Characters: How To Train Your Dragon Books

This is the character sheet for the How to Train Your Dragon book series. Please keep in mind that characters and character tropes in the How to Train Your Dragon films by and large do not apply here, given that the two series are significantly different, and should be kept to that character sheet. Beware of unmarked spoilers.
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Main Vikings

Hiccup Horrendous Haddock III

  • Cowardly Lion: In the books; understandable since he's only about ten. (Though he gets older as the books go on.) He takes it even further at the start of Defenders where he is downright expecting Alvin to be nearly ready to wage war on Berk and its dragons and is devising up a load of counters for every known species. A 180 compared to most fandom expectations of him when it comes to militarizing dragon riding.
  • Dork Knight: Hiccup is a Socially-Awkward Hero who became the top contender for Badass in Berk.
  • Expecting Someone Taller: Alvin couldn't believe that the famous "Dragon Conqueror" was 'Stoick's little embarrassment'.
  • Geek Physiques: Skinny and short in the first movie and most of the books. Doesn't quite get as lucky during puberty as his movie counterpart, as book!Hiccup may be tall now, but he's still considered very much one of the Noodle People.
  • Genius Ditz: He's a prodigy at everything relating to dragons and inventing but little else. In a pre-modern world where dragons are a source of speed, protection and martial ability far above anything technology can supply, this is very useful.
  • Kick the Dog: Hiccup's been on the receiving end of some pretty nasty things. Especially in the last three or four books. You just wanna give the poor kid a hug.
  • Made of Iron: Has survived very lengthy falls, nearly on the receiving end of fire blasts, smashing into several hard things, and even took a direct lightning strike and is still fine.
  • Major Injury Underreaction: Looses a leg in the first movie and...he just looks sad when he finds out. In the latest book ('How to Betray a Dragon's Hero') he tricks a dragon into swallowing him so he can stab it in the face with his sword. Of course, he's being swallowed whole... so when he is eventually spat out, he realizes that half his foot has been melted by digestive acids! It's barely even mentioned again after that paragraph!
  • Memetic Badass: In-Universe, several of Alvin's men believed him to be a giant of a man with superhuman strength. Then they find out he is badass for completely different reasons.
  • Nerd Action Hero: Combines his intelligence with his developing fighting skills.
  • Nice Guy: Hiccup is kindhearted, easy going and always willing to help.
  • Only Sane Man: More-so in the original books.
  • Red Baron: He is called the "Dragon Conqueror" by the Outcasts.
  • Red-Headed Hero: He's the hero and has auburn (reddish-brown) hair. Bookverse, it's bright red and unruly.
"He was entirely unmemorable. He DID have Heroic Hair, which was a very bright red and stood up vertically however much you tried to wet it down with sea water. But nobody ever saw that because it was hidden under his helmet most of the time."
The Narrator, How to Train your Dragon
  • Redhead In Green: His main attire in movie-canon is green and his hair aburn (reddish-brown).
  • Red Oni, Blue Oni: Bookverse, he and Fishlegs are the blue to Camicazi's red.
  • The Runt at the End: 'Hiccup', in canon, is the name traditionally given to the runt of the litter. Also counts as Meaningful Name.
  • Significant Green-Eyed Redhead: His hair is more brownish, but it still fits.
    • Hiccup's green eyes showcase his Brains over Brawn compared to the other Vikings.
  • The Smart Guy: He acts as his whole village's smart guy, though Fishlegs is better at tactics.
  • The Snark Knight: Hiccup will do anything to protect his home and the people of it, that doesn't stop him from snarking at either when the opportunity comes.
  • Speaks Fluent Animal: In the books he's able to understand and talk to dragons based on long periods of observation. The movie follows a similar path; he can't talk with dragons, but he can communicate his feelings to them very well, and this is because he's compassionate and patient enough to look for intelligence where everyone else sees evil.
  • Squishy Wizard: Subverted. Snotlout and several others assume Hiccup would be useless without Toothless, but it turns out Hiccup is still quite capable on his own and can kick ass using just his smarts and tools.
  • Stepford Snarker: It's heavily implied that the main reason Hiccup is so sarcastic because it was a way to deal with the constant shunning from his tribe, teasing from his peers, and disappointment from his own father. Now sarcasm is just another part of his character.
  • The South Paw: After his right arm is dislocated in How to Be a Pirate, Hiccup has to swap hands during a swordfight. Turns out he was a leftie all along.
  • The Strategist: "Everyone, follow The matter how strange it may seem."
  • Tall, Dark and Handsome: See He's All Grown Up.
  • Tall, Dark and Snarky
  • Teen Genius: He's the most level-headed viking in his whole tribe. He's also good at building things and he likes learning about dragons.
  • Teens Are Short: In the films, Hiccup is seen as the shortest teenager in his village.
  • Took a Level in Badass: In both the books and film and even more so in the books, where he started off as a scrawny shy boy that no one notices except when he messes up, and grows into a talented sword fighter and dragon whisperer who's saved the Archipelago several times and is prophesied to one day become the King who will unite the tribes again.
    • He graduates into a fully-fledged Badass in the TV show given he now leaps into highly dangerous situations in a calm demeanor and is trying to become a Badass Teacher by running the Academy.
    • If the teaser to the second film is any indication....
    • How badass is he now? Come "The Night And The Fury" and it shows Hiccup is able to kick Dagur's ass.
    • Book Hiccup is at least as much of a badass as movie Hiccup, given that he got first place in the free-for-all swordfighting tournament, even beating his own father.
  • Warrior Prince: A given in that he's the son of the chief and grows into a Badass Bookworm.
  • Weak, but Skilled: Hiccup is a very scrawny Viking compared to his more physically-capable friends, but he makes up for it with good application of his brains and tools. Case in point, he curb-stomps Dagur the Deranged.
  • Weapon of Choice: A sword.
  • Wise Prince: Also a given, considering he's an All-Loving Hero aside from being The Strategist and a Guile Hero.
  • Yank the Dog's Chain: In the ninth book.

