History Characters / EtrianOdysseyI

!!Golem

!!Wyvern

!!Manticore

!!Alraune

* DubNameChange: The trio was originally known as Wyrm (Great Dragon), Drake (Blizzard King), and Dragon (Storm Emperor) for the DS era of the series, getting their current names starting with ''Legends of the Titan''.
* FireIceLightning: Each dragon focuses on one of the elemental damage types, often at a level so powerful that defensive classes' "Wall" skills are necessary to survive them.

!!Iwaoropenelep (イワォロペネレプ)
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/sq1_iwaoropenelep.png]]
The guardian of the Forest Folk.

!!Yggdrasil Core (フォレスト・セル, ''Forest Cell'')
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/sq1_forestcell.png]]

The core of the Yggdrassil Tree, corrupted by all the pollution it absorbed.

* DubNameChange: Called Forest Cell in Japan, and renamed Primevil in the localization. In ''The Millenium Girl'', the name is changed to Yggdrasil Core (although there is a cutscene where its Japanese name is displayed on a computer screen).
* FinalBoss: Of the Story Mode from ''The Millenium Girl''. When fighting it in this context, its attack and defense are dropped for both phases, its health is drastically lowered for phase 1, and the party’s offences are just as greatly increased for phase 2.
* GiantSpaceFleaFromNowhere: There's nothing that even implies it exists before you fight it in the original, nor are you ever given much information about it afterwards. Averted in ''The Millenium Girl'', where it plays a much bigger role in the Story Mode.
* OneHitKill: Always starts the fight with the party-wide Necrosis skill, which can inflict instant death if it lands. While the initial hit rate is low, it will eventually use a buff to increase its chance of landing ailments. If the buff is not dealth with before it uses Necrosis again you're looking at an almost guaranteed party wipe.
* StatusBuffDispel: Can randomly use Resolve/King's Resolve to remove all the party buffs, should they have large amounts of buffs.
* {{Superboss}}: The Yggdrasil Core hides at the very bottom of the Labyrinth. It is much stronger than Etreant or the three dragons, having access to many party-wiping abilities such as Necrosis, requiring the player has advanced knowledge of the game’s mechanics just to (maybe) stand toe-to-toe with it.
* ThereIsNoKillLikeOverkill: Gets a new skill called Armageddon in the remake, which can easily hit for thousands of damage while your HP is capped at three digits without the use of buffs. Worse yet, it is typeless damage meaning it can't be resisted by any means. Most strategies revolve around killing it before it evers gets to use this attack.

[[/folder]]

!Introduced in ''Etrian Odyssey Untold: The Millennium Girl''

[[folder:Story Mode party]]
!![[TheHero Highlander]]
[[quoteright:256:https://static.tvtropes.org/pmwiki/pub/images/highlander.png]]
->'''Voiced by''': Creator/KosukeToriumi (Japanese), Creator/OrionAcaba (English)
The Highlander is the main character of ''The Millennium Girl'''s Story Mode. He hails from a respected tribe from afar. When Radha Hall requests aid, he is sent over to help Etria. The Highlander class specializes in both attacks and buffs, though many come with [[CastFromHitPoints a small price in HP]].

