The Main Character
- The Ace: Like most Dragon Quest heroes, he grows into this as the game goes on.
- Anime Hair: Blue and spiky.
- Bash Brothers: Carver's party chats with him seem to suggest this kind of relationship between the two.
- Can't Drop the Hero: He is one of two characters you may not leave with Patty.
- Chick Magnet: Plenty of ladies show interest him throughout both worlds.
- Combat Medic: Like most Dragon Quest main characters, he naturally learns Heal.
- Dump Stat: His natural Resilience is pitiful for most of the game, taking until about Level 60 to pass the Squishy Wizard.
- Expy: Looks like a palette swapped Gohan.
- Hello, [Insert Name Here]: Selected by the player. Meaningful Name or Punny Name can often result.s
- Heroic Mime: Has no dialogue when under player control.
- The Hero: As a main character, he exemplifies this.
- Jack-of-All-Stats: Although his early access to the Hero class makes him become a Lightning Bruiser towards the end of the game.
- Mr. Fanservice: Shows more skin than any other Dragon Quest Hero, and is clearly quite well-toned.
- Not Blood Siblings: Turns out he and Tania are not blood siblings.
- Precision-Guided Boomerang: Is able to wield all boomerang weapons.
- Royals Who Actually Do Something: He's a prince who went out on a mission to avenge his parents' cursed fates.
- Ship Tease: Some with both Tania and Ashlynn. He gets even more with Ashlynn in the ending.
- Star-Crossed Lovers: Seems to become this with Ashlynn during the ending.
- You Gotta Have Blue Hair: Literally about as "blue" as the definition of "blue" can be.
- Bare-Fisted Monk: Seems to be geared towards the Fighter class initially, though the player can mess around with this somewhat.
- Bash Brothers: His party chats with the Hero imply that they're this.
- The Big Guy: Just look at him - he's a muscular hunk.
- Book Dumb: Tends to have a somewhat blue collar take on higher learning.
- Boisterous Bruiser: Fitting his nature as a wandering warrior.
- Dub Name Change: Hassan became Carver.
- Dumb Muscle: He is not stupid, but he can be slow to catch on sometimes.
- Family Business: Ran away from being a carpenter to be a wandering martial artist. Retires in the end to take up his father's trade.
- Fire-Forged Friends: Initially the Hero's rival for the title of guardsmen, the two of them put aside their differences and team up and become inseparable from there on out.
- Gentle Giant: He's a big friendly guy.
- Graceful Loser: While competing with the Hero for the title of a soldier in the DS remake, he says that if he doesn't win, he'd rather you do.
- HeelFace Turn: While not ever a villain, he goes from a bully to an ally in the early parts of the game.
- Jerk with a Heart of Gold: Initially kind of a dick to the Hero, once they join forces he becomes his best friend and an all around nice guy to be around.
- Averted in the DS remake, where he's polite from the get go.
- Mighty Glacier: Excellent HP and strength, but rather slow.
- Undying Loyalty: Towards the Hero, which really shows in his late game party chats.
- You Gotta Have Blue Hair: It's pink, actually.
- Action Girl: Evident from the moment she appears, as she has no hesitation about facing Murdaw.
- Bitch in Sheep's Clothing: Somewhat. While Milly is a nice person, she tends to be quite snarky around some of the more obnoxious characters the party works with and also appears to be the one most willing to go to extremes to accomplish goals. Her Dark and Troubled Past probably plays a part into this.
- The Chick: She's rather calm and keeps the peace in the party.
- Cool Big Sis: Functions as one to the entire party. Is actually one to Terry.
- Dark and Troubled Past: There's a lot implied, possibly including Rape as Drama.
- Deadpan Snarker: She has plenty of this if you pay attention to her party chats, generally in the form of back-handed compliments.
- Dub Name Change: Mireyu became Milly. She was Milayou in Dragon Warrior Monsters.
- Expy: Looks more than a little like Android 18.
- Fortune Teller: Partially, as she learned from Madam Luca.
- Guest-Star Party Member: At first. She soon joins the party for good.
- An Ice Person: She learns ice spells naturally.
- Milly Debuted in Dragon Warrior Monsters: The spinoff was released outside of Japan about 10 years before her official debut game was.
- The Medic: She joins the party already knowing healing and buffing spells.
- Parental Abandonment: Another part of her Dark and Troubled Past.
- Spell My Name with an "S": Mireyu/Mireille/Muriel/etc... The localization went for 'Milly'.