Stoick the Vast

  • Action Dad: He never shies away from a fight against dragons. In the opening scenes of the movie, he takes on a Monstrous Nightmare alone.
  • The Atoner: Shows signs of this in the series over his previous attitude towards dragons, especially after getting Thornado.
    "I spent my whole life trying to kill them, now look at me."
    • Note, he says this while tending to Thornado after the dragon has been poisoned by Mildew.
  • Authority Equals Asskicking: The Chief of Berk knows no equal in battle or tactics.
  • Badass: There's an urban legend stating that in his infancy, Stoick popped a dragon's head off their shoulders. Hiccup sincerely believes this to be true.
  • Badass Beard: Easily trumps all the many other beards in the movie.
  • Badass In Charge: The Chief of Berk.
  • Badass in Distress: At the end of "Out Cast Part 1" by Dagur.
  • Beard of Barbarism: It is braided.
  • Berserk Button:
    • Hurt anyone he cares about, be it his son, village, or his dragon, and you're in big trouble. This is ESPECIALLY true in the books as seen when Skullion's (a species of vicious eyeless dragons) soon discover when they were about to harm Hiccup.
    • He reacts badly to people who mock those he does respect. Dagur almost finds this out violently three times in the span of a day.
    • On a less extreme angle, he gets somewhat irritated when somebody makes a remark about his weight. Or interprets a statement as one about his weight.
    • On a more serious note, Alvin is this. All we know is that the events surrounding Alvin's banishment is not someone he wants brung up and gets angry quickly, which Hiccup found out when he tried questioning him about it.
  • Big Ol' Eyebrows: Something else that Hiccup inherited.
  • Birds of a Feather: He and his dragon, Thornado, are quite stubborn. This is something Hiccup is quick to comment on.
  • The Chains of Commanding: He discusses this with Hiccup in "Cast Out Part 1" in regards to how he cannot exactly be someone's leader and friend.
  • Character Development: He starts the movie as a dragon-killing viking. Any good dragon to him would be a dead one. But he comes to see them not just as trainable beasts but close allies. His worry for Thornado when he was ill in "Dragon Flower" and later telling Gobber he would rather kill Dagur than allow him to kill Barf and Belch and risk war with the Berserkers in "Twinsanity" shows exactly how far he has come from the movie.
  • Cleopatra Nose: Something he passed on to his son.
  • The Cobbler's Children Have No Shoes: In Riders of Berk, Stoick rises before dawn to sort out other people's problems (from marital disputes to yak-tipping) until sunset, which implies that he had less time to spare for his own son.
  • Collector of the Strange: In "We Are Family Part 1", it's revealed that he enjoys woodcarving as a hobby. He was carving a duck when Astrid came to the house early in the morning.
  • Dad the Veteran: He, like other adults, has spent his life in the war against the dragons before his son ended it.
  • Death by Adaptation: Takes a shot meant for Hiccup in the second movie.
  • Defeat Means Friendship: In contrast to Hiccup, this is his approach to dragon-bonding. He ends up meeting his son halfway.
  • Freudian Trio: With his son, Hiccup and wife, Valka. He is the Ego to his son's Superego and wife's Id.
  • Generation Xerox: A portrait of the young Stoick and his father (Seen in "Portrait of Hiccup as a Buff Young Man") shows that the adult Stoick is the spitting image of his father.
  • Genius Bruiser: Not quite on Hiccup's level, but he is a lot more intelligent than his stubborn behavior lets on.
  • Genre Savvy: When he and the vikings attack the dragon's nest, all the dragons immediately flee from the island. While the rest of the Vikings are quick to celebrate their "victory", Stoick, upon seeing Toothless' reaction, realized something far worse was on its way.
  • The Good King: He genuinely cares about his village and seeks to keep them safe and well. If he has to make a choice between personal and his duty as chief, the latter comes first.
    "Look at that...All my people are safe. It's a good feeling."
  • He Who Fights Monsters: His drive to protect his home from dragons led him to invade the dragon's home to kill them. He eventually turns around.
  • Heterosexual Life-Partners: With Gobber.
  • Huge Rider, Tiny Mount: Before looking for his own dragon, he "borrows" Toothless from Hiccup and looks very awkward riding such a small dragon, and Toothless is dead tired after flying him around. Averts this when riding Thornado.
  • I Have No Son: In the movie, he says "You're no son of mine" after Hiccup publicly refuses to kill a dragon, and is revealed to have been working with Toothless. During the final battle, he realizes his mistake and he tells Hiccup "I'm proud to call you my son."
  • I Need a Freaking Drink: Shown when he comes home stressed in "Viking for Hire" and Hiccup quickly gets him a drink from a tankard.
  • Jock Dad, Nerd Son: He's always wished that his son had more beef on his arms but he comes to respect the "nerd" aspect of it as it helps him become a better chief.
  • Large and In Charge: He's the biggest and broadest viking (400 pounds according to Hiccup, though that may have been exaggerating), and his beard is the biggest, too. Being as large as he is, this leads to a particular funny moment.
    Hiccup: But there are two of you.
    Stoick: Is that another crack about my weight?
  • The Leader: Type levelheaded. He gives the dragons the benefit of the doubt, but if they become a threat to his people he has to deal with it.
  • Made of Iron: The man takes the sharp end of an ANCHOR to the face in his fight with Alvin the Treacherous, shrugs it off, and afterwards there's not a single scratch on him! Then in "Live and Let Fly", he catches a rock launched from an Outcast catapult and throws it back at the ship.
  • My God, What Have I Done?: He immediately regrets the above-mentioned I Have No Son moment, and his guilt only gets worse when he realizes Hiccup was right about the Green Death's ambush.
  • Out of Focus: Has been suffering this as of late in the TV series's second season: Defenders of Berk. Much of this comes from filling in a Quest Giver role in the plot while handling matters of rulership on Berk itself, whereas Hiccup and the others have fewer duties in Berk and thus time to perform various missions.
  • Overprotective Dad: At the start of Defenders, he tried to enact a flight ban because his son was captured and imprisoned by the Outcasts last season; it doesn't stick.
  • Papa Wolf:
    • Despite Hiccup's status as 'village failure', Stoick is still quick to protect his son from danger.
    • After he gets Thornado, this extends to him (and probably the other dragons). When he realized Mildew had poisoned them, the look on his face is one of pure hatred. Probably the only thing keeping him from beating the stuffing out of Mildew himself was he had no way to prove he intentionally poisoned the dragons.
  • Quest Giver: Generally his role in Defenders of Berk, filling Hiccup in on various situations or giving him various tasks that the dragon riders are ideally suited for or would be better at accomplishing.
  • Reasonable Authority Figure: He tries to do what's best for everyone. Mildew uses this to his advantage when confronted for something he obviously did by using the fact there is no evidence, especially concerning the affairs of Dragons, to get away with it.
  • Redhead In Green:He has red hair and wears a green tunic.
  • Royals Who Actually Do Something: Takes his role as chief of Berk very seriously and is often one to lead the charge. It's also shown in two episodes that he spends his days "chiefing", which involves everything from settling disputes and inducting babies to the tribe to fixing ships or removing fences.
  • Sink-or-Swim Mentor/Stealth Mentor: After the movie's events, Stoick takes this attitude towards Hiccup and the dragons. Considering Hiccup is next in line to be Chief after him, and some of their personal discussions being on leadership, it can be interpreted Stoick is also preparing Hiccup's role as a leader to the village as well.
  • Significant Green-Eyed Redhead: Has bright, red hair and green eyes.
  • So Proud of You:
    • Zigzagged in the movie. Initially disappointed, then proud when Hiccup demonstrated his dragon knowledge, then outraged when Hiccup refuses to kill dragons, then proud again during the final battle.
    • Also zigzagged in the series but to a lesser extent. There are some kinks to work out in relation to the dragons and while he's more accepting of his son's scrawny stature he'd still prefer him to be buff and strong.
  • The Stoick: It's his name, after all. While he is a man of few words, he clearly cared about his son even at the beginning of the movie.
  • Stout Strength: He's very broad and very strong.
  • Vitriolic Best Buds: The first thing he said to Gobber was "That's my wife you're talking to, you one-legged lout!"
  • Why Couldn't You Be Different?: Hiccup fully knows that this is what his father thinks:
    Hiccup: (sarcastically imitating Stoick) Excuse me, barmaid! I'm afraid you brought me the wrong offspring! I ordered an extra-large boy with beefy arms, extra guts, and glory on the side! This here, this is a talking fishbone!