* TheAce: If he has the skill Limitless, he can use any skill in his arsenal, regardless of the weapon he has equipped. [[FridgeLogic He can even use shield skills without one]]. It's only good the turn after it's used, however.
* CastFromHitPoints: Eleven skills in his default class' arsenal either have the user lose HP to use, or require HP to be lost to activate.
* CounterAttack: Bloodlust gives him a chance of attacking a random enemy time he loses health. [[ExactWords Note the description is "loses health", not "is attacked".]] This means he has a chance of attacking even from poison damage or health lose he causes ''[[CastFromHitPoints himself]]'', meaning if he has the Bloody Offense buff and uses a skill that consumes HP, he has two chances of extra attacks even on turns where the enemy doesn't attack him at all.
* ForGreatJustice: The Highlander's mantra is "true justice for all". [[spoiler:This leads to his rejection of [[FantasticNuke Gungnir]] and M.I.K.E's [[TheNeedsOfTheMany rationalization of its use]].]]
* GoodScarsEvilScars: Firmly on the side of good, though with a possible sarcastic side.
* HealingHands: Turning Tide and Allied Bonds can heal the party's HP. Black Sabbath can as well, but may [[HoistByHisOwnPetard leave the party with status effects]].
* HelloInsertNameHere: The player names him at the start of the game. Some voiced parts of the dialogue will refer to him as "Highlander".
* TheHero: He's a good guy through and through.
* HeroicMime: An instance that's similar to [[Characters/TheLegendOfZelda Link]]. He doesn't talk to characters on-screen, and doesn't speak during cutscenes, but he has VoiceGrunting and has different answers and responses in certain situations, which are chosen by the player.
* JackOfAllTrades: Spear damage aside, he possesses a wide variety of buffs with varying effectiveness, encouraging use of the Grimoire system to transfer to other characters for best effect.
* JerkWithAHeartOfGold: Many of his dialogue options push him into this territory.
* NamedByTheAdaptation: The Highlander is named "Lindis Fern" in the official [[ComicBookAdaptation manga adaption]].
* NotSoStoic: He ''does'' feel an urge to yell like {{Franchise/Tarzan}} while swinging in a vine, regardless of whether you choose to do it or not. Should you decide not to do the former, the game will remark that you have your shame to consider, possibly poking fun at the trope of Stoics.
* OneHitKill: His Head Pierce skill has a chance to instantly kill an enemy.
* SeanConneryIsAboutToShootYou: His portrait shows him pointing his spear towards the player.
* ShoutOut: One of his skills is named [[VideoGame/TraumaCenter Stigma]], though it's called [[VideoGame/{{Gungnir}} Stigmata]] in the English version. Another of his skills is Music/BlackSabbath.
* StatusBuff: Bloody Offense, Spirit Shield, and Battle Instinct are some examples.
* StatusEffects: The two skills above can inflict binds and status ailments he has on an enemy and transfer the enemy's to the whole party, respectively.
* TheStoic: All artwork of him shows him to be completely stone-faced, and the majority of dialogue options tend to make him come off as relatively composed.
* SupportingProtagonist: While he is the player character and leader of the guild, the story is really about Frederica.
* TerseTalker: His voice likes consist of one word at most, like "Better?" if he heals someone.

!![[TheGunslinger Frederica Irving]] (フレドリカ・アーヴィング)
[[quoteright:256:https://static.tvtropes.org/pmwiki/pub/images/riky.png]]
->'''Voiced by:''' Creator/MariyaIse (Japanese), Creator/StephanieSheh (English)
Frederica Irving is a young girl the Highlander finds in Gladsheim inside a strange piece of technology. She doesn't seem to remember anything from her past, though things do come to her from time to time. She's also a Gunner, being able to help the party in battle. [[spoiler:She's the titular Millennium Girl, who worked with Visil to bring about the Yggdrasil Project.]]