- Squishy Wizard: Subject to change as she gains levels, depending on how you develop her.
- The Stoic: Tends to keep a pleasant calm through most situations, making her both a great Team Mom and Deadpan Snarker. This goes away if you take her to Felonia, where she gets thrown into a mini Heroic BSoD.
- Team Mom: Implied through party chats.
- World's Most Beautiful Woman : While not explicitly stated, Milly's beauty is commented on far, far more than any other female character in the game. In fact, it largely determines her backstory. Milly is sold first as a child to Felonia's local crime syndicate, who bought her from her foster father because she was a 'real looker', and later to the King of Felonia as a dancer. Her beauty during her time as a dancer for the king of Felonia was said to be so great that the previous queen of Felonia was driven wild with jealousy, and had Milly thrown in the dungeon as she was convinced her beauty had come from supernatural means. It is there that she was given the ocarina used to summon the dragon in the game's opening by a dying prisoner.
- You Can See Me?: She is able to see the hero and Carver when they arrive in the dark realm.
- Action Girl: She's always ready to unleash spells on evil
- Big Eater: An informed ability, since we only hear this through party chat.
- But Now I Must Go: Her fate in the ending.
- Can't Drop the Hero: Strangely, this applies to Ashlynn as well as the Hero, despite the fact that all events involving her are optional, and, like even the Hero, it is optional to have her in the main party of four.
- Deadpan Snarker: Although not quite to the same level of deadpan or snarkiness as Milly reaches, Ashlynn tends to snark more frequently.
- Dub Name Change: "Barbara" in the Japanese version.
- Expy: Bears quite a resemblance to Marle, and by proxy Bulma. She's also similar in design and attitude to Lina Inverse.
- Fiery Redhead: Hair color and attitude both match.
- Genki Girl: She's perky and upbeat.
- Hair Color Dissonance: Her hair sometimes looks more blonde than red.
- Implied Love Interest: Due to the game's lack of complex character interaction and the Hero's lack of any dialogue, the most romance she has with the Hero comes in the form of several flirty party chats.
- The Lancer: She'll make herself heard even if the group's opinion is different.
- Magikarp Power - Ashlynn is extremely weak at first, especially if you make her first vocation a Mage, but with enough work and patience to make her a Sage (and possibly Armamentalist), she becomes the best spellcaster in the game, with devastating offensive spells and healing spells on par with (or possibly even exceeding) Nevan.
- Mini Dress Of Power: Her design uses this to show she's not to be messed with.
- Playing with Fire: She learns fire spells naturally.
- Quest for Identity: She begins as an invisible amnesiac, noting how rotten the combination is.
- Ship Tease: With the Hero. They become Star-Crossed Lovers in the ending.
- Squishy Wizard: At first. She can be made into a much better fighter later.
- Star-Crossed Lovers: Seems to become this with the Hero during the ending.
- Tsundere: Mostly dere dere around the Hero and the rest of the party, but gets tsun tsun around annoying people i.e. Terry.
- Valley Girl: Talks like one relatively frequently.
- Whip It Good: The only humanoid character who can wield all types of whip weapon in this game.
- You Can See Me?: When you first meet her.
- Adorkable: After traveling with the party for a while and becoming nicer, Nevan's naivety quickly puts him into this territory.
- Bald of Awesome: Without his hat on.
- Blow You Away: He learns wind spells naturally, like a priest.
- Bratty Half-Pint: Initially at least. He gets better after spending some time with the party.
- Child Mage: An accomplished cleric at a young age.
- Child Prodigy: Apparently, he's the young prodigy of Ghent Village, but it is never explained in what sense this is in.
- Dub Name Change: From Chamoro to Nevan.
- Jerk with a Heart of Gold: At first, he and the Elder blow off King Somnius's request to aid the party, with more than a hint of arrogance. Then he gets a message from a higher power and immediately changes his tune, spending the rest of the game as a humble and and kind person.
- The Medic: He joins the party knowing Heal and Midheal.
- Nice Hat: It evokes wings and a bandanna without being either.
- Oracular Urchin: Especially when Rubiss speaks through him during his introduction.
- Parental Abandonment: His parents aren't around or really even mentioned.
- Raised by Grandparents: It's never really explained what happened to his parents.
- Shorter Means Smarter: The shortest party member is also The Smart Guy.
- The Smart Guy: And a bit insufferable about it much of the time.