Gobber the Belch

  • Artificial Limbs: In the films, he has a missing left hand that he can interchange with different objects (hammers, mugs, roast spits, etc.) and he has a right peg leg.
  • An Arm and a Leg
  • Badass: Gobber is second only in the Badass deparment to Stoick. Fitting, considering he's the chief's Number Two
  • Badass Mustache: It's so long is hangs over his face and it's braided.
  • The Blacksmith: Big, brawny, with a usually weaponized arm.
  • Captain Obvious: During the final match of Thawfest, he makes obvious commentary on Hiccup's status, which Stoick tells him he knows.
  • Closer to Earth: To Stoick when it comes to understanding Hiccup and best shown in episode 8. Inverted when it comes to other aspects of the village.
  • Cloud Cuckoolander: Believes in trolls and the Boneknapper dragon, which no one else shares. The Boneknapper happens to be real. Trolls are yet to be confirmed.
  • Combat Medic: Since Berk doesn't need dragon killing weapons anymore, he becomes a dragon dentist. He also made Hiccup's replacement leg and extracted poison from Mildew to make an antidote.
  • Crazy-Prepared: His "Iron Undies".
  • Ditzy Genius: He has shown his mind is sorta out there, such as attaching said flame thrower to the harness of a fire breathing dragon.
  • Drill Sergeant Nasty: He's in charge of training the new recruits; his approach is yelling suggestions while they duck and weave.
  • Gadgeteer Genius: He can make working flame throwers, though since dragons exist this is probably easier to achieve than in real life medieval times.
  • Genius Bruiser: In the movies, he's the village blacksmith and second only to the Chief in combat.
  • Handicapped Badass: He may lack an arm and a leg but that doesn't slow him down when it came to fighting dragons. He even stayed with Stoick to delay the Red Death.
  • Hates Baths: It takes Stoick and the dragonriders with their dragons to force him into a tub. He smells so bad after a whiff a Terrible Terror flies disoriented and hits a wall.
  • Heterosexual Life-Partners: With Stoick.
  • Honorary Uncle: Hiccup was his apprentice, and Gobber took care of him as much as Stoick did. This is historically accurate. Nordic people would frequently ask allies to foster their children as a sign of deepest trust.
  • Jerkass: His portrayal in the books is nastier than the movie or series.
  • Jerk with a Heart of Gold: More so in the movies and series.
  • Number Two: He's Stoick's best friend and the one he turns to first for help but he made a mess of things when filling the role officially.
  • Running Gag: Numerous mention of or jokes involving his undies.
  • Sink-or-Swim Mentor:
    • His belief for the first day of training in the film is to release a Gronckle, then ask the students what they know about it.
    • Gobber's father was also an example as he taught Gobber to swim this way. Sadly, this doesn't translate well to training the dragons at the academy. Oddly, Gobber seems to remember this fondly.
  • Shield Bash/Luckily My Shield Will Protect Me: His training sessions often include the merits of shields. In the movie, he said he would choose a shield if given a choice between it and a sword because the shield can be offense and defense.''
  • Swiss Army Appendage
  • That Came Out Wrong: Never admits so himself, but his advice never carries out the intended message.
  • Word of Gay: Jay Baruchel has confirmed that his line in the second film about "other reasons" he never got married is an indication that he's gay.