* AffectionateNickname: M.I.K.E. calls her "Ricky"[[spoiler:, as did her father. After regaining her memories, she asks the party to do the same -- even if you don't agree, her name in-game changes to it permanently. The change also makes everyone call out her name in battle change to her nickname, even.]]
* AmnesiacHero: Doesn't remember anything about her past at first. She gets better eventually.
* CharacterTitle: [[spoiler: She's the titular Millennium Girl]].
* DefrostingIceQueen: A downplayed example, but still. She's somewhat aloof and focused on her mission at first, but warms up to the party. This eventually culminates in asking everyone to call her by her AffectionateNickname.
* FireIceLightning: Can use elemental shots.
* FlingALightIntoTheFuture: [[spoiler:Went into cryogenic sleep for ''a thousand years'' in the hopes that when she woke up, she could find a way to destroy Yggdrasil.]]
* FreakOut: Shows some really but rare panicked expressions when [[spoiler:M.I.K.E tries to use the wide nuke Gungnir to destroy the Yggdrasil Core AND Etria after being told not to]].
* GirlishPigtails: Her short twintails emphasize how young-looking and girlish she is.
* TheGunslinger: She uses guns for her default class. Unlike other EO-universe Gunners, she is shown in cutscenes using a 'modern era' semi-automatic pistol instead of the hand-cannons, revolvers, flintlocks, matchlocks, and archaic gonne designs most other gunners are portrayed with in official media.
* HealingShiv: As a Gunner, her Medic Bullet can heal HP and cure status effects.
* IAmWho: [[spoiler:The Millennium Girl.]]
* InSeriesNickname: Ricky, given to her by the people from her era. The party eventually addresses her as Ricky as well.
* InformedAttribute: The artbook from ''The Fafnir Knight'' says that she's grouchy. Aside from a few moments and whenever the Highlander says something silly during a serious moment or stupid, this is not the case.
* JackOfAllTrades: Can bind, inflict elemental damage, heal allies, and has a relatively even stat spread to complement the skill set.
* LastOfTheirKind: [[spoiler: She's the last living human from our version of Earth]].
* LittleMissBadass: One of the youngest of the Story Mode cast, but capable of holding her own in combat.
* LuminescentBlush: Her default look has this, but she can go ''completely'' red in the face sometimes.
* MysteriousWaif: Very much so at first.
* TheParalyzer: As a Gunner, she has skills which can bind an enemy's limbs.
* PreAsskickingOneLiner: Just before you take on the Yggdrasil Core, she says, "[[spoiler:I have waited a thousand years for this moment]]."
* QuadDamage: Her Charged Shot skill, which can deal 400 percent damage at max level.
* Really700YearsOld: [[spoiler:Spent a thousand years in cryogenic sleep in order to destroy the Yggdrasil Core.]]
* SeanConneryIsAboutToShootYou: Her portrait as a party member is shown as if she points her gun towards the viewer.
* SpamAttack:
** Ricochet, which can have her shoot between three to five bullets at max level at the enemy party.
** With Action Boost at max level, she can repeat whatever attack she does on the next turn three times, including Ricochet.
* SpellMyNameWithAnS: One of the computer screens visible in her introductory cinematic still refers to her as "Fredrika"[[note]] the Japanese spelling of her name[[/note]] in the North American version.
* {{Tsundere}}: She is always composed and serious. Pointing out whenever she shows a lot of emotion and concern for others makes her ''really'' red in the face.

!![[TheMedic Simon Yorke]] (サイモン・ヨーク)
[[quoteright:256:https://static.tvtropes.org/pmwiki/pub/images/coolguy_1.png]]
->'''Voiced by''': Creator/DaisukeOno (Japanese), Creator/BrianBeacock (English)
Simon Yorke is the leader of the Midgard Library's investigation team sent to uncover the mysteries of Gladsheim. Starting off as the guild's Medic, he specializes in healing and restoring the party. He joins the Highlander with Arthur and Raquna after the protagonist finds Frederica.

* TheCameo: Makes a guest appearance in Etria during Classic Mode to explain Grimoire Stones to the party. [[spoiler:He later takes the alias 'Ryle' and visits High Lagaard to send an exploration team to repair the Seal of Tindalos.]]
* DeadpanSnarker: Mostly as a response to Arthur's remarks or antics.
* DoomedHometown: Simon's hometown of Gotham was [[spoiler:within a Gungnir unit's blast radius and was decimated, and Simon saved Arthur from being killed]]. Afterward, he and Arthur went to the Midgard Library.
* HeterosexualLifePartners: With Arthur.
* LabcoatOfScienceAndMedicine: He certainly dresses the part.
* TheLeader: Before the Highlander came along, and even during the course of the game he still seems to make most of the decisions.
* MagicKnight: Joins the party already knowing a few sword techniques, and can be played as a combat unit.
* TheMedic: His class.
* NotSoStoic: Teach Simon any skills that makes him inflict status elements on the enemy. Once he succeeds, there's a chance that he will laugh, if very briefly (and in a manner reminiscent of {{Mad Scientist}}s). You can also point out how he's not acting like himself ([[LampshadeHanging and he agrees!]]) when you have a private conversation during the MarathonLevel-quest.
* OnlySaneMan: Every now and again. To emphasize this, he is the only member of the group to {{Facepalm}} as a rare, but recurring sprite.
* RedOniBlueOni: The blue oni to Arthur and Raquna's red.
* SeanConneryIsAboutToShootYou: His portrait shows him just about to draw a sword towards the player.
* TheSmartGuy: Plays this role to the rest of your party.
* TheSpock: In contrast to Arthur and Raquna mostly.
* TheStoic: Not an extreme example, but when compared to the likes of Raquna and Arthur, this really stands out.

