Trivia: Kingdom Hearts


  • Acting for Two: Xion shares her Japanese voice actress with Kairi, and in Days Stoner also plays The Other Darrin for Kairi. However, Kairi's original voice actress, Hayden Panettiere, returned for Birth by Sleep... as Kairi and as Xion, interestingly enough.
  • Actor Allusion: Eraqus's Knight Templar behavior and attitude towards darkness and light are very similar to how the Jedi in the Star Wars prequels are portrayed, particularly in how Terra desires greater power to protect his friends, and Eraqus warns that type of obsession and fear leads to darkness.
  • All-Star Cast: Though some of them are replaced with The Other Darrin sometimes, the voice acting credits of the series include Haley Joel Osment, David Gallagher, Hayden Panettiere, Jesse McCartney, Billy Zane, Christopher Lee, Leonard Nimoy and Mark Hamill. And that's just the original characters; we're not listing the Disney and Final Fantasy credits where many famous voice actors reprise their original roles, or characters who got famous voice actors for their first vocalized appearance. Those credits include Mandy Moore, James Woods, David Boreanaz, and Dan Castellaneta.
  • Author Existence Failure / Character Outlives Actor: Several characters have lost their voice actors over the years, but the most prominent ones are Mickey Mouse and Master Xehanort. The latter is very noticeable, as both his English and Japanese voice actors, Chikao Otsuka and Leonard Nimoy, died a month apart in 2015! Then in June 2015, Sir Christopher Lee passed away, but Corey Burton had been filling in for Lee since 2010.
  • Cash Cow Franchise: How else do you explain the presence of three side story games between KH2 and 3, one of which existing just to tie up all the loose ends left by almost every other game? Given the series's enthusiastic fandom and the fact that it's made by both Square Enix and Disney, it's not surprising.
  • Celebrity Voice Actor: Let's see... Haley Joel Osment, Hayden Panettiere, Jesse McCartney, David Gallagher, Christopher Lee, Leonard Nimoy, Mark Hamill, Billy Zane, David Boreanaz, Mandy Moore... the list goes on and on; although some of the celebrities who appeared in the first game did not reprise their roles.
  • Cowboy Bebop at His Computer: Disney Adventures, the official magazine for The Walt Disney Company, inexplicably delivered a totally inaccurate blurb on the first games plot; it said that the games story was about the Disney villains wanting to change the endings of their stories so the bad guys win. Already done in Disneys Villains Revenge, but firstly, that's not the premise, and second, the story's even deeper and darker than how they described.
    • In Italy, Disney's official stuff (articles on the Italian Mickey Mouse and their strategy guide) about the first game of the series kept saying that Darkside (the giant Heartless Sora fights at the beginning of the game and later before the final boss) is the Big Bad of the game (even referring at him as "the invincible Heartless prince"), and that the game ends with Sora fighting him in Neverland. In the actual game, Darksides are a generic heartless (note the plural), and while Sora does fight one again later on, it's in the remains of the Destiny Islands, not Neverland. Since you encounter it in the middle of fighting the game's real Big Bad, Ansem, it may have been a simple misunderstanding.
  • Dawson Casting: Haley Joel Osment, Hayden Panettiere and David Gallagher have become this in the course of production. When the first Kingdom Hearts came out, they were 14, 13 and 17 respectively, playing characters who were 14, 14, and 15 respectively. However, by the time Dream Drop Distance came out, ten years had passed in real life while only two have passed in-universe.
  • Defictionalization: Master Swordsmith and Renowned Propmaster Tony Swatton made a Real-Life Replica of the Kingdom Key Keyblade after receiving a lot of requests from fans. No joke.
  • Exiled from Continuity:
    • Due to some legal issues, Tarzan's world has been Ret Coned from existence and doesn't appear in any game afterwards, not even in the manga adaptation or the dreams at the beginning of Kingdom Hearts II. It's still present in the novel adaptation, oddly enough.
    • In a sense, Kingdom Hearts V-Cast was made by Disney Mobile, so while it makes sense that he'd appear in Wonderland's chapter from the Disney side of things, the Alice in Wonderland Caterpillar isn't considered canon because Square-Enix's games don't feature him in Wonderland. Despite this, he appears in the manga adaptation for Days.
  • Fan Nickname: Mysterious Figure, which is from the Brady Games Birth by Sleep guide. The name is unofficial, but persists in the fan community for the sake of distinction from the original Unknown.
    • A handful of fans also refer to him as Soranort. Because at this point, he's bound to be related to one of them somehow. Ironically his entire plan in 3D is to create/become a literal "Soranort."
    • As of the release of 3D, he's been referred to as Trollanort, thanks to his affinity for playing literal mindgames and his bordering-on-unfair use of time control in his boss battle. Other variants include Clockanort and "TOKI WO TOMARE-nort".
    • Apparently Luxord's is George Michael for the (unintentional?) resemblance.