- Smart People Wear Glasses: He's a prodigy in school and his glasses vie with his Nice Hat to be noticed.
- Squishy Wizard: Only at first. Later that can be changed.
- Born Unlucky: Cursed to turn into a monster when you first meet him and it only gets worse from there.
- Butt-Monkey: Party Chats with him imply that he has terrible luck, and he tends to be the butt of the other party member's jokes.
- Chivalrous Pervert: Old Amos likes the bunny girls and frequently laments his single status.
- Dumb Muscle: Shown to be pretty dense, but still a strong fighter.
- Involuntary Shapeshifter: His problem when you first see him. He is a Were Dragon who can't control changing at night.
- Voluntary Shapeshifter: What happens after you help him out.
- Mighty Glacier: Quite similar to Carver in this regard, although he trades power for a wider equipment pool.
- Mr. Fanservice: As he is depicted in the DS Updated Re-release's character stock art, where he was given an actual, unique design (as seen in the image to the right). In comparison and contrast to The Hero and Carver, Amos is both hunky like the latter and athletically sporty in build and youthful in the face like the former, without being the giant mass of muscles Carver is or coming off as young as The Hero. His outfit adhering to the belief that Sleeves Are for Wimps helps sell the appearance and look.
- Optional Party Member: You can avoid helping him out, possibly even managing to turn him into Permanently Missable Content.
- Third-Person Person: Old Amos refers to himself this way a lot.
- You ALL Look Familiar: In a similar case as Tuppence, he looks like a generic NPC blue warrior in the original game. The remake gives him an updated, though still similar sprite.
- Anti-Hero: He's not the nicest party member, but his heart is in the right place.
- Anti-Villain: Before his HeelFace Turn at least. Then he becomes an Anti-Hero.
- Arrogant Kung-Fu Guy: Has shades of this.
- Bishōnen: Easily the prettiest boy in the game, although looking in a mirror as him reveals him to have preferred to have been a rugged manly man as opposed to a slender pretty boy.
- Breakout Character: Popular enough to be the star of the first Dragon Warrior: Monsters spin-off game, and the installment's sole representative in Dragon Quest Heroes.
- Chick Magnet: Girls all over the world are pining for him. Even dragons, apparently.
- Dark and Troubled Past
- Deadpan Snarker: Unlike Milly, who tends to snark through witty back-handed compliments, Terry's snarking is blunt and biting. Snarking must be a family thing.
- Deal with the Devil: Makes one just before you beat him up.
- Defeat Means Friendship: Only joins the party after getting defeated by them, and is the only party member to do so.
- Expy: Is literally Trunks in a hat.
- HeelFace Turn: Makes one when lured in by the promise of power.
- Hidden Depths: Party chats imply him to be a Supreme Chef.
- Jack-of-All-Stats: His stats are pretty similar to the Hero's, though he lacks early access to the Hero class.
- Jerkass: At times, he can be outright rude.
- Improbable Weapon User: Orichalcum Fangs.
- Ineffectual Loner: Terry subverts this, as he's actually a talented swordsman who can stand on his own. Eventually, however, he winds up playing this straight following his deal with the devil.
- Terry Debuted in Dragon Warrior Monsters
- Master Swordsman: He joins at the highest level of all characters. Depending on which version you're playing, he'll have a different number of sword-related classes mastered.
- Overrated and Underleveled: Terry suffers from this; while stated to have defeated several guards that you took down as a party and was shown to easily beat a very strong monster by himself, by the time he joins, he is more or less an average party member with an advanced job and strong weapon.
- Cutscene Power to the Max: He uses Dragon Slash to end his fight with the monster in Wayfarer's Pass, but later joins you as a beginning Gladiator who doesn't yet have that skill.
- The Rival: Acts this way towards the Hero for much of the game, which even seems to continue post HeelFace Turn, if party chats are to be believed.
- The Sixth Ranger: Fits this trope perfectly, from starting as the Ineffectual Loner rival of The Hero to becoming a Rival Turned Evil to joining the party through Defeat Means Friendship.
- Used to Be a Sweet Kid: Life was certainly not kind to him growing up.
- All Amazons Want Hercules: Develops an interest in Terry after he defeats her, and becomes his loyal follower from there on out.
- An Axe to Grind: Her favorite way to chop up her foes.
- Back from the Dead: Never really explained, and it freaks out the guards.
- Breath Weapon: Learns the fire-breathing attacks by default, and starts off in the vocation that teaches these types of attacks.