!![[KnightInShiningArmor Raquna Sheldon]] (ラクーナ・シェルドン)
[[quoteright:256:https://static.tvtropes.org/pmwiki/pub/images/canadagirl.png]]
->'''Voiced by''': Creator/ShizukaIto (Japanese), Creator/ErinFitzgerald (English)
Raquna Sheldon is a Protector from Midgard Library's investigation team, and joins the party with Arthur and Simon in Gladsheim. The daughter of a noble, her father is always worried about her. Rosa, a maid, is sent to Etria to help her and the guild in any way possible. The mansion, currently in the Sheldon name, serves as the guild's base.

* CanadaEh: An Etrian Odyssey version, anyway. It's even called Ontario, [[spoiler:which is clearly the same place given the plot twist.]]
* FieryRedhead: Has the looks and the personality.
* GoodParents: Raquna's father could be seen as a more stern version of this; he is the only parent who sends letters asking how Raquna's journey is going, and prepared her for becoming a warrior both by giving her guild a homebase (and Rosa came with it) and staging events like the MarathonLevel-quest before she left.
* HardDrinkingPartyGirl: She has an iron liver. Valerie (the pub owner) eve points out how Raquna is one of her bigger sources of income - because all of the guys who try to challenge her get drunk under the table.
* HealingHands: Has access to Cure and Party Cure in her skill tree, though she's not as adept at it as Simon.
* TheKirk: Plays this role at some points in the story.
* KnightInShiningArmor: She serves as the party's tank.
* TheLadette: ''Especially'' when it comes to drinking.
* TheLancer: Can potentially be one in terms of gameplay. She can handle the defense while the party takes shots at the enemy, while able to hurt the enemy herself with an offensive skill.
* LuckilyMyShieldWillProtectMe: Most of her skills require a shield to use.
* ModestRoyalty: She's clearly from a very important family and yet acts like a rough and tumble mercenary 24/7.
* ProperTightsWithASkirt: She's a royal wearing tights.
* RebelliousPrincess: While not a princess, Raquna is a high ranking noble who left home to become a wandering fighter.
* RedOniBlueOni: The red to Simon's blue and the blue to Arthur's red.
* SeanConneryIsAboutToShootYou: Her portrait shows her pointing the player with her sword.
* ShieldBash: When using Shield Smite and Shield Rush.
* SpellMyNameWithAnS: Japanese official media renders her name as "Racoona", and various other spellings were used by different sources before the English release.
* {{Stonewall}}: As the party's tank, her job is to soak up all the damage.

!![[SquishyWizard Arthur Charles]] (アーサー・チャールズ)
[[quoteright:256:https://static.tvtropes.org/pmwiki/pub/images/dumbie.png]]
->'''Voiced by''': Creator/ToshiyukiToyonaga (Japanese), Creator/YuriLowenthal (English)
Arthur Charles, along with Simon and Raquna, is a member of the Midgard Library's investigation team, and is the team's Alchemist. Shows up in Gladsheim with his teammates when the Highlander finds Frederica.

* TheBigGuy: In terms of gameplay.
* BuffySpeak:
** Despite his really useful profession and how there should be a lot of scientific terms to his attacks, Arthur is more prone in describing his attacks as "BOOM!"
--> '''Arthur''': I just go "Zoom!" and it goes "Whoosh!" and then "Bam!" and the enemies are like "Noooooo!" and I'm all "Hahaha!"
** This gets lampshaded during a sidequest, where he explains how to properly use a sleeping bag:
--> '''Arthur''': It's easy! Just roll it out like 'Bam!' then tie it down like 'Wham!' and then you lie down like 'Oooooh!'
* DoomedHometown: Arthur's hometown of Gotham was [[spoiler:within a Gungnir unit's blast radius and was decimated, and Simon saved Arthur from dying]]. Afterward, he and Simon went to the Midgard Library.
* FireIceLightning: His elemental formulas, as a Alchemist.
* HeterosexualLifePartners: With Simon.
* JerkWithAHeartOfGold: Can be pushy and impatient at times, but is still a good guy.
* RedOniBlueOni: The red oni to Simon and Raquna's blue.
* SeanConneryIsAboutToShootYou: His portrait shows him pointing the player with his gauntlet.
[[/folder]]

[[folder:Non-Player Characters]]
!!Rosa (ローザ)
[[quoteright:256:https://static.tvtropes.org/pmwiki/pub/images/eou10.png]]
The default guildkeeper. Specializes in cordials that regenerate stats for your party in battle. The gifts she gives you tend to be Medica and various oils.

