Celtic Mythology has LoadsAndLoadsOfCharacters. These are the most famous ones.

!Mortals and Half-Mortals
!! Irish
!!!Cu Chulainn
-->"''Cuchulainn was an unstoppable warrior hero in Irish legend who was renowned throughout the British Isles for his unmatched prowess in combat, his superhuman deeds, his JustinTimberlake-like good looks and his infamous "Warp Spasm" - a violent bloodthirsty berserker rage which caused his face to contort into hideous positions, made his hair to stand up on end, and prompted one of his eyes to bulge out of his head.''" (From his BadassOfTheWeek page.)
* TheAce: Boy, if there ever was one...
* AngstComa: "The Wasting Sickness of Cu Chulainn" is an entire story about his year-long illness.
* {{Badass}}: This is the guy who tied his spilled intestines to a rock so he could keep standing and killed someone AFTER he died. Definitely extremely badass.
* BerserkButton: Do not threaten the province of Ulster if you want to live. You'll get a Gae Bolg to the torso.
* BiTheWay: His relationship with Ferdia.
-->"I loved the noble way you blushed,
-->And loved your fine, perfect form..."
* BloodKnight: The type that lives for dueling, not bloodbaths. In a twist, he always challenges people to duels because that's the surest way to ''prevent'' bloodbaths (Cu Chulainn being TheChosenOne and all.)
* BurningWithAnger: Cu Chulainn was hot-tempered in a very literal sense.
-->And the snow melted for thirty feet all around him, because of the intensity of the warrior's heat and the warmth of Cu Chulainn's body. And the gilla remained a good distance from him for he could not endure to remain near him because of the might of his rage and the warrior's fury and the heat of his body.
* TheChosenOne (BecauseDestinySaysSo)
* CreepyGood: His Warp Spams were, to say the least, unsettling to behold, but he's still counted as a hero.
* DiedStandingUp: The reason he tied himself to a rock after being mortally wounded was so he could stall for time and make his enemies still think he was alive. It worked until a raven landed on his shoulder after he actually died.
* DivineParentage: He's the son of Lugh the Long-Handed, which is responsible for a lot of his badassery. The rest is being TheChosenOne.
* DoesNotKnowHisOwnStrength: One of his earlier trysts went a bit awry when he accidentally broke a woman's fingers while having sex with her. This did not end well. He also had a bit of trouble taking up arms due to the fact that he shattered just about every spear, sword, or shield Conchobar gave him, as well as seventeen chariots.
* DontWakeTheSleeper: Once as a child, when someone was once sent to wake him, Cu Chulainn struck the man in the face so hard that he shattered his skull and killed him. Nobody dared to wake him up ever again.
* EngagementChallenge: For Emer, whom he ends up HappilyMarried to.
* FullPotentialUpgrade: Not just his weapon, but his ''chariot'', too.
* GeniusBruiser: Cu Chulainn may be incredibly strong and powerful and an amazingly skilled warrior, but he's ''also'' extremely intelligent and cunning, and in fact, judging by his love life, it would seem that he actually values intelligence and good wits far more than he does good looks or skill at combat.
* HumanoidAbomination: Even when in human form , he is described in the Táin as having Multicolored Hair, four multicolored dimples in each cheek, seven pupils in each eye, and seven clawed fingers and toes on each hand/foot. He also has blood ties to the [[TheFairFolk Fomorians]]. Then there's his [[LovecraftianSuperpower Warp]] [[OneWingedAngel spasm]]
* HighPressureBlood: Entering a warp spasm caused him to spray clouds of it from his body.
* HorrifyingHero: While in a warp spasm.
* HotBlooded
* JumpedAtTheCall
* JustAKid: It wasn't uncommon for Cu Chulainn to be underestimated because of his age
* KidHero: Cu Chulainn's exploits start from as early as age five, and his most famous one (the ''Tain'') occurred when he was only seventeen.
* LadykillerInLove: Cú Chulainn sleeps with dozens of women and yet was HappilyMarried to Emer. This is one of the ''very'' few mythologies that distinguish his [[ReallyGetsAround active libido]] from his genuine love for Emer.
** This is also PlayedWith--Emer is perfectly fine with it because she doesn't feel threatened ''at all'' by the other women and knows that it's purely sex, unlike Ms. HollywoodNerd.
* LongHairedPrettyBoy
* LovecraftianSuperpower: The warp spasm.
* {{Mangst}}: He accidentally killed his only son.
* MulticoloredHair: Described as having hair that starts blond at the ends, red in the middle, and brown at the roots.
** Cu Chulainn is said to have inspired the trait of putting lime in one's hair to stiffen it for battle; something started when the men of Ulster tried to imitate the Hound's hair during the warp spasm. Lime in the hair will eventually lighten it, leaving your roots dark with regrowth, the middle hair not yet completely damaged, and the tips being absolutely ruined.
* OneManArmy: The ''Literature/TainBoCuailnge'' is less Connacht vs. Ulster and more Connacht vs. one incredibly badass teenager.
* OnlyKnownByTheirNickname Although the real name is Setanta while Cu Chulainn means "The hound of Chulainn" (a title he got after killing Chulainn's hound and taking its place)
* PrettyBoy: At least when he's not in Warp Spasm mode.
* ReallyGetsAround
* RuleOfSeven: Seven fingers on each hand, seven toes on each foot, and seven jeweled pupils in each eye.
* SecretTestOfCharacter: He gives one to Emer by testing her wits with riddles, and she passes with flying colors by testing him with her ''own'' riddles. [[GeekyTurnOn This is primarily what he saw in her.]]
* SoBeautifulItsACurse: Cu Chulainn is listed in "The Courting of Emer" as having exactly three faults: "that he was too young and smooth-faced, so that young men who did not know him would be laughing at him, that he was too daring, and that he was too beautiful." Of course, this was less of a problem for ''him'' than it was for just about every other man in Ulster, who unanimously decided they needed to get him hitched before he ended up bedding half the populace. [[ReallyGetsAround It didn't work]].
* SuperpoweredAlterId: The Warp Spasm.
* TechnicolorEyes: Seven jeweled pupils in each eye[[note]]Or seven total - three in one and four in the other - if you go by the Wooing of Emer.[[/note]]
* TooCoolToLive: Invoked - Cu Chulainn was prophecised to be incredibly accomplished, but also very short-lived.
* TrainingFromHell: With Scathach, on Emer's request.
* UnstoppableRage: When he's in a warp spasm, he will attack ''friend and foe alike''
* WarriorPoet
* WiseBeyondTheirYears
* YoungerThanTheyLook: According to the ''Tain'', the Wooing of Emer (in which Cu Chullain is clearly a young man) apparently happened when he was ''six''.