Fishlegs Ingerman

  • Adorkable: Similar to Hiccup.
  • Awesomeness by Analysis: He can look at a brand new dragon and instantly break down its strengths and weaknesses.
  • Bad Liar: Does not do well lying under pressure.
  • The Berserker: In How to Be a Pirate, Fishlegs discovers that he's a berserker. When he catches a cold in How to Cheat a Dragon's Curse, he sometimes involuntarily went berserk and started yelling insults at people bigger and stronger than he is.
  • Beware the Nice Ones: Snotlout found out the hard way that Fishlegs is downright terrifying when pissed off. It's possibly a nod to the books, where Fishlegs became a flat-out berserker.
  • The Big Guy: Usually this is Snotlout's role, but when Fishlegs snaps, it suddenly becomes obvious that he outweighs any three other members of the Riders.
  • Deadpan Snarker: In the books.
    Fishlegs: Oh, how I wish I had a nice smart Bardiguard all of my very own, to chuck rocks at me, and send me unarmed into one-to-one combat with teenage psychopaths.
  • Demoted to Extra: While he was Hiccup's best friend in the books, he's more of a friendly classmate in the first film (he's still the only one in the class who doesn't make fun of or speak badly about Hiccup).
  • Geek Physiques: In the books described as being even weedier than Hiccup. He's the complete opposite of this in the movie-verse, however.
  • Genius Bruiser: Once he gets some confidence, he and Meatlug can do serious damage.
  • Genre Blind: If someone (especially a teenager who has a suspicious backstory) starts bringing up questions about how well your dragon can be in a serious battle, you'd figure he would have a few red flags raised in his head.
  • Gentle Giant: Films only; in the books he's just as scrawny as Hiccup.
  • Huge Rider, Tiny Mount: His Gronckle is far from tiny, but Fishlegs still is about a third of its size. It should be noted that, out of all of the dragon breeds encountered so far that are large enough to be ridden, the Gronckle is definitely the smallest.
  • Lovable Nerd: Is even more prone to geek-outs than Hiccup.
  • Megane: Books only.
  • Nice Guy: The only other teen Viking (with Astrid) who didn't openly mock Hiccup in the beginning.
  • Platonic Life Partners: Has the closest relationship with his dragon after Hiccup and Toothless.
  • Red Oni, Blue Oni: Bookverse, he and Hiccup are the blue to Camicazi's red.
  • RPG Mechanics Verse: Spouts these in the movie: "+3 defense, +7 venom" etc.
  • Sensitive Guy and Manly Man: The Sensitive Guy to Snotlout's Manly Man.
  • The Smart Guy: He memorized the Book of Dragons and considered a biology book a page turner. During the Red Death fight, he advises the other riders on strategy.
  • Warrior Poet: In the series, he composes poems at sunset.


  • Dawwwsome: Camicazi is a very small preadolescent girl. Her first act in the series is to cut down Fishlegs's pants and engage Hiccup in a sword fight, assuming they are Roman spies.
  • Sticky Fingers: Camicazi and her entire tribe. They are called Bog-Burglars.
  • Tomboy: She can do everything that a Viking boy is expected to do.

Snotlout Jorgenson

  • Abusive Parents: His dad is a Stage Mom and so harsh Hiccup throws the last game so he'll let up on the guy.
  • Angst: The prospect he was going to lose Thawfest brought him to near tears and hyperventilating while riding Hookfang.
  • Amazon Chaser: He cannot stop hitting on Astrid.
  • The Big Guy: Established as the best athlete among the kids, and despite his age is more than a match for many adult Vikings in combat.
  • Chew Toy: In the series, if someone is going to get an Amusing Injury it's going to be him.
  • Crouching Moron, Hidden Badass: Successfully holds his own and even wins against several Outcast Vikings in "Defiant One."
  • Dude, Not Funny!:
    • In-universe example. He makes a few jokes alluding to Toothless being unable to fly in "What Flies Beneath". Astrid and Hiccup were not amused.
    • Neither Astrid or Hiccup were amused by his mocking of Frozen Fin Hofferson, but Astrid quickly made him regret that.
  • Dumbass Has a Point: He might be an idiotic jerk, but in the same episode above, he accurately guessed that Toothless was too proud to listen to accept Hiccup's help in fighting the Whispering Death.
  • The Friend Nobody Likes: The other Dragon Riders tolerate him, but they make it quite clear that none of them particularly like him. They seem to hang out solely because they're in the same age group and, after ending the war, they're the leaders of the Dragon Academy.
  • Get Rich Quick Scheme: He seems to be mildly prone to these for unknown reasons. In "Gem of a Different Color" he sells lucky rocks actually changewing eggs to various villagers, even getting one woman's son in payment. In "Tunnel Vision" he responds to Berk's lack of water by trying to sell the water he and Astrid were sent to get to alleviate the problem.
  • Hopeless Suitor: For Astrid. Even Astrid's voice actress agrees. After the film, it switches between playing sweet and flirty teasing. Astrid nearly throws up when he suggests her to be his "queen".
  • Jerk Jock: According to "Thawfest" this is due to pressure from his family.
  • Jerk with a Heart of Gold: As in the books, he's very huff-puff about growing up to be a manly Viking, but has a definite soft spot, especially for his dragon Hookfang.
  • Leader Wannabe: When Hiccup is forced to put Toothless back in the cove during "The Terrible Twos", Snotlout tries to use the fact that Hiccup no longer has a dragon to take his place as leader of the Academy. Astrid quickly reminds him that she, as Hiccup's second, will be taking the position. Making it worse is that he tends ignore or argue with Hiccup, which gets them in trouble.
  • Made of Iron: Can take a giant rock to the face and shrug it off with a grin. He's also the most physically capable of the young Vikings, having won every Thawfest festival because of his strength and stamina.
  • Miles Gloriosus: He has won every Thawfest game, but in daily life Astrid and Hiccup are much more reliable.
  • No Guy Wants to Be Chased: In "Free Scauldy", he spends nearly the whole episode flirting with Astrid when they're alone on a mission, much to her annoyance. When Astrid pretends that he's won her over and starts playfully flirting with him, Snotlout is visibly freaked out.
  • The Resenter: "The Defiant One" reveals that a lot of his issues with Hiccup stem from jealously over Hiccup's accomplishments, especially in light of the fact that Hiccup is far from a conventional Viking. Given what we've seen of his father, and the way Snotlout was listing Hiccup's accomplishments as if they were things he'd heard over and over again, it could well be that we're hearing his father's sniping at his son for not seizing more recognition for himself.
  • Running Gag: Hookfang lighting his pants on fire, forcing him to leap into the nearest water source.
  • Sensitive Guy and Manly Man: The Manly Man to Fishleg's Sensitive Guy.
  • Spared by the Adaptation: So far, at least.
  • This Looks Like a Job for Aquaman: Outside of having to use brute force for fending off human opponents, Snotlout has no other use.
  • Unknown Rival: His rivalry with Hiccup is one-sided on his part.
  • Vitriolic Best Buds: There are moments when you wonder if he and Hookfang aren't trying to kill each other, but Snotlout was visibly upset when it looked like Hookfang would have to be put down, and Hook does seem to genuinely care when Snotlout is in real trouble.
  • Wouldn't Hit a Girl: Played with. Before punching Tuffnut, he checks to make sure he's the male twin.