* {{Meido}}: In both looks and personality.
* RelationshipValues: The game will helpfully point out when your relationship with Rosa has increased or reached its max value (which happens very soon into the game). This results only in the gifts and teas generally being of better quality and a few new voice clips that make her sound a bit more like a Doting Housewife (with no actual romance involved).

!!Austin (オースティン)
[[quoteright:256:https://static.tvtropes.org/pmwiki/pub/images/eou11.png]]
A master detective and possible guildkeeper after you complete his quest-tree, who acts like he owns the place and sees no problem with performing experiments in it. Specializes in telling the party stories that give one bonus per battle, whether it be negating one status ailment per party member, doing the same for binds, or resurrecting the whole team if wiped out. His gifts are low to mid level accessories.

* ArchEnemy: Has in one Baroudeur. Austin describes him as a criminial genius and a MasterOfDisguise whose only distinguishing characteristic is his twisted lip. While you can't act upon or tell Austin about it, one of the regular bar patrons is called a 'man with a twisted lip', who will regularly ask your party about Austin and his activities.
** [[spoiler:Once you max out his RelationshipValues, Austin will tell you he confronted Baroudeur at the top of a waterfall, ending with the latter's apparent death. Austin will express mild doubt, stating he thought it would take more to stop a man like Baroudeur. True enough, if you to the Golden Deer Pub afterwards the man with the twisted lip is gone, but a 'girl with a strange smile' will be there asking after Austin. Talk about a MasterOfDisguide indeed...]]
* DoesThisRemindYouOfAnything: He has this to say when he's about to start offering a bindblocking service:
-->It's a fact that you'll want to avoid having your arms and legs bound as much as possible. In the forest, at least.
** It is also possible for him to give you a ring accessory, tell you that it's as thanks for everything you've done to him, and this being accompanied with the "This is something special"-voice clip.
* {{Expy}}: Of Literature/SherlockHolmes. (Though he tried having a Watson with him, it apparently didn't work out.)
* HeroOfAnotherStory: As your relationship value increases, he'll have one of these, which culminates in [[spoiler:Baroudeur (a Moriarty expy)'s apparent death, subsequent 'revival', AndTheAdventureContinues]].
* MasterOfDisguise: He briefly impersonates Valerie to demonstrate that, according to him, it's not a difficult feat to replicate.
* RelationshipValues: Like with Rosa. He starts off sounding irritated whenever you visit, you know, ''your own guildhouse'', but eventually warms up to you and even asks "Leavin' already?"

!!M.I.K.E. (マイク)
The main computer system for the ancient Gladsheim ruins, which the Highlander was hired to investigate.