The beautiful and intelligent daughter of King Forgal, and Cuchulainn's wife. She may not be an ActionGirl, but she is definitely a character in her own right.
* BettyAndVeronica: Cuchulainn has to choose between Emer (Betty), his wife of many years, and Fand (Veronica), a fairy woman he's known for about a week. Due to a combination of LateCharacterSyndrome and Emer being shown as a spirited and interesting person in her own right, Fand comes off as a RelationshipSue.
* DeadpanSnarker: When Cu Chulainn bragged that he was strong enough to defend against a hundred men, she called him a little boy play-fighting with his friends.
* EmbarrassingNickname: Emer calls Ireland's Most Badass Warrior "little hound." They are always conveniently alone or out of everyone's earshot when she does it.
* EngagingConversation: Combined with a SecretTestOfCharacter, since Cuchulainn deliberately invoked it.
-->'''Emer:''' You think you're the only one who can make up shit on the spot, little boy? BringIt.\\
[Insert a conversation composed entirely of riddles that ''[[GeniusBonus nobody short of a historian-poet-linguist can understand]].'']\\
'''Cuchulainn:''' [[GeekyTurnOn Holy fuck, marry me.]]
* HappilyMarried
* HollywoodNerd: Frequently referred to as the most beautiful ''and'' smartest woman in Ireland.
* MaleGaze: There's a ''paragraph'' of Cu Chulainn complimenting her looks. By saying [[Film/MontyPythonAndTheHolyGrail she's got really nice tracts of land.]] Seriously:
-->'''Cuchulainn:''' Fair is this plain, the plain of the noble yoke.\\
'''Cuchulainn, to Laeg:''' When I said, "Fair is this plain, the plain of the noble yoke," it was not the plain of Bray that I praised then, but the shape of the maiden.
* MyGirlIsNotASlut
* ProperLady: She is said to possess the six gifts of womanhood: beauty, a sweet voice, needlework, eloquence, chastity, and wisdom.
* RebelliousPrincess: One of the oldest examples, and proving that you don't need to be an ActionGirl to be awesome.

