Trivia / Adventure Time

Trivia tropes pertaining to Adventure Time:

  • Actor Allusion:
  • Actor-Shared Background: Hynden Walch and Princess Bubblegum have both learned to speak fluent German.
  • Adored by the Network: The show was this back in the day. It was very much adored along with Regular Show and, to a lesser extent, The Amazing World of Gumball. It would eventually be surpassed by the latter of the three as the network's favorite, and would eventually be dethroned completely by Teen Titans Go!, to the point that, as of October 2015, zero Adventure Time re-runs are on the schedule, meaning the only places the series can be watched are video on-demand, on the official Cartoon Network app, on the DVD and Blu-Ray releases, and on YouTube (if the copyright police haven't taken down the episodes yet). Fortunately, re-runs finally returned on October 25, 2015 in the lead-up to the seventh season. It used to air on Saturday evenings as part of a block called Regular Time Adventure Show (which features new episodes and reruns of Adventure Time and Regular Show) on March 5, 2016, but now, as of May 5, 2016, has moved back to Thursdays.
  • All-Star Cast: Let's see, in various episodes we have Donald Glover, Andy Samberg, John DiMaggio, Jonathan Frakes, Levar Burton, Wallace Shawn, Andy Milonakis, George Takei, and Neil Patrick Harris.
  • Aluminum Christmas Trees: In "We Fixed a Truck", Starchy claims that Princess Bubblegum is actually a reptilian shapeshifter. There are people who actually believe that world leaders are shapeshifting alien lizards.
  • Approval of God: Pen pretty much loves all works made by fans, simply because he appreciates that they care enough about the show to do them. There are some works that he even praises over his Twitter.
  • Ascended Fanon: The idea that there were cat/monochromicorn wars. And of course, some fans put it on the "official" wiki.
    • One fan made a drawing of a tiny cat assassin named Me-Mow. The creators liked the idea, and thus, the episode "Jake vs. Me-Mow" was born.
    • Sort of. Liz Prince wrote a 7-page story called "Fruit Salad Days" for Marceline and the Scream Queens Issue 3, in which Lemongrab was the frontman of a punk rock band called "Unacceptable." Liz Prince's idea of Lemongrab having a punk band named Unacceptable was actually re-used for an official Adventure Time game and comics the following year.
    • Finn's 13th birthday episode first aired, coincidentally, on Pi Day (March 14, 2011) which first Fanon and later Word of God made his birthday.
  • Bad Export for You:
    • The Cartoon Network Australia version of Adventure Time has a truckload of stuff cut out due to censorship, making a lot of episodes look and sound choppy and incomprehensible...
    • The UK DVD issues have no special features. The British Season Two DVD had four full episodes missing, including some highly significant ones for larger arcs.
  • Banned Episode: The first printing of the eleventh issue of the ongoing comic was pulled from stores at the last minute and pulped - not because of any content in the story itself, but because a house ad for Bravest Warriors showed a character making what was considered to be an all-ages-inappropriate hand gesture.
  • Banned in China: In Australia, episodes that aren't butchered are merely pulled from rotation (such as "Fionna and Cake" and "What Was Missing" due to many scenes deemed too sexually suggestive). Thankfully, when the series appeared on free-to-air it was screened unedited (though a few episodes were out of order).
    • The episodes "Wake Up", "Escape from the Citadel", "The Tower" and "Breezy" were banned in several countries (including the United Kingdom and Poland), creating several plot holes.
  • Blooper:
    • In "Storytelling" Finn says "aminals" instead of "animals", although given the Adventure Time's use of odd slang and particularly Finn's fondness for blurting out his own nonsensical versions of words and combinations of words this mispronunciation may be intentional.
    • In "The Limit" Jake says he can't blink... and then blinks mere seconds later.
    • They forgot to put the snail in "Trouble in Lumpy Space" and "Blood under the Skin".
    • In "Business Time", they misspell Finn's name as "Fin".
    • In "Reign of Gunthers", Princess Bubblegum says "calvary" instead of "cavalry" at one point, which is more out of character than Finn's malapropism above.
    • In "You Made Me!", Lemongrab's shoes randomly disappear when he takes out the Sound Sword for the first time.