  • Flip Flop of God: Though some of this is also the fault of Word of Dante, there's been conflicting reasons for why Sora and Roxas are able to dual-wield Keyblades. The current official explanation is that it's because he has Ven's heart inside him, and Roxas is able to do so because he's Sora's Nobody. This is a direct flip of what fans had previously assumed—that Sora got the power from absorbing Roxas, and Roxas in turn got the power from absorbing Xion.
  • Hey, It's That Voice!: Ye gods, this. One of the games' most acclaimed features, in fact. It's big enough for it's own page, even.
  • Hilarious in Hindsight: The main franchise article starts with "So Disney and Square-Enix walk into a bar…" That's not too far from the truth. Nomura and a Disney employee walked into an elevator, and the rest, as they say, is history.
  • No Dub for You: The first two PS2 entries were dubbed into multiple European languages, but all of the following games used the English voice track in European regions - including the HD Remix compilations, despite said European dubs existing for the older games included.note 
  • No Export for You: Kingdom Hearts owned this trope (unfortunately). Neither Americans nor Europeans got their hands on the original releases of Kingdom Hearts Final Mix or Kingdom Hearts II Final Mix+, making everyone mad and further mucking up the narrative.
    • It looked like the latest installment to the series, coded would go the same way until it was announced in E3 2010 that the game would be remade for the DS as Re:coded and released to Western audiences.
    • Which was quickly countered by Birth by Sleep Final Mix, with Nomura being evasive when asked of a release outside of Japan.
    • This trope has finally been averted for all the Japanese-only updates, as the 1.5 HD Remix compilation release for PS3 contains Kingdom Hearts Final Mix, along with Re:Chain of Memories and cutscenes of 358/2 Days, and 2.5 HD Remix features Kingdom Hearts II Final Mix, Birth by Sleep Final Mix, and the Re:coded cutscenes.
  • Talking To Herself: Xion's voice, Alyson Stoner, also voices Kairi in a quick flashback sequence in Days.
  • The Other Darrin: Quite a few. A bad example being Mandy Moore replaced by the absolutely wooden Mena Suvari. A good example would be Lance Bass being replaced by George Newbern (who made it clear that the line is "Descend, Heartless Angel", not "Sin Harvest" as Bass' rushed delivery had many believing, including Dan Birlew, author of the official strategy guide.)
    • Corey Burton is The Other Darrin to a few of characters, most notably DiZ. He played MCP and Sark in II
      • Before Christopher Lee's passing in June 2015, Corey Burton filled in for DiZ whenever Lee wasn't available. But from 2010 onwards, Burton has taken the role full time, especially after Lee's passing.
    • Providing a good example for why this trope is used, Kathryn Beaumont is the one voice actor from Walt's era who reprises her roles (Alice and Wendy). About fifty years later, they naturally don't sound at all convincing.
    • Alyson Stoner and Meghan Jette Martin do the Darrin job for the characters of Kairi and Naminé in Re:Chain of Memories.
      • Xion is an unusual example. In the English version of 358/2 Days she is initially voiced by Alyson Stoner, who was The Other Darrin to Hayden Panettiere's Kairi. Panettiere would later return to voice both Kairi and Xion in Birth by Sleep and Dream Drop Distance, essentially making her The Other Darrin to Stoner's Xion. Stoner then returned in the Compilation Re-release 1.5 HD Remix. See Acting for Two above.
    • Toru Okawa replacing Akira Kamiya as Iago in Kingdom Hearts II.
    • Wayne Allwine, the longstanding voice of Mickey since the late '70s, died in May of 2009, shortly after he finished recording for Days. Birth by Sleep marks the debut of Bret Iwan as Mickey.
    • Beginning in Kingdom Hearts II, Richard Epcar took over for Billy Zane as Ansem in all future releases, to the point where his voice even replaced Zane's in flashbacks to the first ''Kingdom Hearts'' to maintain vocal consistency.
    • Eddie Carroll (voice of Jiminy since the mid-70's) died in 2010. Phil Snyder replaced him in all subsequent games.
    • Tate Donovan reprises his role as Hercules in the second game. Before that, he was voiced by Sean Astin (y'know, Sam)? In Birth by Sleep, Josh Keaton returns to voice the younger Hercules.
    • Brittany Snow was replaced as Naminč by Meaghan Jette Martin in Re:Chain of Memories, Birth by Sleep, 358/2 Days and Re:coded.
    • With both Chikao Otsuka and Leonard Nimoy gone, this is likely to happen with Master Xehanort, provided that voice recordings have not began yet.
  • Schedule Slip: Yoko Shimomura apparently has habitual problems producing her music on time. This got a whole lot worse during production for the handheld trilogy (coded, 358/2 Days, and Birth by Sleep), during which she was also composing for Final Fantasy XV, leading to Tsuyoshi Sekito and Takeharu Ishimoto composing a good deal of Birth by Sleep's music.
  • Sleeper Hit: It can not be understated that the announcement of a Disney/Final Fantasy collaboration was derided by majority of gamers when first announced. Kingdom Hearts was released during a time when Disney Studios was going through a Dork Age, so most gamers felt that the collaboration would bomb. The end result was popular reviews, the game ending up as one of the top 10 selling PS2 titles, and the start of one of Square's biggest franchises.