!!! Aoife
A deadly warrior, whose rival[[note]]and in some versions, sister[[/note]] Scathach gave Cu Chulainn his TrainingFromHell. One of Cu Chulainn's flings, and the only one he got pregnant; after she almost defeats him in combat, he decides the two of them must have a son. Cú Chulainn left Aoife a ring and told her to give it to their son, who was to be named Connla, and to send him to Ireland when the ring fit his finger. Along with a [[{{Geas}} bunch of awkward conditions.]] Connla went to find his father, and [[WhatTheHellHero in one of the weirder episodes of the Ulster Cycle]] it [[{{Understatement}} did not go well.]]
* DarkActionGirl: She ''is'' pretty badass, and Cú Chulainn only gets the better of her through [[GuileHero trickery.]]
* ShmuckBait: Poor Connla.

!!!Fionn mac Cumhaill
An Irish hero with one of the greatest names ever - it is usually anglicised as '''Finn [=McCool=]''' - Fionn was the leader of the Fianna, [[BadassArmy a band of legendary warriors]]. He's most famous for (accidentally) gaining the wisdom of the Salmon of Knowledge when he burnt his thumb while he was cooking the thing for his master, meaning whenever he wanted to access that wisdom all he to do was suck his thumb.
* {{Action Pet}}s: His hounds Bran and Sceolach are actually his ''cousins''; their mother was [[BalefulPolymorph cursed into the form of a dog]] when she gave birth, resulting in the twins being {{Mode Lock}}ed. They grew up with the combined abilities of humans and dogs, and are sometimes said to be {{Monster Progenitor}}s for the [[http://en.wikipedia.org/wiki/Irish_Wolfhound Irish Wolfhound]] breed.
* AwesomeMcCoolname
* {{Expy}}: Bizarre example. Look at his description versus Taliesin below and swap out 'Salmon of Knowledge' for 'Potion of Knowledge'. You'd think thumb-based origin stories wouldn't be so common. Of course due to the age of the material there's no way to tell if Finn is Taliesin's Irish counterpart or Taliesin Finn's Welsh one.
* HealingHands: An indirect version: his hands could imbue water with healing properties.
* KingInTheMountain: Supposedly sleeping in a cave beneath Dublin, to awaken to defend Ireland in her hour of greatest need.
* LockedIntoStrangeness: Fionn received his signature white hair when a curse [[OvernightAgeUp turned him into an old man]]. The curse was soon broken, but his hair stayed white.
* OnlyKnownByTheirNickname: In a similar way to Cu Chulainn. Fionn's real name was Demna, while he named named "Fionn"(meaning "fair of hair") because of his white hair.
* OurGiantsAreBigger: Some stories depict him as a giant rather than a normal man.
* WarriorPoet: Yet another one.