  • Cash Cow Franchise: On top of the things listed on the franchise page, it also has various toy and clothing merchandises with more still to come.
  • The Cast Showoff:
    • Olivia Olson as Marceline displays her vocal skills in multiple episodes.
    • The Gender Bending episodes seem built around the idea of having the guest cast sing. Madeline Martin voices Fionna the Human and sings in both episodes, with NPH-as-Prince Gumball in "Adventure Time with Fionna and Cake" then Donald Glover who voices Marshall Lee, sharing a duet and singing to Fionna in "Bad Little Boy".
    • Jake gets to show off John Dimaggio's beatboxing skills at the beginning of "Conquest Of Cuteness."
  • Channel Hop: The pilot was created for and aired on Nickelodeon's Random Cartoons.
    • Ironically, as of the third season, Adventure Time is now airing on Nickelodeon in Germany.
  • Creator Backlash: Natasha really hated the design of Ghost Princess.
    • Pen doesn't really like Tiffany very much and is perfectly content with him never returning again. This, however, didn't stop him from returning in "One Last Job."
    • Penalsoregrets Bubblegum being a "kissy prize" in Wizard Battle.
  • Creator Breakdown: Pen Ward quit the series after two seasons when he couldn't handle the sudden influx of work and stress which came with running an extremely successful show. He now only serves as producer and the voice of Lumpy Space Princess.
  • Creator Cameo: In "The Hard Easy", Woobeewoo is voiced by Kent Osborne, one of the show's writers and storyboard artists. He also plays Joshua, Jake's and Finn's dad.
    • In "Storytelling" and "Jake the Dad" the fox is played by Tom Herpich, another of the show writers and storyboard artists. He also co-wrote those episodes.
    • Cole Sanchez voices the Party God.
    • Root Beer Guy is voiced by Jack Pendarvis, one of the writers.
    • In "Billy's Bucket List," Canyon is voiced by Ako Castuera who co-wrote the episode.
    • Steve Wolfhard voices Slimey D and the Ice Imp in "Evergreen."
  • Cross-Dressing Voices: Played straight with Pendleton Ward as Lumpy Space Princess and Ghost Princess.
    • And Steve Little as Turtle Princess.
    • Beau Billingslea is the voice of The Moon.
    • Finn is voiced by women in Spain, France, and Japan. In America, he's voiced by boys (both of them brothers).
    • In the Polish & Russian dubs, Cake (the gender-bent version of Jake) is voiced by a man in her first appearance. Not only that, but in both dubs, Cake is referred to as a guy.
  • The Danza:
    • Finn's alter-ego, voiced by Davey Johnson, was named "Davey Johnson" in the episode "Davey". In the same episode, Davey's friend Randy is voiced by Randy Liedtke.
    • The horse that makes people happy, voiced by James Baxter, was named "James Baxter" in the episode "James Baxter the Horse".
  • Defictionalization:
  • Deleted Scene: A lot. For example, in "The Enchiridion", there was a scene that included Choose Goose. It would have been his first appearance ever, but they saved him for season 2.
  • Development Gag: Ice King's fiancé back when he was a human was named "Betty", which was PB's first name in the original network pitch.
  • Easter Egg: The ghosts' chanting in "Heat Signature" is a backmasked message to Pat McHale.
    Ghosts: Farewell, Pat. Good luck in New York. Come back soon.
  • Executive Meddling: According to Word of God, originally the ending of "Tree Trunks" had Tree Trunks just explode after eating the crystal apple. Cartoon Network made them add the scene where she is inside the crystal. It's hard to say if said meddling affected "Crystals Have Power", in which she is shown to be completely alive and healthy, and Finn and Jake manage to snap her out of being villainous.
    • Also completely altered the ending of "His Hero", which originally would have ended with Billy's throne being revealed as a Sealed Evil in a Can once Billy gets up, leading to a You Shall Not Pass moment. The new ending does get some crap past the radar though.
    • Fred Seibert mentioned that CN tried to get rid of Princess Bubblegum and Marceline, most likely due to the amount of Les Yay surrounding them and the resulting complaints from hardline conservative Moral Guardians.
  • Fan Nickname:
    • The muscular robot-armed Finn from "Mortal Folly" has been named Guts Finn by users on /co/.