Alvin The Treacherous

The Leader of a tribe of Outcasts and serves as the other villain of Dragons: Riders of Berk. He seeks to learn the arts of dragon taming. Which happens as of the "We Are A Family" season finale.

  • Artificial Limbs: Get these in the book.
  • Authority Equals Asskicking: Seems to be a trend in this show. This bugger can swing a Napper by the tail.
  • Badass: One of the few people who can fight evenly with Stoick.
  • Badass Boast: By proxy! Given by Gobber in his behalf:
    Gobber: "If there's one thing Alvin knows, its treachery."
  • Batman Gambit: In the two part season finale, "We Are A Family" he sets one up to not only capture Hiccup but trick him into training Mildew how one bonds with dragons, so Mildew can train him in return. This relies not only on Hiccup's trusting nature but Alvin's own tendency to betray people. He continues into Defenders, where he shows up near Berk's shores, knowing the riders would react and leave the island ready for his real ploy of planting Death Whisperer eggs.
  • The Beastmaster: Can tame dragons as of Part 2 of "We Are A Family" season finale. He picks a Whispering Death.
  • Big Bad: With his introduction, he becomes a clear and constant background threat to Berk, making various Evil Plans to take Hiccup or what he knows for his own people. As of Part 2 of "We Are A Family", Mildew is working for him so he is now the undisputed head villain of the series. As of "View to a Skrill", he has been replaced with Dagur after being on the receiving end of many biggajoules of lightning from the Skrill.
  • The Chessmaster: This guy has shown his intellectual prowess and is one of the few who rivals Hiccup, sometimes surpassing it.
  • Dangerously Genre Savvy:
    • Unlike Mildew, he embraces the potential Dragons can bring (for more nefarious reasons). This is why he sends Heather to act as The Mole in order to obtain the book to learn taming and exploiting the weaknesses of the other dragons.
    • He is willing to listen when it is clear something is beyond his skills, like when Astrid, disguised as Heather, points out the Book only goes so far. When one of his men is nearly killed by a Deadly Nadder despite following the Book's help, he agrees to this fact. To test that, he gives it to someone else.
    • Later, upon seeing the Monstrous Nightmare Astrid befriended in his training area comes back for her because of the bond they formed in the brief moment, he realizes he also needs Hiccup to teach them about the bonding aspect.
    • In "We Are a Family, Part 2", he tries to force Hiccup to train dragons for the Outcasts, but knows better than to think Hiccup will ever cooperate. Instead, he has Mildew pretend to change his mind about defecting and then trick Hiccup into teaching him the tricks of dragon training under the guise of escaping. Once Mildew fakes capture and the others escape, he teaches Alvin and they begin taming dragons.
  • Evil Counterpart: To both Stoick and Hiccup. He is a wise, but evil chief who leads through fear and a firm hold on power, where Stoick doesn't abuse his power in such a fashion. To Hiccup, who wants to make peace with dragons and possibly a world where all can be friends, Alvin wants dragons to conquer and destroy his enemies. At the end of "We Are Family Part 2" it is shown the dragon he bonds with is a Whispering Death, Toothless' enemy.
  • Evil Plan: Force Hiccup to tell him the secrets of Dragon Training so he can take over Berk. He succeeds by tricking Hiccup into teaching Mildew, who has defected to the Outcasts.
  • Faux Affably Evil: Treats his heinous actions with the same air one would talk about the weather, but nonetheless clearly enjoys performing them.
  • Genius Bruiser: Equally clever as he is strong; look at his gambit entries for proof.
  • He's Back: As of "Cast Out, Part I".
  • I Have Your Wife: Threatened to kill Heather's parents if she didn't do as he commanded. He also used this on Hiccup with his dragon as the hostage, though that was merely part of a larger ploy.
  • Knight of Cerebus: Also unlike Mildew, any episodes shown involving him are completely serious. The only thing he lacks to be a true threat is the ability to tame dragons which he learns how to do in the season 1 finale.
  • Names to Run Away From Really Fast: Not the Alvin part, but certainly the "Treacherous" as he clearly has little intention of honoring a promise unless he can still get something out of it.
  • Not So Different: Discussed in the series with Snotlout. Alvin was once a friend of Stoick's, making this resemblance even more uncanny.
  • Smarter Than You Look: He looks like some vicious thug yet he is brilliant strategist when it comes to getting what he wants.
  • We Can Rule Together: to Hiccup at the climax of "Heather Report" part 2.
    Alvin: You know, Hiccup, with this book, your knowledge of dragons, and my knowledge of warfare, we could make quite The Team. How does that sound?
    Hiccup: Uh... Insane? Demented? Delusional? Stupid?
  • We Used to Be Friends: In their youth, Alvin and Stoick were good friends, but since Stoick was the son of the chief he was always in command. One day, during a dragon attack on the village, Alvin went against orders and did things his way, resulting in high casualties. This ruined their relationship and Alvin's reputation and he was banished soon after Stoick became chief.
  • Worthy Opponent: He seems to legitimately admire Hiccup's ability to tame dragons and creating the art of it. He even offered him a chance to join him.
  • Would Hurt a Child: Has no qualms about attacking the group, even if they're just kids, and shows glee at the thought of seeing one of them eaten by a dragon.
  • You Have Outlived Your Usefulness:
    • Seems to be his favorite line to use, as Savage has commented he tells him that often if he was to fail. When Astrid disguised as Heather returns to them, he planned to have her killed.
    • Exploited with Mildew. While it looked like he was doing this, it was actually a Batman Gambit learn Hiccup's dragon taming techniques by proxy. It works. Later played straight when Mildew's plan with the Whispering Death eggs failed, but Mildew managed to talk his way out.



