF High Forum: Matoi Nanashi, a massive fan of Super Sentai and Kamen Rider is shaping up to be this. He even has gained a pair of boots that allow him to perform a Rider Kick (though none of his attempts at using it on someone have succeeded so far).
Stereo, Phono and Minijack, the appropriately named FanBoyz, are the three biggest fans of the Legion of Extraordinary Dancers, a group their classmates are sure doesn't exist. They post dance videos of themselves on the internet in an effort to get the LXD's attention, hoping to join them. Imagine their surprise when they each recive an invitation to join.
Paolo emailed Harvey Morenstein asking for advice on how to do his own epic meal. The cast and crew of Epic Meal Time road-tripped to his location and cooked with him.
Several current contributors on That Guy with the Glasses were fans of the show before they were picked up, even being inspired to make their own reviews after finding the site.
On the video game music podcast Nitro Game Injection, Suraida, the newest co-host, was originally a dedicated listener. She ended up being invited onto the show for episode #142 to fill in for one of the other hosts, returning for a few more episodes before popular demand from fans led her to becoming a semi-regular co-host.
Mega-Girl of the Whateley Universe is a lifetime New Yorker (her father is a cop) who is a huge fan of the Empire City Guard, the city's top superhero group. Once she turns fourteen and gets superpowers (she's a major Flying Brick) she lobbies constantly for them to let her join up. In the Whateley Universe, it's illegal for people to superhero before they turn eighteen, so right now she's just a huge headache for the Empire City Guard.
This is basically the entire premise of Futurama. A lot of humor in the early episodes drew on Fry's expectations of the future as a sci-fi fanboy and how much the actual future either did or did not fit them.
Phineas and Ferb has Irving, a clear fan boy expy who seems to have perfect knowledge of the two brothers adventures and catchphrases... to the point that one must ask how the hell he could possibly know so much about the show's history. He started as a one-off character but is starting to appear almost as much as Phineas and Ferb's other friends. It's been extended to the point that it's been revealed he's had hidden cameras all over Danville, chronicling their adventures, including the first one.
In Teen Titans, the meta-tastic villain Control Freak is the Titans' self-proclaimed Number One Fan. He is a caricature of the stereotypical lank-haired, overweight geek, complete with overfondness for lightsabers and trenchcoats. One of his two feature episodes is chock-full of fandom references, up to and including online ship-wars. Control Freak is also tremendously disappointed in one of these episodes to discover that the Titans East (a group of C-listers he's never even heard of before) are substituting for the "real" Titans while they're away on a long-term mission, and thus the gadgets he'd designed specifically to challenge the Titans were wasted. As the Titans East have completely different powers, he escapes and comes up with new weapons to fight them... and becomes a fanboy of the Titans East as well once they defeat him.
He also becomes disappointed when he finds out that the Teen Titans don't even consider him an actual villain when he discovers their list of villains and doesn't find himself listed, but instead finds The Puppet King's name- a villain they had only encountered once.
In Codename: Kids Next Door, Numbuh 3 is an Ascended Fangirl. For the entire series she is obsessed with a range of multiple-hued stuffed monkeys called "Rainbow Monkeys". During the Series Finale it is revealed she becomes president of the entire Rainbow Monkey Corporation.
Static and Gear in Static Shock are this; they are comic book geeks and get really excited when they finally meet the Justice League and get to visit the JL tower. They never really planned on becoming superheroes themselves until Static got his powers. Gear gives him the idea of becoming a superhero, and it's pretty much all for fun for the two of them until the Special Episodes. Gear wishes he had powers after a while, then figures out two seasons later that he had had them all this time, they just weren't as flashy as Static's. He immediately joins Static in fighting crime.
Batman himself is revealed to be one in Batman: The Animated Series episode "Beware The Gray Ghost". As a kid, Bruce used to watch episodes of the superhero TV series called The Gray Ghost with his father, and this was an influence on his decision to become a superhero. Batman reveals this to the actor who played Gray Ghost (voiced by Adam West), who expresses relief that the show did some good in the world.
Simon Trent:(amazed) So... it wasn't all for nothing.
Blue Beetle is another example. He idolizes Batman and most of the other superheroes he comes across, and takes photos of the JLA Satellite after being inducted into the Justice League.
Princess Morbucks from The Powerpuff Girls was a huge fan of the Powerpuffs who was jealous that they wouldn't let her join their group. She responded by using her money to get her own suit built with the same powers, and became a super-villain dedicated to defeating the Powerpuff Girls. She's been a pretty formidable opponent in some episodes.
This is the entire concept of the 80s cartoon series Captain N: The Game Master. Kevin Keene was a huge Nintendo gamer when he gets sucked into his TV while playing Mike Tyson's Punch-Out!!. He finds out that he is the hero for Video Land and he works alongside some of his favorite game legends, like Kid Icarus, Simon Belmont, Link, Bayou Billy, and Mega Man.
In Extreme Ghostbusters, Garrett was a die-hard fan of the originals, which was why he signed up for Egon's class. Roland also qualifies. Being a techie, he was quite fascinated by Ecto-1 and their hardware in general. And then they suddenly become the Ghostbusters themselves....
Kylie is perhaps a bigger fan than any of her teammates, loving anything about the supernatural and being a Hero-Worshipper to Egon Spengler, so much so that she was accused of being Hot for Teacher in an early episode. Really, the only person in the whole team that wasn't a fanboy of sorts is Eduardo who took Egon's class because he thought it was an easy grade.
An episode of South Park featured Kenny playing a video game, only to find out the game was created by angels so they could find out who would be the best person in the world at leading their army against Satan.
Enzo of ReBoot is a textbook example, being obsessed with the guardians, and Bob in particular. He is given the basic Guardian protocols by Bob before the Season 2 ending. However in the comic after Season 4 he is now a Cadet with his very own Gadget Watch.
Impulse in Young Justice comes across as a massive superhero fanboy, though his demeanor is at least partly meant to hide the fact that he comes from a Bad Future where most of Earth's superheroes are supposedly dead.
In The Simpsons episode "Once Upon a Time in Springfield", the actress who plays Princess Penelope is shown to have been a lifelong fan of Krusty and the two then have a romantic relationship.
This is the ultimate goal of Rainbow Dash in My Little Pony: Friendship Is Magic. She idolizes the pegasus stunt flyer group the Wonderbolts and aspires above all else to join them.
Booster from Buzz Lightyear of Star Command. In the pilot movie, he starts as being the janitor of Star Command's headquarters station and a major fan of the Space Rangers (Buzz especially), and is studying the manual so that one day he can take and pass the Academy entrance exam. Due to various hijinx, he ends up with Buzz and new ranger Mira Nova on Planet Z and helps them thwart Evil Emperor Zurg's scheme, leading to him being made a Space Ranger himself.
In "The Front", an episode of The Simpsons, Bart and Lisa co-write a fan script for an Itchy & Scratchy episode (using Grandpa Simpson as an alias) and end up getting picked up as regular writers, at least until Grandpa grows wise to what kind of show Itchy & Scratchy really is and quits.
Mikey from Kappa Mikey is one of these. He won a contest or something, and moved to Japan to be part of that show.