    • Fans often call Alternate Universe Finn "Huckleberry Finn."
    • Lady Rainicorn and Jake's offspring are often called "corndogs".
    • The Ice Queen is often named Simone Petrikov by fans.
    • Prismo is sometimes referred to as "Gay Origami Jesus" by Tumblr users.
    • Lemongrab 2, Lemongrab's clone, is commonly referred to as "Buttgrab" by Adventure Time fans, because A) he apparently has an enormous bottom, B) he was butt naked in his first appearance, and C) the fans wanted him to have a name to differentiate him from his predecessor. Which becomes very darkly Hilarious in Hindsight when "Too Old" reveals that he no longer has a butt!
  • Flip-Flop of God: At one point, the creator (Pen Ward) said that Tree Trunks was definitely dead. But then "Crystals Have Power" came along...
  • God Never Said That: Andy Ristaino (character designer) never said that "What Was Missing" was a musical. He said that the episode would kind of resemble one because it has a couple of songs in it.
    • This was the reason for the whole "BubblegumXMarceline Mathematical" fiasco. Frederator took down the video because it made it seem like the show was openly asking for plot input for further PBxMarcy development and Adam Muto, the storyboard artist and writer of the episode, didn't like the video framing that interpretation as only being romantic.
  • God Does Not Own This World: Pen Ward may be the main creative force behind Adventure Time, but if we wanna get really technical, Cartoon Network owns the show, not him (though that should be kind of obvious). From an interview:
    Pen: I get a lot of emails from people asking, "Can you give me permission to make this?" Well, first of all, I don't own Adventure Time, so I couldn't give permission if I wanted to.
  • He Also Did: The pilot Bravest Warriors (he's much more hands off with the series than he is with Adventure Time).
  • I Knew It: Quite a few fans correctly guessed the reason Marceline was after Maja in "Sky Witch" to get Hambo back from her after Ash sold Hambo to her.
    • And also that the Grass Blade would result in Finn losing his arm. The only shocker is how quickly it all transpired.
  • Image Source: This show provides the page image for:
  • Keep Circulating the Tapes: The pilot, which Nickelodeon owns and has refused to do anything with, presumably to not help the competition.
  • Life Imitates Art: There is now a Lincoln penny on Mars. Either the writers knew it was going there beforehand, or someone that designed/built the Mars Science Laboratory was a fan of the show.
    • If neither of those possibilities are correct, it qualifies as one of the most amazing coincidences ever.
    • According to the NASA article, it's an old photographer's trick. They put an item they know the size of in the photographs for scale.
  • Line to God: Pen has a formspring page where he answers various questions about the show.
  • Lying Creator: Oh, Natasha Allegri, you rascal!
    Asker: Do you know who will be voicing Marshal Lee?
    Natasha: arthur kade
    (four weeks later)
    Another Asker: why did you lie about Marshall Lee's voice?
    Natasha: because I wanted to see an Arthur kade article on the wiki
  • Marth Debuted in Smash Bros.: Flame Prince and Lady Lemongrab made their first official appearances in the comic book.
  • Meaningful Release Date: "Mystery Train" (the episode featuring Finn's 13th birthday) aired on March 14th (3/14 or "Pi Day"), which sorta means that Finn's birthday is on Pi Day. Mathematical!
  • Missing Episode: Some of the early episodes from season 1 aren't re-run much.
  • Name's the Same: BMO shares his/her abbreviation (and colloquial pronunciation) with the Bank of Montreal, which makes the show kind of amusing for Canadian viewers.
  • Network to the Rescue: Nickelodeon planned to develop the short into a series, but pretty much ignored it. When the rights of the short returned to Pendleton Ward in 2007, the idea was pitched to Cartoon Network and greenlit a year later.
  • No Export for You: "Fionna and Cake" was never aired in France and Belgium.
    • The DS version of Adventure Time: Hey Ice King! Why'd You Steal Our Garbage?! was never released outside the US. The 3DS version finally came to Europe over a year later, albeit in digital form only.
      • As Video Games Awesome! pointed out, Canada had only just started airing the first season, so there was no reason to release the game. The crew recieved episodes and the game through outside means.
  • The Nth Doctor: While Princess Bubblegum is a 13-year-old, voice actress Hynden Walch is replaced by Isabella Acres.