!!!Queen Medb/Maeve
This lady is the Warrior Queen of Connacht, and you do not want to get on her bad side. She's known for her ego, sexual endeavours, and, though she's more bloodthirsty than the more famous heroes, she's a renowned guardian of the land. It's theorised by some that she might have been a mythical goddess.
* AlasPoorVillain: Consider the deeds of the {{Badass}} DarkActionGirl in her lifetime. Then consider that she was taken down by a piece of cheese while she was taking a bath.
* ArchEnemy: Conchobar mac Nessa, king of Ulster. Through a marriage arranged by her father, he was her first husband and she left him later on after having one son by him. After a political assembly at Tara, he raped her. (It's probably no coincidence that she required all her following husbands to be without meanness.) She hated him so much that when a druid told her that her son Maine would kill Conchobar, she renamed all of her seven sons so she wouldn't have all her eggs in one basket. Turns out the druid was talking about a different Conchobar.
** Also Ulster, as in the land itself. She made a path through the landscape that would 'forever show her contempt' for the place. We did warn you not to get on her bad side. The legend is she is also buried upright, keeping an eye on her enemies there.
* BlackComedy: See AlasPoorVillain above. I mean, come on, she was killed by a piece of cheese! With a slingshot! While bathing in a lake!
* DarkActionGirl: Defeated all her siblings in combat to prove herself {{Badass}}, or so she boasts to her husband as they duel with their egos across the pillows. Not an UnusualEuphemism, as it turns out. She also murdered a pregnant woman and later waged one of the most epic wars in Irish legend to steal a bull (still not an UnusualEuphemism) so she'd be more wealthy than her husband.
* GeniusBruiser: Probably, since not only did everyone worth noting inside and outside her kingdom come to her for advice since her judgement was greatly valued, but she also deserved her title of warrior queen.
* GodSaveUsFromTheQueen: Her enemies certainly felt this way about her, but to her own subjects she was wise and fair.
* {{Hypocrite}}: She has her final husband, King Ailill, killed after he cheated on her.
* LadyOfWar
* ManipulativeBastard: Her favourite tokens of bribery were riches and sex slaves, and even the off time she fails you can't help but admire how conniving her ploys were.
* MyGirlIsASlut: She made it very clear that if a man wanted to marry her he had to meet the following criteria: he had to be without meanness, fear and jealousy. The last one was because she really got around. She also wasn't above trading sex for bargains with her enemies.
* {{Pride}}: It's likely one of the reasons she fell for Ailill was because he was able to match her AwesomeEgo. Expect plenty of [[BadassBoast Badass Boasts]] to follow.
* ReallyGetsAround: Any time Maeve is mentioned she's then followed by a list of many husbands and/or lovers.
* WellExcuseMePrincess: She and Ailill have a few moments.

!!!Conn of the Hundred Battles
An Irish High King around the 3rd century A.D., friend of Fionn mac Cumhaill.
* AFatherToHisMen: So much as he'd even go to war on behalf of them.
* AuthorityEqualsAsskicking: Naturally.
* BadassArmy/EliteArmy: Controlled the Fianna at the point in time when Fionn mac Cumhaill was their leader. This is a given.
* BecauseDestinySaysSo: The Stone of Destiny at Tara roars when he steps on it, which means he's going to be King, then the god Lugh tells him how long he will reign and the names of the kings to follow him.
* DeclarationOfProtection: He refused to banish his second wife, even though her presence was allegedly causing famine.
* DidNotGetTheGirl: She was banished anyway after Conn's son challenged her to a game of fidchell and she lost.
* TheGlovesComeOff: When Mug Nuadat came back after Conn forced him and his forces to flee for Spain, not only did he defeat Conn and divide their land in two in a treaty of his own devising, but then he broke his own treaty and tried to take the rest of the land. Conn was thoroughly not amused at this point and retreated, regrouped and first defeated Nuadat's allies in the north, then marched south and killed Nuadat in a surprise night attack. If he knew what was good for him, he would've stayed in Spain.
* HappilyMarried: Both his marriages were good, though both ended in tragedy.
* HeartbrokenBadass: Probably had a bout of this after his second wife was banished, and maybe after his first wife died.
* HeroicSpirit: Given the perseverance required for those 'Hundred Battles'.
* HitAndRunTactics: Used these well in defeating Nuadat.
* PapaWolf: to just about everyone, providing they weren't his enemies.
* RomancingTheWidow: After hearing his wife had died, a fairy woman sprung up out of the blue and agreed to marry him.
* TheStrategist: He had to be, given that he spent most of his 20-50 years (accounts vary) fighting rival tribes off his land, waging full-fledged war against invaders and enemies and helping those who came to him for protection.