Both Universes
  • Adaptational Badass: In the books he's a Basic Brown/Garden Dragon, one of the smallest, most common dragon species (the template for the Terrible Terrors in the movies) while in the films he's a Night Fury, a Lightning Bruiser phantom dragon nicknamed "the unholy offspring of Lightning and Death."
  • Defrosting Ice Dragon: To say he was hostile to Hiccup at first is an understatement. In the books, he is selfish and mean to Hiccup, eating his food and not listening to him, however in the climax he flies up a '''big dragonus giganticus maximus's nose, almost killing himself, to save his trainer
  • Determinator: Nothing stops him from protecting Hiccup; not a cliff, not a chain, not other dragons.
  • Heterosexual Life-Partners: An interspecies example. With Hiccup, a Viking human.
  • Tsundere: Toothless likes to switch among affectionate, aloof, and hostile at the drop of a hat.

Book Universe
  • Exactly What It Says on the Tin: In the books he literally has no teeth. Eventually he grows a tooth near the end of the first book (though he loses it in a fight)
  • Snark Knight: He'll snark and let people know it, but he is also extremely loyal and protective of the ones he love.
  • Porky Pig Pronunciation: In the books. He has a stammer, yet can pronounce words perfectly, which is odd for a dragon with no teeth.
    Toothless: F-f-f-fish! w-w-want fish! Now!
    Hiccup: We don't have any fish
    Toothless: Ok then. Eat c-c-cat!


  • The Ditz: He has shown to be rather... spacey.
    • In one instance, Snotlout tries to prove their bond by leaping from Hookfang, who did not notice until Toothless informed him.
    • Another time he did not notice Snotlout screaming due to watching a falling leaf.
  • Jerk with a Heart of Gold:
  • Running Gag: Has a tendency to set the pants of his rider on fire. Good thing Gobber has his "iron skivies"!
  • Took a Level in Badass / Took a Level in Kindness: At the start of the movie, he was just as angry and Viking-hating as most dragons. In the season 1 finale he acts to defend a bound Hiccup and Toothless without any order or request from Snotlout.
  • Vitriolic Best Buds: Sure, he sets Snotlout's pants on fire regularly, but when Snotlout is in genuine danger, Hookfang always comes through. Snotlout himself was clearly distressed when it looked like Hookfang would have to be put down in "Viking For Hire".


A mood dragon in the books, belonging to Camacazi and a deadly Nadder in the movies, belonging to Astrid.

  • Attack Its Weak Point: Astrid tries to stop Stoick from grabbing Stormfly on the nose, as a Nadder's weak point is a blind spot directly in front of it. Stormfly thinks this trope is happening and panics. That said, Stormfly allows Astrid to touch her there when she hugs her dragon in "Heather Report" part 2.
  • Lightning Bruiser: Almost as fast as Toothless.
  • Power-Up Food: Astrid uses chicken to make her fly faster.
  • Spike Shooter: All Deadly Nadders can shoot spikes from their tail, but Stormfly does it a lot in the TV series.
  • Took a Level in Badass / Took a Level in Kindness: At the start of the movie, she was just as angry and Viking-hating as most dragons. In the season 1 finale she acts to defend a bound Hiccup and Toothless without any order or request from Astrid.
  • Trademark Favorite Food: Apparently, Stormfly will let anyone ride her, provided they feed her chicken first. It Tastes Like Friendship.

The Red Death

  • Adaptation Name Change: In the books known as The Green Death. Was, in the movie, a case of No Name Given, and as such, this section was previously listed under the dragon's literary name. It was changed after the dragon was referred to as The Red Death in a couple of recent episodes.
  • Bad Boss: See I'm a Humanitarian.
  • Big Bad: It's the one forcing the other dragons to hunt for it, which drives them to attack the Viking village.
  • Breath Weapon: Like all dragons its got one, but its breath weapon is one based on making pyroclastic clouds. Nothing near it stands much of a chance, until our heroes get into the fight.
  • Dragons Are Dinosaurs: The Red Death looks like an unholy cross between a turtle, an ankylosaur and a large theropod, is as big as Godzilla, and worst of all, it can fly. The overall cast of the monster gives the feel of a leftover primordial dragon, or perhaps even an ancient dragon deity.
  • Establishing Character Moment: The first thing this draconian monstrosity does on-screen is swallow a Gronckle whole for not meeting its feed quota. It follows up that appetizer with an entire Hideous Zippleback - in one bite.
  • Extra Eyes: Further emphasizing its monstrous appearance in comparison to the smaller, Ugly Cute dragons.
  • Evil Is Bigger: This guy is the only out-and-out evil dragon and it's HUGE.
  • Genius Bruiser: It's smart enough to know it'd get more food by forcing other dragons to work for it. When the vikings try to escape it after they find its lair? It destroys the ships so they can't.
  • Giant Flyer: It's as big as a mountain.
  • Hive Queen: Lampshaded by Astrid, it appears to have some kind of influence over the dragons even at a distance. One scene implies this when Toothless appears to endanger the lives of Hiccup and Astrid by taking them neck deep into the heart of the dragons' nest for no other real logical reason. This also explains why the dragons don't just leave, because they have no choice.
  • I'm a Humanitarian: Perfectly willing to eat other dragons if given the opportunity. This is implied to be one of the reasons they're doing its bidding; if they don't, or fail to bring it enough, it will eat them.
  • The Juggernaut: While the Red Death is chasing them, Hiccup and Toothless fly around, over and under large rocky outcroppings. The Red Death plows right through them.
  • Kaiju: A dragon the size of a truck would generally be considered large in this setting. The Red Death can (and does) swallow those whole. In the books he eats a younger version of his own kind. Easy to believe, considering he considers normal dragons tasty snacks.
  • Large and In Charge: The other dragons are like flies compared to it.
  • Lightning Bruiser: It's astonishingly agile for its size when in the air but still no match in that department to Toothless.
  • Made of Explodium: It's breath.
  • Names to Run Away From Really Fast: Assuming the thing doesn't reach your boats first.
  • Nonindicative Name: It's more of a sort of blue-grey in colour, though the name may be more to do with what happens whenever one shows up...
    • A few rows of its unusual spikes are red in color as well. Maybe a similar case to the Yellow-Spotted Lizard, picking the least apparent feature for the name.