  • Official Fan-Submitted Content: Me-Mow.
  • Officially Shortened Title: The "...with Finn and Jake" part was dropped after the first season.
  • Old Shame: Adam Muto is so ashamed of his performance of Billy's song in "His Hero" that he can never watch that part of the episode again.
  • The Other Darrin:
    • Played straight with Zack Shada. Zack hit puberty and he couldn't get his voice to sound like Finn's anymore, so when the show went from being a Nickelodeon pilot to a Cartoon Network series, the voice director got Jeremy Shada (Zack's younger brother). Now averted with Jeremy, as rather than get rid of him because of his voice changing, the writers incorporated Jeremy's vocal change to Finn's by periodically aging him (at time of writing, he is 16).
    • Princess Bubblegum is played by Paige Moss in the pilot and Hynden Walch in the series.
    • Ice King was played by John Kassir (The Cryptkeeper, Deadpool, the replacement voice for Buster Bunny when Charlie Adler left) in the pilot. In the series, Tom Kenny plays the Ice King.
    • In the pilot, Lady Rainicorn was voiced by Dee Bradley Baker and spoke nonsense. In the show, her voice actress is Niki Yang (the same Niki Yang who plays BMO) and the nonsense was replaced with fluent Korean.
    • Ghost Princess is played by Pen in "Loyalty to the King" and Maria Bamford in "Ghost Princess".
    • In the video game, Marceline is played by Jessie Seely instead of Olivia Olson. Granted, the difference is barely noticeable.
    • In "Davey", to make his disguise more authentic, Finn changes his vocal chords to a more adult tone of Davey Johnson.
    • In his first appearance, the Cosmic Owl has a feminine-sounding voice provided by Finn's actor, Jeremy Shada. In his next speaking role, M. Emmet Walsh took over the role and gave him a much more masculine, older-sounding voice.
    • John DiMaggio voiced Jake's brother Jermaine in "Crystals Have Power", but in "Jermaine" he's voiced by Tom Scharpling of Steven Universe.
    • Huntress Wizard is voiced by Maria Bamford in "Reign of Gunters", but in "Flute Spell", she's voiced by Jenny Slate, fresh out of Zootopia.
    • In "Five Short Tables", Prince Gumball is voiced by Keith Ferguson instead of Neil Patrick Harris, as the latter was likely too busy at the time.
  • Permanent Placeholder: The main title theme was a scratch recording. Originally played and sung by Pendleton Ward, in the background you can hear storyboard artist Derek Drymon typing on a keyboard and squeaking his chair. Ward attempted to get a better recording of the theme song but couldn't ever capture the feeling quite right ever again, so the scratch recording stayed.
  • Playing Against Type: Henry Rollins as Lady Rainicorn's father.
  • Playing with Character Type: At first, the Ice King seems no different than Tom Kenny's usual characters, until the Christmas Episode "Holly Jolly Secrets" where it's revealed that The Ice King was once a man named Simon Petrikov and that he became the Ice King after wearing a crown that drove him to insanity.
  • Production Nickname: The staff have mentioned jokingly calling the shape-shifter from "Joshua and Margaret Investigates" who turns out to be Jake's biological parent "The Peeper".
  • Real-Life Relative:
    • Olivia Olson is the daughter of Martin Olson, and they voice Marceline and her dad, Hudson Abadeer (respectively).
    • Tom Kenny's wife, Jill Talley (Karen), voices Maja the Sky Witch.
  • Screwed by the Network: In 2015, the series began getting this treatment for unknown reasons, though the saturation of the schedule with Teen Titans Go! reruns (either for financial reasons, or so the network can artificially lower the series' ratings to justify shitcanning it), its age (the series premiered in 2010, and is pretty old by industry standards), or Moral Guardians (the show has had alot of violence, some gore, and many Getting Crap Past the Radar moments) are most likely to blame. The series wasn't rerun much in 2015, and new episodes are only advertised online. The situation slightly improved in mid-2016 with better advertising, but reruns were still non-existent, meaning if one missed an episode, they would have to watch online (either through the CN app, on unofficial hosting sites, or outright piracy), or through video on-demand services.