* AIIsACrapshoot: [[spoiler: M.I.K.E takes the gang's refusal to use Gungnir... poorly. His [[ElectronicSpeechImpediment speech starts to break down]] and he turns on the party, culminating in an attempt to use a half-charged Gungnir: the result would be a flattened Etria and an unscathed Yggdrasil Core.]]
* AttackReflector: Can redirect physical attacks towards the party with Hard Barrier.
* BigGood: After finding him, he plays this role for the party through the midgame. [[spoiler:[[FaceHeelTurn Then he goes completely bananas.]]]]
* TheComicallySerious: Frederica recalls a conversation she had with M.I.K.E. when [[spoiler:her father died and she went to M.I.K.E. for comfort]]:
-->'''Frederica:''' You'll always be my friend, right? You won't go away?
-->'''M.I.K.E.:''' My hardware is designed to be much more durable than yours. So yes, we will always be friends.
* DisneyDeath: Killing him proves to be the ultimate solution to stop [[spoiler:the half-charged Gungnir from going off. However, if the Highlander goes to see Frederica sneaking off, he will vaguely reactivate.]]
* FunWithAcronyms: At first, Frederica only remembers his name, and the party mistakenly believe that the "Mike" they're looking for is a human. It's short for "Memetic Installation Keeper Engine" ([[DubNameChange "Machinery Interface Knowledge Encaser"]] in Japan).
* KnightTemplar: As a machine, M.I.K.E. will follow his programming no matter what the circumstances or who gets in his way. Helpful when it involves taking down a powerful monster before it escapes the labyrinth and goes on to ravage the world. Less so when it involves ''huge'' amounts of collateral damage and a refusal to take any other options into account.
* MrExposition: Meeting someone who remembers the creation of Yggdrassil ''and'' is willing to talk about it is a big help to the party, and shifts the story's tone majorly.
* TheNeedsOfTheMany: [[spoiler:Gungnir will cause the deaths of millions of people, but M.I.K.E. reasons that it's a small price to pay for the safety of the entire planet.]]
* RobotBuddy: He's honestly proud that Frederica considers him a friend and lets him call her by her nickname.
* ShockAndAwe: His EMP skill strikes the whole party with medium to high volt-elemental damage.
* VillainousBreakdown: After refusing to activate [[spoiler:Gungnir and destroying Gimle when he tries to force the protagonists, he lapses into a MadnessMantra of "There is no alternative. To activate Gungnir is my sole purpose." Alas, he only gets worse from there.]]
* VoiceWithAnInternetConnection: Adresses the party like this as they venture through Gladsheim.

[[folder:Gladsheim Bosses]]
!!Coeurl (クァール)
A creature kept by Gladsheim's researchers for unknown reasons, until he escaped captivity and was let free to roam around the ruins.

* FlunkyBoss: If you don't kill the 2 Carmine Beaks flaking it, they'll quickly join Coeurl once you engage him. And this will make the fight a lot harder, since they are [=FOEs=].
* ForcedSleep: Whenever his HP is low, Coeurl will use Dark Cradle to inflict Sleep on the party. Usually followed by Avidya Apostle on the next turn.
* InvisibleMonsters: You can't hit this guy if you don't turn up the lights.
* HopelessBossFight: Zig-zagged. Since Coeurl hides in the darkness, he cannot be damaged normally, and you're supposed to run away from the fight. It's still possible to kill him via poison, but that would take a long-ass time.
* PantheraAwesome: Resembles a big black panther.

!!Queen Bee (クイーンビー)

The ruler of a bee colony in Gladsheim.

* InsectQueen: The Queen Bee serves as the second boss of the remake-exclusive Gladsheim. She's not aggresive by nature, but since she's nesting in the power source (which your party needs to activate), fighting her will be an unfortunate necessity.
* NonMaliciousMonster: This creature is not really hostile, but the party is forced to fight her since the Queen Bee is nesting on Gladsheim's power, causing critical power surge all over the place. Naturally, she fights back, and is more than capable to do so.
* PoisonousPerson: Spreading Shot will randomly hit 2-4 targets and may also inflict Poison.

!!Gudanna (グアンナ)

A bull-like creature found on the third floor of Gladsheim.

* ShockAndAwe: Thunderstrike deals Volt damage to the entire party.
* StatusBuff: Wild Breath increases his attack power for 3 turns.

!!Gimle (ギムレー)

An enormous tank-turret stored in the lower reaches of Gladsheim. [[spoiler: M.I.K.E. orders it to attack your party once you oppose its plans to activate Gungnir.]]

* LegacyBossBattle: She appears as an optional quest boss in the Molten Cave in ''The Drowned City'' under the name "Wicked Queen". She also part of the "Treasures Untold" quest in ''The Fafnir Knight'' alongside her ants, and the boss of the Seditious Colony side labyrinth in ''Nexus''.

* LegacyBossBattle: Outside of the first game and its remake, Fenrir appears in ''The Fafnir Knight'' as part of the "Treasures Untold'' DLC BossRush and as the boss of the Alpha Plains side labyrinth.

* LegacyBossBattle: She appears as an optional quest boss in the Molten Cave in ''The Drowned City'' under the name "Wicked Queen''. She also part of the "Treasures Untold" quest in ''The Fafnir Knight'' alongside her ants, and the boss of the Seditious Colony side labyrinth in ''Nexus''.