     Book Universe 

Main Vikings


Daughter of Big Boobied Bertha, chieftain of the Bog burglar tribe and enemy of Stoick the Vast.

Big Boobied Bertha

Leader of the Bog Burglar tribe and enemy of Stoick the Vast.


Horror Cow

Fishleg's dragon in the books. A common-or-garden dragon, like Toothless, that is supposedly vegetarian. She is unwilling to kill animals and is a big sluggish to follow orders.

    Dragon Species 
  • All There in the Manual: The Book of Dragons is this. In one of the shorts, The Book of Dragons, we learn about several more dragons. Some have appeared in the show proper, others, like the Snaptrapper and Timberjack, haven't.
  • Breath Weapon: Almost all dragon species have them, and most commonly they breath fire, which is created by expelling a flammable gas and then igniting it with sparks from a mechanism in the mouth/throat. Certain species have more unique weapons, though.
  • Foreshadowing / Early-Bird Cameo: A lot of times, dragons that are shown or mentioned in the book pop up later in shorts of the television series itself.
  • More Teeth than the Osmond Family: Generally, the bigger the head the more teeth it has. The current kings, however, are the Whispering Death (which has six rows of teeth that can rotate like a rock-cutter) and the Snaptrapper (which has four heads, each of which has three toothy jaws).
  • Predators Are Mean: There's a certain invocation of this. Canonically, all of the "friendly" species of dragon are piscovores (fish-eaters) and have no interest in animal flesh. Those few that explicitly or implicitly do eat non-fish meat, however, have been villains — first the Whispering Death, and then the Flightmare, who explicitly eats humans to boot.
  • Unreliable Narrator: Several facts about the book are shown to be wrong, including that the Scauldron DOES have venom ("Dragon Flower"), and in regards to some dragon types it knows nothing (case in point: Night Furies).

Terrible Terror

Introduced: the How to Train Your Dragon movie.
Small Stoker class dragons, Terrible Terrors may be small but they are no less dangerous than their larger kin amongst the dragons.

  • Instant Messenger Pigeon: Hiccup and Fishlegs turn them into this in "Appetite for Destruction".
  • Killer Rabbit: They are about the size of a medium-sized cat. That won't stop them from attacking larger foes. The fact that, according to the Book of Dragons short, they're social dragons who tend to hang out in dozens-strong packs, makes them even more dangerous.
  • Mythology Gag: They look just like the book's version of Toothless.
  • Pintsized Powerhouse: Like all dragons, it is stronger than its size implies.
  • Ridiculously Cute Critter: Especially when one sleeps next to Hiccup because he gave the dragon a fish.
  • Team Pet: Due to its size, there's no one small enough to ride one. That doesn't mean they aren't liked all the same. "Worst in Show" has the riders each adopting one in a competition to see who the best trainer is. No one wins since they get distracted by an attack from Alvin.
    • Hiccup and Fishlegs have plans to use them as carrier pigeons to deliver messages to Berk from far away, calling it "Air Mail".
  • Zerg Rush: While vicious on its own, a single Terrible Terror is not too much of a threat. But they are social creatures and tend to work in packs.

Hideous Zippleback

Introduced: the How to Train Your Dragon movie.
The iconic Fear Class dragon, this two-headed dragon exemplifies the bizarre nature of its class with its two heads which must work in tandem to be dangerous. One head breathes the gas, the other lights it, resulting in major explosions. The gas itself is also dangerous, but only with long term exposure.

  • Knockout Gas: The gas emitted by the right head can be this; after all, breathing flammable gas is never a good thing.
  • Multiple Head Case: Inverted in that the two heads work together quite well, with one providing flammable gas, and the other a pilot light.
  • Multiple-Tailed Beast: Two heads means two tails.
  • Organ Autonomy: The two heads of a Hideous Zippleback are distinct and do not share each other's thoughts. If the heads start arguing, the dragon can stall out, leaving it vulnerable to attack.
  • Stuff Blowing Up: Zipplebacks can create explosions when one head breathes gas and the other head generates sparks that ignite it.
  • Weaksauce Weakness: Throw a bucket of water onto the head that sparks the gas and it is unable to light its gas. That said, finding the right head is the trick.


Introduced: the How to Train Your Dragon movie.
The iconic Boulder Class dragon, Gronckles are relatively small and sluggish dragons, but extremely tough and strong.

  • Dumb Muscle: Gronckles are generally lazy and easygoing, but rouse them, and they're as temperamental and direct as an angry rhino.
  • Extreme Omnivore: It can eat rocks. And its Breath Weapon depends on this fact.
  • Limit Break: In the movie, it is stated they only have enough fuel for six shots. Meatlug and other Gronckles can be seen firing more shots during the series.
  • Magma Man: The Gronckle is one of the few dragons that doesn't directly produce flame. Instead, it gobbles up rocks and mouthfuls of soil and then heats them to a molten state inside its belly. This superheated rock is then spat out at targets as distinctive fireballs. With the right rock, it can also produce Gronckle iron, a lightweight metal that is tougher than period iron and excellent for weapon and armor crafting. Though whether it's a real material under a different name or not is unspecified.
  • Mighty Glacier: The slowest of the rider-sized dragons, but tough and its magma attack is pretty powerful. It can even stagger a Screaming Death simply by ramming into it and keeps coming back for more!
  • Mix-and-Match Critters: The Gronckle looks like a cross between a bulldog, a bumblebee, and a toad.
  • Mundane Utility: Amongst the dragons, Gronckles have the most of this. They can hover in place, they can ingest rocks to make materials (for example, with sandstone they can make glass), and can carry significant loads while flying.