  • Shrug of God: Whenever someone is asked whether Susan is human or not. The answer is usually "Come up with your own conclusion." "Deep Purple" eventually revealed that she's a human with some cyborg augmentation.
    • The same answer is usually given regarding the relationship between Lemongrab and his clone. Princess Bubblegum and Marceline used to get a lot of this to until Olivia Olson finally just flat out confirmed that they're ex-girlfriends. They can never explicitly say it in the series, though, because the series airs in countries where homosexuality is illegal (IE Russia).
  • Spoiler: Though the spoilers don't actually happen "in-show". A lot of the season one storyboards could be viewed online before their episodes even aired. But hey, it would be fun to watch the episodes to see if anything got changed.
    • Pen Ward blatantly mentioned at Comic-con that Flame Princess would be Finn's new love interest before "Incendium" aired. However, he didn't spoil her destructive personality and only called her "intense" (a word that a member of the audience laughed at).
    • TV Guide spoiled the fact that the short stories in "Five Short Graybles" are centered around the five senses (sight, touch, taste, smell, and hearing). It wasn't supposed to be revealed until the end of the episode. It really makes "Huh? You still haven't figured it out?" less funny.
  • Talking to Himself: Tom Kenny voices both the Ice King and his penguins.
    • While it's not clear if any of her characters talked to each other, stand-up comedian Maria Bamford has voiced twenty-six voices for the show, even doing male voices such as Manfried in "Slumber Party Panic" and the Butterfly Bandit in "The Other Tarts".
    • Justin Roiland voices Lemongrab, Lemongrab's clone, and all of their children.
  • Teasing Creator: A lot, if not most, of the staff count. Exhibit A, Adam Muto:
    Asker: What was the deal with the worm king at the end of evicted? Who is that guy and what are his motives?
    Adam Muto: There's a very interesting story there. He was there to en–wowowowowowowowowowo!!!note 
    • The staff loves to remind the fans that Fionna and Cake and related characters will never be part of the main AT universe. Hasn't stopped fanfiction writers, though.
  • Throw It In: An unusual example. When Adam Muto originally pitched "What Was Missing", he flubbed the original line that read "I'll get your toy back, kid!", and he said "I'll get your kid back, toy!". They thought it was funny that way, so they kept the line flubbed.
    • In "Goliad", the titular character (voiced by writer Graham Linehan's daughter) badly flubs the line "I'm Don Juan Cherry Tempo!" but the producers clearly thought it was so adorable and funny that they left it in.
  • Tribute to Fido: Marceline's poodle, Schwabl, is based off of Pen's friend Marie's dog, Schwabble.
    • Natasha's cat Pancake has been inserted into the show on many occasions.
  • Trolling Creator: Natasha Allegri, on an ambiguous level. For example, there's all her Bubblegum/Marceline fan art before and after "What Was Missing" when she claimed that she didn't even understand what shipping was. Hell, someone even called her out on it, and she responded, "I've never drawn them kissing." And later, when someone showed her a picture she drew of PB kissing Marceline, she said, "It doesn't have my signature on it." (That's only because she drew it for 4chan, and she doesn't sign those pictures.) And there's also when she drew this Fubblegum picture right before "Incendium" aired. And ALSO when she drew Flame Prince just to cause war-shipping in the gender-bent lovers of the fandom.
    • A lot of the fandom sees the show's writers as this. For example "Fionna and Cake" basically compares the Ice King to fanfic writers. Many fans see "All the Little People" as a Take That and parody of shippers in general. And then there's the end of "Mystery Dungeon" where Ice King didn't get to make the Fionna and Cake world real, which is what many fans wanted. In particular, many fans advocate a meeting between Finn and Fionna, to the point that the Finn/Fionna ship is rather popular, though many other fans reject the ship for basically being what is referred to as "selfcest".
    • Seeing as some fans ship the two Lemongrabs together, "Another Five Short Graybles" has the original Lemongrab eat the other, as well as revealing that they view each other as brothers rather than lovers.
  • Voices in One Room: The cast records their dialogue together in one room, which is rare for an animated show.
  • Western Zodiac: Fitting enough that Finn's element is water. His birthday, March 14th, exists in the Pisces period during the year, and Pisces' Zodiac element is water.