* LegacyBossBattle: Returns as a Oceanic Quest boss in ''The Drowned City'', and is also part of "Treasures Untold" in ''The Fafnir Knight''

* DubNameChange: From Vizurr to Visil. [[spoiler:His boss form Etreant is called King of the World Tree in Japan.]]

* NonIndicativeName: In the original game anyway, since his appearance is based on a saber-toothed cat, rather than a wolf. In ''The Millennium Girl'', his design is updated to a wolf (and by extension, making more sense of his localized name).
* PaletteSwap: Stingmaw/Barbed Tiger and Sabremaw/Sabretooth are this to Fenrir in the DS game. The former's sprite is recolored in gold, while the latter recycles the same sprite.
* WolfpackBoss: A literal example. By itself, the Fenrir is merely a powerful boss (in a game where ''every'' boss is difficult to some degree). However, if you don't take care of the nearby Skoll F.O.E.s before challenging him, they will quickly join the fight and cause even more trouble for you. The VideoGameRemake ''Etrian Odyssey Untold'' makes Fenrir much worse; he'll actively prevent you from dispatching the Skoll before the fight, forcing one of your characters into spamming Flash Bombs (and the occasional Sonic Bomb to prevent Fenrir from summoning a trio of Forest Wolves who, by the way, are immune to Flash Bombs) just so you aren't overwhelmed by numbers. The ''Nexus'' version is more forgiving: Every Skoll minus one can be dispatched without Fenrir or the other Skolls being alerted, which allows you to carefreely inflict damage to Fenrir for many of the first turns as all it will do is summon extra Skolls until a total of four is present in the area.

* {{Cernunnos}}: Duh. This mythical creature serves as the boss of the second stratum, the Primitive Jungle. In this game, it is a humanoid creature with massive ram-like horns rather than stag antlers.

* ShockAndAwe: Deals heavy Volt damage to the party with Voltwing (Thunderwing in the remake), which can also paralyze them.

* DubNameChange: Called Forest Cell in Japan, and renamed Primevil in the localization. In ''The Millenium Girl'', the name is changed to Yggdrasil Core (although there is a cutscene where it's Japanese name is displayed on a computer screen).

* [=Superboss=]: The Yggdrasil Core hides at the very bottom of the Labyrinth. It is much stronger than Etreant or the three dragons, having access to many party-wiping abilities such as Necrosis, requiring the player has advanced knowledge of the game’s mechanics just to (maybe) stand toe-to-toe with it.

* TheComicallySerious: Unnoticeable in the game itself due to the low resolution, but take a look at their in-battle illustrations in the official artbook and you will notice their facial expressions are rather silly. This is averted in the remake, where their 3D models have more serious-looking facial expressions. It's unknown if the Remaster version will update their artworks to have a more serious expression.

* ThePaladin: Protectors are known as Paladins in the Japanese version.

* StoneWall: The class is slow as molasses and can inflict decent damage at best (amplified with the Smite skill), but their HP and defense are excellent.

* {{Sarashi}}: Worn by one of the female Ronin, who otherwise resembles a {{Miko}}.

* DualBoss: Confronted together early in the fifth stratum.

* {{Cernunnos}}: Duh.

* InsectQueen: The leader of a colony of Noble Bees.

Dark Hunters are leather-clad masters of [[WhipItGood whips]] and [[CoolSword blades]], and are ''fantastic'' at dealing out damage laced with [[StatusEffects nasty side-effects]]. A few expert lashes can bind their opponents up, then siphon away the last of their life force, while a sufficiently honed blade in their hands can deal pinpoint strikes to leave their target paralyzed, confused, or petrified. On top of this, Dark Hunters may use their ''own allies'' as bait to lure unwitting monsters closer... whether their allies like that plan or not.

* ChoiceOfTwoWeapons: [[WhipItGood Whips]] and Swords. Between these, whips are more iconic of the Dark Hunters.