!! Welsh
!!! Taliesin
A major Welsh cultural figure, he was born a mortal boy named Gwion Bach. The goddess Cerridwen chose him to stir a potion containing all the knowledge in the world, and when the potion started bubbling, a few drops of the potion landed on his finger and he instinctively stuck it in his mouth, accidentally gaining the potion's knowledge and pissing off Cerridwen when she found out. He tried to flee from her by turning into various animals, then into [[NeedleInAStackOfNeedles grain of wheat amidst more wheat]]. Cerridwen then turned herself into a hen and ate him. Eventually she realized she was pregnant, planned to kill the baby when he was born, but in the end couldn't bring herself to because he was so beautiful. So she put him [[MosesInTheBulrushes in a basket and sent him down the river,]] where a poor couple found him and named him "Taliesin." He became the greatest bard in the world.
* AwesomeMcCoolname: Taliesin can be translated as roughly '[[BishieSparkle shiny]] [[BigOlEyebrows eyebrows]]'. See below trope.
* {{Bishonen}}: His name Taliesin means "shining brow." And, you know, being so beautiful that Cerridwen instantly stopped being mad at him.
* CanonWelding: Occasionally he's mentioned in Arthurian mythology as Arthur's bard.
* MagicMusic
* NoPronunciationGuide: 'Tal-yes-seen' or 'Tally-essin'.
* [[{{Seers}} The Seer]]
* TheSmartGuy

!!!Math ap Mathonwy
The title character (though not the protagonist) of the [[Literature/{{Mabinogion}} Fourth Branch of the Mabinogi]] and king of Gwynedd. For [[HandWave no logically explained reason]] he had to rest his feet on a [[VirginPower virgin's]] lap 24/7 or else he'd die. The only exception is during warfare. Most remembered for his eccentricity and many unusual acts.
* BadassFamily: Great uncle of another famous folk hero, Lleu Llaw Gyffes.
* BalefulPolymorph: His magic of choice.
* CoolAndUnusualPunishment: While he is away fighting a war engineered by his nephews Gilfaethwy and [[MagicKnight Gwydion]] they then sneak into Math's stronghold and rape his foot-holder maiden, Goewin. In punishment, Math [[BalefulPolymorph transforms]] the brothers into a different animal every year, [[KarmicTransformation one male and one female]], until they bear three offspring together.
* CurseEscapeClause: Has to rest his feet in a virgin's lap 24/7, except when his kingdom is at war.
* RoyalsWhoActuallyDoSomething: Led his army into battle and finished the war against Dyfed.

!!!King Arthur
See [[Characters/KingArthur here]].

!Gods and TheFairFolk
!! Irish
!!!Lugh the Long-Handed
TheAce of the gods, associated with the sun ([[ScienceMarchesOn according to Victorian archaeologists, anyways]]), fertility, and [[{{Badass}} liberating Ireland from the monster Balor]]. Not much is known past that, but he ''did'' have a fling with his hot midwife when she helped his wife give birth safely--the midwife in turn had Cuchulainn, Ireland's greatest hero, and the rest is (alleged) history. He is sometimes considered to be the Morrigan's husband, due to both deities being powerful warriors associated with, well, ''fertility''.
* TheAce: Of course. He got into the Tuatha de Danaan solely because while they had masters of all fields, none were a master in all fields like him.
* {{Bishonen}}: Yet again. The Celts love these.
* ComboPlatterPowers: Comes with the territory of being an ace.
* HandsomeLech
* LightIsGood: God of the light in general, and fertility. Getting any "evil" vibes from that? Even if he is not the Sun god as previously thought - a role that might actually belong to his foe, [[LightIsNotGood Balor of the Evil Eye]] -, he still represents the light of the thunder flashes.
* ReallyGetsAround: And nobody minds.
* ShockAndAwe: A popular interpretation is that he is actually some sort of thunder god, with his name more or less meaning "lightning flash".
* WarriorPoet: Literally a warrior and a poet. The Irish love the trope's version as well.
* WhatDoesHeSeeInHer: He's (possibly) married to ''the Morrígan,'' of all people. Then again, [[NotSoDifferent they]] [[ReallyGetsAround have]] ''[[{{Badass}} a couple]]'' of things in common...[[note]]Followers of both gods emphatically state that they can't stand each other, and this was most likely a Wiccan influence.[[/note]]