  • What Could Have Been:
    • In early storyboards of "His Hero", Billy was named "Hogarth", his throne was actually a shapeshifter that he was keeping in check by sitting on it, and Hogarth was originally going to fight the shapeshifter with his survival being ambiguous.
    • The original storyboard for "The Duke" has Jake imagining how evil the Duke can be. The Dramatization includes a particularly impressive Hurricane of Nut-Puns by the Duke, which includes "CASHEW LATER, COPPERS!" and "CHESTNUT YOUR DAY, JAKE!". However, this was scrapped for time.
    • The Princess Plant was originally supposed to be called the Halo Lily.
    • "Brothers in Insomnia". Sadly, this was never made into a full episode. And, just to put salt in the wounds, they made an awesome background for it. Also, "The Glorriors".
    • Apparently, Marshall Lee had lines, but they were cut for time. Rebecca Sugar wanted him to be voiced by Dante Basco.
    • The most unfortunate example yet: Pen had to cut A HIGH FIVE from an episode!! [1]
    • The Lich was going to be known as the Lich King until Blizzard supposedly forced them to write around trademarks, and he went through two different redesigns before settling on the final one. During his Early-Bird Cameo, he's referred to by his original name.
    • As mentioned before, the fact the series was originally to be on Nickelodeon.
    • The original ending of "Sons of Mars" would have shown Death transporting Lincoln back to Ford's Theater before fading to black with the sound of the gunshot from John Wilkes Booth. The final version has a gunshot, but no Ford's Theater, implying but not making explicit the events shown in the storyboard.
    • There were also several changes to "The Lich". For one, Prismo is called "The Almighty Grob", but more importantly the Lich would've been possessing Billy instead of having killed and replaced him, and Booko would have revealed that Finn's human dad was a hero who was wrongfully imprisoned in an impossible-to-escape dimension—with the implication that Billy put him there—and is still fighting the other inmates. This ties into several examples of The Artifact. In the actual series, "Grob" refers to a powerful (but not all-powerful) magical being from Mars (full name Grob Gob Glob Grod). This storyboard also reveals that Finn never realized that he was adopted (with a Lampshade Hanging on the ridiculous levels of Idiot Hero that would come along with this notion), which is obviously not the case in the series. Sadly this meant one of the series biggest heartwarming moments ended up being cut as well.
    • According to Jesse Moynihan, Lemongrab was not originally a socially awkward, dysfunctional, brain-damaged, unadjusted Jerkass Woobie in the original outline. He was originally conceived by Pen to be a one-shot, one-dimensional Jerkass "like Xergiok." However, Jesse stepped in, and decided to give Lemongrab the puzzling amount of depth he has, by making him "weird, isolated, angry, off-putting, with an inability to read social cues." Part of Lemongrab's appeal appears to be his many woobie-ish and sympathetic traits. If Jesse hadn't fleshed out Lemongrab's character, LG wouldn't have the zealous fanbase he has, and he probably wouldn't have been considered to make a return in the series after his exit from "Too Young".
    • The episode "Betty" was supposed to be a double episode, but there was already a double episode in production and Huntress Wizard appeared in a 30 second scene but it was cut for unknown reasons, possibly time reasons.
    • According to Jack Pendarvis, Stephen King was briefly considered as a voice of Root Beer Guy.
    • Toronto was going to appear in Apple Wedding, where he catches Princess Bubblegum rooting around in the King of Ooo's things, and she throws him in a suitcase to keep him from interfering in her investigation. He makes his debut in Gold Stars, where he's a lot more sinister.
    • Princess Bubblegum was originally going to stay 13 for a few episodes beyond "Too Young", but the team was unable to come up with any good stories. So, they turned her back to her normal age in "Too Young". To date, the episode still remains controversial in the fan community for sinking the Fubblegum ship, but it is now understood that this was done to make way for the Flinn ship (which was also sunk).
    • At the end of "Hot to the Touch", Finn and Flame Princess were supposed to kiss instead of hug, but this was saved for "Burning Low". It's perhaps this reason that the latter episode is the highest-viewed episode in the series.
  • Why Fandom Can't Have Nice Things: Allegedly, Pen stopped answering Formspring questions because he got tired answering the same ones over and over again.