!!Landsknecht

!!Survivalist

!!Protector

!!Dark Hunter

!!Medic

!!Alchemist

!!Troubadour

!!Ronin

!!Hexer

!!Guildmaster

!!The Innkeeper

!!Shilleka

!!Valerie

!!Ren & Tlachtga

!!Subaltern Quinn

!!Chieftan Visil

!!Kupala

!!Fenrir

!!Cernunnos

!!Queen Ant

!!Corotrangul

!!Iwaoropenelep

!!Yggdrasil Core

!![[TheGunslinger Frederica Irving]]

!![[TheMedic Simon Yorke]]

!![[KnightInShiningArmor Raquna Sheldon]]

!![[SquishyWizard Arthur Charles]]

!!Rosa

!!Austin

!!M.I.K.E.

!!Coeurl

!!Queen Bee

!!Gudanna

!!Gimle

* DubNameChange: Goes unnamed in Japan, but Untold names her Sirar.

* StatusBuff: Can increase it's speed for 3 turns by using Nitro Boost.

* DubNameChange: His name is Snowdrift in Japan.

* StatusBuff: Aqua Veil raises his Fire resistance for 3 turns.

* TheComicallySerious: Unnoticeable in the game itself due to the low resolution, but take a look at their in-battle illustrations in the official artbook and you will notice their facial expressions are rather silly. This is averted in the remake, where their 3D models have more serious-looking facial expressions.

* TheComicallySerious: Take a look at their in-battle illustrations in the official artbook and you will notice their facial expressions are rather silly. This is averted in the remake, where their 3D models have more serious-looking facial expressions.

* DeadlyGaze: Uses Gaze immediately after his partners are offed. This skill is replaced in ''The Millennium Girl'' by the less-threatening Silent Stare, which can bind the party's head.

* AnIcePerson: His skills Flood and Ice Breath inflict ice damage.

* TheChick: Fills this role in your FiveManBand.
* DefrostingIceQueen: A downplayed example, but still. She's somewhat aloof and focused on her mission at first, but warns up to the party. This eventually culminates in asking everyone to call her by her AffectionateNickname.

->'''Voiced by''': [[Creator/KosukeToriumi Kosuke Toriumi]] (Japanese)

->'''Voiced by''': Creator/ToshiyukiToyonaga (Japanese)

* BuffySpeak: Despite his really useful profession and how there should be a lot of scientific terms to his attacks, Arthur is more prone in describing his attacks as "BOOM!"

* This gets lampshaded during a sidequest, where he explains how to properly use a sleeping bag:

The cast of ''Etrian Odyssey'' and ''Etrian Odyssey Untold: The Millennium Girl''.

* WeaponOfChoice: Bows, as fitting for their ForestRanger status.

* WeaponOfChoice: Uses [[HeroesPreferSwords swords]] as fitting for their prominence.

* WeaponOfChoice: A MagicStaff. These also include [[DropTheHammer hammers]].

* WeaponOfChoice: A MagicStaff.

* WeaponOfChoice: {{Katanas|AreJustBetter}}, fitting given their Eastern appearance.

* WeaponOfChoice: A MagicStaff.

* WeaponOfChoice: A [[BladeOnAStick spear]] as his default class.

* WeaponOfChoice: [[TheGunslinger Guns]] for her default class. Unlike other EO-universe Gunners, she is shown in cutscenes using a 'modern era' semi-automatic pistol instead of the hand-cannons, revolvers, flintlocks, matchlocks, and archaic gonne designs most other gunners are portrayed with in official media.

* WeaponOfChoice: A MagicStaff for his default class, but he starts out with a sword thanks to his Grimoire Stone.

* WeaponOfChoice: A [[HeroesPreferSwords sword]] in her default class.

* WeaponOfChoice: A MagicStaff for his default class.

Landsknechts are powerful soldiers who wield massive blades, be they mounted on [[CoolSword hilts]] or [[AnAxeToGrind handles]]. While the most balanced of the physical classes, they do lean towards offense over defense, and can even drop their defenses entirely to dish out even greater damage. In addition, they can learn how to channel fire, ice or electricity through their swords so that they aren't completely caught flat-footed by magical opponents.

* ChoiceOfTwoWeapons: Swords or [[AnAxeToGrind Axes]]. The class is known as Swordsman in the original Japanese, which is a little odd considering they can also use axes as well.