!!!The Morrígan
The most infamous Celtic goddess, her name means "great/phantom queen." Due to the fragmented nature of Celtic mythology, she is associated with several related figures--the Washer At the Ford (a harbinger of death who washed the clothes of the soon-to-be-dead in the river), Macha (either a goddess or one of TheFairFolk, forced to run a race while pregnant and ended up giving birth after winning), and Badb, another warrior-goddess. There have even been attempts to link her to Morgan le Fay of Arthurian legend, even though that's the Welsh tradition and completely different. Nobody's really sure of anything with her, aside from the facts that 1) she is a war-goddess, and 2) nobody's sure of ''anything'' with her. Tellingly, she is one of the few deities who ''wasn't'' BroughtDownToNormal and didn't get her SerialNumbersFiledOff.
* BloodKnight: Unusual in that she's a bloodthirsty ''female'' deity, and uses her wits to ''cause'' bloodbaths instead of solve them. She draws a marked parallel with [[Myth/HinduMythology Kali]] in that respect; the pattern is also similar to Enyo, goddess of destruction in [[Myth/ClassicalMythology Greek Mythology]], who did the same thing.
* TheChessmaster: If you want to [[BreakTheHaughty completely ruin someone]] ([[BreakTheCutie even if they don't deserve it]]), you've got to be smart.
* ColorCodedForYourConvenience: Modern artists portray her dressed in black with black hair, when in the actual myths her hair and clothes were frequently ''red''--red was the ancient Celtic color of death. The former isn't ''wrong,'' though, since it's more of a PaletteSwap than an actual mistake.
* CrypticConversation: Many unfortunates piss her off because they can't understand what the hell she's saying.
* DarkActionGirl: Doesn't get much darker and action-y than her.
* DarkIsNotEvil: For all that she makes people wet themselves, she is still Chaotic ''Good,'' and she will [[KarmicJackpot generously]] [[GodWasMyCopilot reward]] [[KingIncognito people]] who pass her tests.
* {{Flanderization}}: For [[DarkerAndEdgier some]] reason]], Goths view her as a [[BrokenBird misunderstood]] and [[TheHighQueen regal persona]] rather than the {{Badass}}, [[HairTriggerTemper ill-tempered]], [[DisproportionateRetribution insanely vengeful]] figure she is in myth.
* GodSaveUsFromTheQueen: On one hand, she's an amazon who has no problem trading sex for little things like lifelong glory and prosperity. On the other hand, if you piss her off she will ''fuck your shit up''. She won't just kill you--first she'll ruin everything you stand for as you watch helplessly (but not ''quite'' enough to send you over the DespairEventHorizon), and then she'll make ''absolutely sure'' your death is long, agonizing, and pointless.
* TheHighQueen: On a good day.
* NamesToRunAwayFromReallyFast: When someone's name literally means "phantom queen," you'd best tread carefully around her.
* ReallyGetsAround: Her fertility aspect is overshadowed in modern times by her violent tendencies, but ''very'' obvious in the myths.
* SadlyMythtaken: Some people compare her to [[SmallReferencePools Athena]], when she's the exact opposite--Athena was a war goddess who dealt more with strategy, while the Morrigan positively ''loves'' carnage.
* SpellMyNameWithAnS: Even worse than usual in Celtic myth. She's either the Morrígan/Mórrígan/Morríghan/Morrigu, or Mor-Ríoghain. All of them are technically correct, since they mean "phantom/great queen".
* SpellMyNameWithAThe: ''The'' Morrígan. Understandably, most people drop the "the" since it gets awkward after a while.
* ThingsThatGoBumpInTheNight: She announced her presence by screaming war-cries to wake everyone up. Whoever had the balls to check would be rewarded if they helped her out, or punished if they pissed her off.
* TraumaCongaLine: One of her specialties, and the main reason she's so pants-wettingly feared.
* UnusualEuphemism: Characters often make reference to "the Morrígan's harvest" after a battle--that being the eyes, souls, or heads of the dead. After a battle, everyone still alive would clear the hell out to ensure that the Morrígan's "harvest" went peacefully.
** Also, there is the phrase "Garden of Morrigan," or some variation, in referrence to how battlefields tend to become overgrown with plantlife due to all that fertilizer left behind. Which is also beleived to be the source of her association with ''[[FertileFeet fertil]][[ReallyGetsAround ity]]''.