    • The uproar that happened over the Ship Teasing in "What Was Missing" caused "Mathematical!" to stop producing recaps.
    • Nat and Pen used to make themselves known on /co/, but they stopped due to... obvious reasons. Nat later came back for the show's second anniversary. She also came back the Sunday night before the season 4 finale.
  • The Wiki Rule: The fan-made wiki can be viewed here.
  • Word of Gay:
    • Lead character designer Andy Ristaino revealed that the Gladiator Ghosts are indeed homosexual and in love with each other after "Morituri Te Salutamus" aired.
    • Kate Leth draws the Lady Lemongrabs as a couple. In the Fionna and Cake comic book, their relationship is only suggested through (admittedly obvious) subtext. Outside of the issue, though, Leth repeatedly draws the Lady Lemongrabs in obvious romantic scenarios.
    • Olivia Olson, the voice of Marceline, revealed that someone on the show's crew told her that PB and Marcy used to date, but that they can't outright say it on the show because of Moral Guardians and (most likely) the Russian government.
  • Word of God: Princess Bubblegum is actually made of bubblegum.
    • Princess Bubblegum's composition is actually a plot point in "Mortal Recoil".
    • BMO is "sexless", being a robot, and also genderless. S/He has been called masculine or feminine pronouns by different characters. For what it's worth, BMO is voiced by a woman, and the episode title "BMO Noire" uses a feminine spelling for the French adjective; however, that same episode has BMO imagine having a relationship with a female (chicken), while in another s/he pretends to be a "real boy."
    • After years of hints in-show Olivia Olson finally confirmed that PB and Marceline are ex-girlfriends (as if it wasn't blatant enough already).
  • Working Title: Many of the episodes have had original titles that were changed. Some examples:
    • "The Royal Promise" → "Slumber Party Slaughter" → "Slumber Party Panic"
    • "Meet the Ice King" → "Prisoners of Love"
    • "Ice King and Son" → "What Is Life?"
    • "Return to Nightosphere" → "Marceline's Dad" → "Nightosphere" → "It Came from the Nightosphere"
    • "Click-click!" → "Blood under the Skin"
    • "Born to Die" → "The Real You"
    • "Finn the Wizard" → "Wizard"
    • "Door Jam" → "What Was Missing"
    • "The Croak List" → "The New Frontier"
    • "Worm King" → "King Worm"
    • "Card Quest" → "Card Wars"
    • "An Assassin In Jake's Nose" → "Jake vs. Me-Mow"
    • "Word War II" → "Paper Wars" → "Paper Pete"
    • "Heart of the Fire Kingdom" → "Incendium"
    • "They Went To The Nightosphere" → "Return to the Nightosphere"
    • "Prince Huge" → "The Hard Easy"
    • "Help" → "I Remember You"
    • "LSP Gets Robbed" → "Candy Streets"
    • "Only Wizards Allowed" → "Wizards Only, Fools"
  • Write Who You Know: In "Return to the Nightosphere", Marceline's dad is officially given the name Hunson Abadeer. While it seems like a fancy name that means something, it's actually the name of the family Nissan of storyboard artist Jesse Moynihan when he was a child.. Also the name of his first band; they wrote one song titled "Girls Girls Girls".
    • Tree Trunks was based on as well as written expressly for Livingston, who is an old friend of Pendleton Ward's family.
    • Not so much a person, but a urinal where Penn works was the inspiration for the Cosmic Owl. The light reflects off the very shiny metal urinal and resembles the Cosmic Owl. This strange little tidbit of triva came from a interview with Nintendo Power.

General Trivia:

  • It has become so successful that most of the crew members past and present are now getting work in most of Cartoon Network's and Disney's other headlining shows. The show has pushed several of the cast and production members into the spotlight for animation fans and executives, who suddenly saw them appear in later shows thanks to Adventure Time.
  • Did we mention the creator also storyboarded on The Marvelous Misadventures of Flapjack? You can actually see his unique "oomph" in the episodes he storyboards, where there are jointless limbs, cute/scary faces and figures, and a very loose style compared to the other artists. The creator of Flapjack is in turn a writer and producer on Adventure Time, and even voiced a wood witch and a worm's butt.

http://tvtropes.org/pmwiki/pmwiki.php/Trivia/AdventureTime