- Dinosaurs Are Dragons: She's a Hackasaurus who has a default class of Dragon.
- Dumb Muscle: Implied by her Party Chat, though her Wisdom is actually fairly high.
- HeelFace Turn / I Fight for the Strongest Side: She was originally the Hackasaurus that terrorized Arkbolt, but it's implied she was impressed by Terry's skills and wanted to accompany him.
- Hulk Speak: Lizzie *spit*... talk like this often... *slobber*
- Magikarp Power: Inverted. Lizzie's stats when she joins at level 5 are on par with characters 25-30 levels higher than her, but she levels up very slowly and gets paltry stat upgrades until she breaks level 46 and up.
- Mighty Glacier: The strongest and toughest party member around, even beating out Carver. Her Agility isn't even that bad, though it's still her weakest stat, and her HP and Resistance stats are the strongest in the game, with an impressive array of monster resistances and immunities on top of that.
- Secret Character: Can be recruited by taking Terry to the Arkbolt prison after he is recruited.
- Stalker with a Crush: Some party chats imply that she's one of these towards Terry.
- Undying Loyalty: Towards Terry, whether he likes it or not. This thankfully extends to the rest of the party while he's with them.
The Dread Fiend responsible for the monster hordes ravaging the world. In reality, he is an agent of Archfiend Mortamor, sent to extend his reign from the Dread Realm into the human and dream worlds.
- Baleful Polymorph: Turns the queen of Somnia into an amnesiac, insomniac version of the king and turns the real king of Somnia into a decoy of himself.
- Big Bad: For the first 10-15 hours of the game...
- Disc-One Final Boss: Framed as the Big Bad and has a suitably epic dungeon and battle, but he needs to be defeated before you can finally unlock the games intricate Job System.
- The Dragon: Really only one of four to the true Big Bad.
- Turns Red: When you defeat him, he just gets angry and immediately begins a second battle with properly epic music and nastier attacks.
One of the Dread Fiends. He is responsible for creating and spreading rumors of utopian paradise, the Isle of Smiles. In reality though, the Isle is a Lotus-Eater Machine where the prisoners are tortured for eternity.
An aquatic Dread Fiend that sows chaos in the human world's oceans.
- Breath Weapon: of ice variant.
The final and most powerful of the Dread Fiends. Using the floating fortress Stormsgate Citadel, he plans to succeed where his colleagues failed to subjugate the world. Despite this, he is oddly polite and courteous.
- Affably Evil: After storming his castle, he instructs his minions that you are a guest of his and to not attack you.
- Deal with the Devil: Gives Terry "ultimate power" in exchange for his service.
- Noble Demon: After testing your strength, he considers you a Worthy Opponent and will heal you before his fight.
The warden of Gallows Moor, the Dread Realm's infamous prison. When one of the Archfiend's subjects refuses to break under his tortures, they are sent to Gallows Moor, where Blackmar and his minions subject them to horrific tortures and inhumane treatments before finally mass executing them.
The master of the Dread Realm, and the true villain of the game. He is responsible for the crimes of the Four Dread Fiends, and created the 'link' between the human and dream worlds in order to conquer them both. His ultimate plan is to utterly remove hope from the hearts of everyone, transforming all three worlds into a bleak, soulless haven for despair and death.
- Evil Old Folks: His first form.
- Hope Crusher: His ultimate plan
A mysterious, obscenely powerful demon that resides deep within the Fungeon. He respects only the strong, and if summoned, he will perform one wish for the summoner if they pass muster. If they don't... bad things happen.
- Bonus Boss: The Bonus Boss of the Dragon Quest series. He has all the strongest attacks in the game and more HP than all of Mortamor's forms combined.
- Curb-Stomp Battle: If you beat him in fewer than 20 rounds, he will singlehandedly take down Mortamor for you. He'll win without even taking any damage.
- Defeat Equals Friendship: If you defeat him, he will willingly grant you a wish.
- Evil Is Not a Toy: In the backstory, a king summoned him in an attempt to stop Mortamor. The fact that, when you find that kingdom, it's a blasted, ruined wasteland full of poisonous swamps should tell you how well things went.
- Final Boss Will turn into this if you beat him in under 20 turns as he will kill Mortamor for you, after which you get the ending as though you beat Mortamor.
- Worthy Opponent: Sees your party as this if you can beat him in under 20 turns. When he faces Mortamor he mocks him and says that your party is stronger than he is.