!!!The Dagda
The father-figure of the Tuatha de Danaan. Another deity with a title for a name, "the Dagda" means "the good god" when literally translated. He was one of the first High Kings of Ireland, the god of music and poetry, and known for a magic cauldron that could feed any number of people without a problem.
* {{Acrofatic}}
* BalloonBelly
* BigEater: If you have a cauldron that can feed hundreds of people, you probably like eating.
* BigFun: Basically like the Laughing Buddha UpToEleven. Some religions like to make their father gods stoic, loving figures or chisled handsome beasts. We got the comical, singing, dancing DirtyOldMan with [[PantyShot his ass hanging out of his trousers]]. [[CrazyAwesome And he is awesome for it.]]
* BiggusDickus: One of TheOldestOnesInTheBook.
* TheBigGuy
* BoisterousBruiser: Often portrayed as this.
* MagicMusic: He was such a skilled musician that he could make people cry, cheer, and sometimes ''[[BrownNote kill them]] [[DiedHappilyEverAfter from sheer awesome.]]'' Having a magic harp specifically for that purpose didn't hurt.
* MundaneMadeAwesome: One of his stories basically consists of him one-upping the [[FishPeople Fomoire]] when they [[GenreBlind dare him to eat a large amount of porridge.]]
* ReallyGetsAround: Noticing a theme? Notably, he slept with the Morrigan in exchange for her help in fighting the Fomorians. In some retellings he slept with a [[FishPeople Fomorian girl]] instead. With his large stature repeatedly commented upon. His stories tend to have a common theme of FanDisservice..
* WarriorPoet: Another one.

!!! Aengus Óg
The Irish god of love, mainly romantic, but he shows a strong paternal streak in several myths. He likes to help people out of tight spots, but can also be a warrior of vengeance when he's sufficiently outraged, normally by a wrong done to someone close to him. His most well-known story is probably Aisling Oenguso, The Dream of Aengus.
* AdultFear: A very deep and jarring instance in 'The House of the Two Pails.' Aengus is unable to help his depressed foster-daughter Enya in spite of his ''immense'' efforts to do so, and when she discovers her conversion to Christianity means that [[YouCantGoHomeAgain she can no longer live with the pagan gods]], he watches her die of grief.
* AngstComa: In 'The Dream of Aengus'. A beautiful woman comes to see him every night in his dreams and plays the harp to him, but he cannot touch her. He goes into a wasting sickness until his parents find the girl in real life.
* DeclarationOfProtection: He does this a few times. For his foster-son Diarmuid in 'Diarmuid and Gráinne', for his foster-daughter in 'The House of the Two Pails', and for his foster-father's wife Étaín in the 'The Wooing of Étaín'.
* ExactWords: He tricked the Dagda out of ownership of the Brugh na Boinne by claiming that he wanted to stay in the Brugh for "a day and a night." But Gaelic has no articles, so it translates simply to "day and night," which ''also'' means "day and night" in the permanent sense.
* GoodParents: He has ''many'' foster-children (some of which are the other gods), and loves all of them very deeply.
* PrettyBoy / HotGod: Even among the other gods, his prettiness is notable.
* [[UglyGuysHotDaughter Ugly Guy's Hot Son:]] He's the Dagda's son.

!!! Nuada Airgetlám
The first king of the Tuatha de Danann. He was highly respected and close friends with the Dagda and Lugh.
* BadassTransplant: Possibly the UrExample.
* TheLancer
* MeaningfulName: Airgetlám literally means 'silver hand', which is fitting since Nuada literally has a silver hand.
* NiceGuy: Pretty much as nice as they come in Irish mythology. Even after regaining his throne from an unpopular king (Bres) after he lost the arm and got a new one, he gracefully steps aside to allow Lugh/the Dagda (depending on who you ask) to take over later on after meeting the guy and deciding he was pretty swell and good enough to lead his people in battle.
* OnlySaneMan: Once you take a look at everyone else's track record. He'd often make fairly reasonable requests, such as halving the territory with the Fomorians and, after only just having his own arm chopped off, insisting Sreng fight him with one of his arms tied behind his back. On both of those counts his negotiations were turned down.