  • Trope Namer for the following tropes:
  • What Could Have Been:
    • The game was originally supposed to be Mickey-themed, but there was a disagreement on whether Mickey or Donald should be the protagonist. They eventually decided to Take a Third Option and feature an original character as the protagonist.
    • Further in development, Sora was half-lion and had more of a chainsaw blade than a Keyblade. Have a picture.
    • Chernabog was to have been the original Big Bad, the embodiment of all darkness, taking inspiration from American Gods with the final battle being a gradual climb up the slopes of Bald Mountain to fight him. He was instead turned into a surprise boss due to console limitations and Executive Meddling.
    • The final battle with Xemnas in KHII was supposed be quite different, with Xemnas melding into a giant Transformer-esque creature after absorbing power from Kingdom Hearts and, upon defeat, transform into this distorted version. This idea was nixed and replaced with the dragon-fortress/armored Xemnas and black-and-white coat Xemnas battles.
    • Variants of Behemoths and Wyverns (from the first game) were originally included in the 1000 Heartless Battle in Kingdom Hearts II.
    • In KHII, Sora was intended to have a double-bladed Keyblade. How this would affect gameplay is unclear.
    • The Pridelands were originally going to be featured in the first game, but the engine couldn't handle the quadrupedal movement, so Simba was included as a summon instead. After changing the game engine, the world managed to make it into Kingdom Hearts II.
    • Deep Jungle was set to return in Chain of Memories, but was cut due to copyright complications. Tarzan has not appeared in any KH game since.
    • 358/2 Days had a Pinocchio world which was Dummied Out. It would have included Gepetto, Foulfellow and Gideon, and Human!Pinocchio, and would have a What Measure Is a Non-Human?-centered plot and a focus on circus scenes. It was cut due to space limitations.
    • A Jungle Book world was Dummied Out of Birth by Sleep, with Louie's Throne Room remaining as part of the game code.
    • The outside walls of Hollow Bastion/Radiant Garden were originally going to be playable in Kingdom Hearts II.
    • An odd example is a scene from the Beta trailer of the first game, which has Riku at the top of Big Ben. What's odd is that, despite never appearing in the finished game, it is still referenced in later games as canon.
    • Both Hades and Megara were set to appear in 358/2 Days.
    • Pleakley was meant to appear in the Lilo & Stitch world in Birth by Sleep.
    • Rikku was originally supposed to have been with Leon, but the production team decided it'd be too confusing with Riku and Rikku, so she was replaced with Yuffie, who also got the outfit Rikku would have worn.
    • Vincent Valentine was planned to feature in the first game, but was replaced by Cloud, a more recognizable and iconic character. Like the Rikku-Yuffie example above, Cloud's design in KHI subsequently included elements from Vincent's, such as the red cape and clawed gauntlet.
    • A younger version of Irvine Kinneas was also supposed to be in Destiny Islands, but was replaced with Wakka (also more recognizable, although perhaps because of Kingdom Hearts).
    • Laguna Loire was going to be the head of the Mirage Arena in Birth by Sleep, but was cut because he was already appearing in Dissidia: Final Fantasy.
    • Buzz and Woody were designed as a Final Mix summon for Kingdom Hearts II, but were Dummied Out.
    • Both Leon's and Cloud's pasts were going to be touched upon in Birth by Sleep, but as the world already had several members of Organization XIII appearing, it was decided that the world would have been too overloaded with characters.
    • Marluxia was originally envisioned as a woman, but was changed to a man when the developers realized that having two women rebelling against an otherwise all-male Organization and get killed for it was rife with Unfortunate Implications.
    • Luxord's Lethal Joke Weapon was originally going to be the more character-appropriate dollar bills.
    • Axel was supposed to be killed by Roxas at the end of the prologue in Kingdom Hearts II, but was such a fan-favorite that he was brought back for the rest of the game and given a Heroic Sacrifice.
    • The members of Organization XIII who died in Chain of Memories (Vexen, Lexaeus, Zexion, Larxene, and Marluxia) were going to be bosses in the Olympus Coliseum in KHII, but were cut. The Data-Battles of Final Mix are a remnant of this.
    • Following the death of Wayne Allwine, Nolan North was considered to succeed him as the voice of Mickey Mouse. However, his busy schedule, particularly with Uncharted 2: Among Thieves, prevented him from getting the role, and Bret Iwan was cast instead.
    • Around 2002, Disney commissioned a Kingdom Hearts animated series... but it was passed on, despite excellent testing, to avoid contradicting future games and to respect Tetsuya Nomura's vision. Some storyboards can be seen here, and an interview with the show's creator here.
    • An android/iOS game called Kingdom Hearts: Fragmented Keys was in early development, but was ultimately scrapped. Its new worlds included locations from Tangled, Wreck-It Ralph, Frozen, and even Star Wars, which Disney had only acquired recently at the time of the game's development. However, it is likely that some of the concepts featured in the unfinished work will appear in Kingdom Hearts III.