!!!(Saint?) Brigid
An immensely popular figure even today, she is one of the patron saints of Ireland and second only to St. Patrick (yes, that one). She presides over [[ComboPlatterPowers healing, poetry, and smithwork]]--some believe that she was [[BroughtDownToNormal originally a goddess]] who had her SerialNumbersFiledOff, as that fits the "triple goddess" concept. (And Christianity's general tendencies.) Another "coincidence" is that her festival day is February 1, the day of Imbolc (and Goddess!Brigid's sacred day) in the pagan communities. St. Brigid's Well is a [[IncrediblyLamePun well-known]] landmark for those who suffer chronic illness or injury. She is also associated with fire, and before Christianity set in there was a temple where her "sacred flame" was constantly tended to by priestesses/nuns.
* TheChick
* ComboPlatterPowers
* ContinuitySnarl: We know that Brigid is in charge of healing, poetry, and smiths. We don't know much else about her--or we don't know ''who'' knows much else about her, because everyone's arguing over who gets her in the first place.
* TheHeart: She was so beloved that the Christians adopted their own version of her instead of demonizing her like the rest of the Celtic pantheon.
* LightEmUp[=/=]ThePowerOfTheSun: May have been once a solar goddess. Irish and celtic brittish mythology are definitely full of them - Étaín, Áine, Sulis, Grian -, which probably were other names she went by.
* OvershadowedByAwesome: Compared to other gods and especially the Morrigan, she gets rather little mention in myth. Similar to Hestia of Greek mythology, it's probably because she's the sane/boring goddess of the home.

!! Welsh
The fairy wife of King Pwyll in Welsh Mythology. He offered to marry her when she said she didn't like her other suitor, so she accepted. When her first son was born, he vanished and the maids panicked, not only because their king's heir was gone but because they might be blamed for it. So they [[KickTheDog killed a few puppies from a recent litter, smeared the blood on the unconscious Rhiannon, and said she'd eaten her own son in a fit of madness]]. ...Yeah. This wasn't good for Rhiannon, and everyone started howling for [[FantasticRacism the evil fairy to be killed]]. Pwyll really wanted to believe Rhiannon but he was also responsible for, you know, ruling, so to compromise he said that she'd have to carry visitors from the courtyard to his hall on her back for seven years. Luckily her son was alive, had been named Pryderi by his adopted parents, and reunited with them when he was of age. Past that the different versions of the story get a little contradictory, but everything sorted out in the end. Except for Pwll getting killed in a battle, but Rhiannon eventually married Manawydan, another of the Fair Folk.
* BroughtDownToNormal: Both in-story (a sidhe woman who married a human) and meta, if you believe that she was once a horse-goddess with her SerialNumbersFiledOff.
* CoolAndUnusualPunishment: Carrying visitors from the courtyard to Pwll's hall for ''seven years.''
* CoolHorse: Rhiannon's mount when Pwyll met her. Rhiannon's punishment essentially forced ''her'' to become a HorseOfADifferentColor, and the vanished foal grew up with Pryderi and became his trusted mount. Some believe Rhiannon to be a goddess due to the recurring motif, even though there's no actual evidence in the Mabinogion.
* DeadpanSnarker: Yep.
* FantasticRacism: Definitely. Strangely enough, Pryderi doesn't get much trouble despite being her son.
* GoodIsDumb: Pwyll is an honorable, caring man, a just king, and a seasoned warrior... Who is rather lacking in sense.
* KickTheDog: She was the figurative dog who was kicked, and there were literal puppies that were ''killed'' to frame her.
* SincerestFormOfFlattery: Some Renaissance Faires have ''banned'' the name "Rhiannon" because so many people have it already.