Deadly Nadder

Introduced: the How to Train Your Dragon movie.
The Deadly Nadder is the iconic Sharp Class dragon, a category of dragons distinguished by their natural arsenal of spines. Amongst the most avian-looking dragons, these vainglorious dragons spend much of their time preening themselves.

  • Attack Its Weak Point: The primary weak point of the Deadly Nadder is the blind spot in front of its head. To correct for this, it will attack anything that even gently touches the nose or hears something it cannot see. As Gobber said, "Blind spot, yes. Deaf spot ... not so much." That said, trainers who build up strong rapports with their Nadders are allowed to touch them there.
  • Fragile Speedster: They are capable of matching speed with a Night Fury if raised properly.
  • The Fighting Narcissist: Deadly Nadders are extremely vain, evidenced by the generous amounts of time spent preening themselves.
  • Pirate Parrot: Deadly Nadders resemble crested parrots rather than the traditional lizard, with rounded beak-like heads, bright scales resembling tropical plumage, and lack of forearms.
  • Spike Shooter: Deadly Nadders can shoot spikes from their tail with frightful accuracy.

Monstrous Nightmare

Introduced: the How to Train Your Dragon movie.
The iconic Stoker Class dragon, Monstrous Nightmares are the largest of the common dragons and well-known for their violent streak and their copious firepower.

Night Fury

Introduced: the How to Train Your Dragon movie.
The Unholy Offspring of Lightning and Death itself, Night Furies are fast, stealthy, and hit with enough firepower to blow the tops of catapult towers into cinders. They are the most feared dragons amongst the ranks of the Vikings. They belong to the Strike class of dragon, emphasizing the classification's hard hitting firepower and speed.

  • Always Accurate Attack: Their plasma blasts were described by Hiccup in the movie to "never miss", which was backed up in that almost all of their attacks (in the film) hit their mark.
  • Badass: The fact they strike pure terror in a culture full of boisterous dragon-slaying vikings is any indication, they are this big time.
  • The Dreaded: Vikings will gladly fight any of the other dragons, even ones that can swallow them whole, and have a long and impressive list of kills. If this one's screech is even heard? They run for cover screaming "NIGHT FURY! GET DOWN!". So much so that it was the only dragon listed where Vikings are advised to not even attempt to fight it.
  • Fragile Speedster / Glass Cannon: Night Furies are scary and tough like all dragons and have top speed and have a Breath Weapon strong enough to severely damage giant dragons, but compared to other dragons they lack brute strength as Toothless could not handle carrying Stoick. Subverted in that Toothless fought off a nightmare three times his size to protect Hiccup.
  • Informed Ability: In the tie-in ads and Defenders of Berk, it is mentioned that Night Furies only have six shots, similar to Gronckles. Toothless regularly fires dozens of shots in a fight.
  • Lightning Bruiser: They're called the unholy offspring of lightning and death.
  • Make Me Wanna Shout: Rare non-lethal variant (so far). "We Are a Family" reveals that they can use echolocation.
  • Metal Slime: Toothless is the only known Night Fury encountered so far, indicating either Last Of Its Kind or their extreme rarity.
  • Names to Run Away From Really Fast: Both its name and the Red Baron invoke this in the Vikings.
  • Nocturnal Mooks: Their coloring and fighting approach indicates that this is invoked.
  • Nothing Is Scarier: Extremely. Due to their rarity and almost never being seen, with the only known bit is how they are nocturnal and have an attack that is a Wave Motion Gun, Berk's residents were terrified of them.
  • The Quiet One: They are silent compared to most other dragons. Combined this with their firepower, speed, and camoflague, they are nightmarish when the sky is dark. This one of the reasons the Vikings are downright scared of these dragons in particular because you won't hear or know their presence until the moment of attack.
  • Red Baron: "The unholy offspring of lightning and death". In fact, the Night Fury is the only dragon in the movie to get a Red Baron like title.
  • Shock and Awe: Interesting that their dragon fire seems to give off this more than Playing with Fire. Also, if the battle with the Red Death in the movie is to go by, they have a concentrated blast so powerful they can topple the most gargantuan of dragons.
  • Super Senses: They can echolocate much as bats and some birds can, enabling them to maneuver in complete darkness and helping explain their accuracy when attacking at night.
  • Super Speed: One of the fastest breeds of dragons. Only the Red Death is known to have matched or exceeded its speed, and Stormfly (a Nadder) only gets close because of Astrid's training and care.
  • Wave Motion Gun: Their plasma blasts can do serious damage, toppling things like the Red Death or sinking ships in one hit.
  • You Are Already Dead: The Book of Dragons mentions that if you encounter one, you are pretty much already screwed.


Introduced: "Legend of the Boneknapper Dragon"
A large Mystery Class dragon, Boneknappers earn their moniker due to their macabre habit of assembling an armor of dragon bones to shield their bodies.

  • Arch-Enemy: To Gobber, until it's revealed why.
  • Collector of the Strange: It collects the bones of other dragons and wears them like armor.
  • Determinator: The Boneknapper that was Gobber's rival in the short. Its lifelong feud with Gobber has lasted for what can only be described as decades between the two. Even after being attacked by a Hammerheaded Whale and Yak being sent by Thor, not only did the dragon survive, but it continued to hunt Gobber until it got what it wanted.
  • Elemental Armor: The dragon bones it covers its body with qualify as this.
  • Heel-Face Turn: Once a Boneknapper gets all its bones, they become incredible docile. Best described by Gobber:
    Gobber: You give a BoneKnapper whatever it's looking for and it's just like an overgrown puppy dog.
  • Make Me Wanna Shout: Gains this ability once it has every bone it needs. Although it's not as strong as the Thunderdrum's persay.
  • Scary Impractical Armor: Zigzagged with the Boneknapper's shell of dragon bones, which seems to be quite practical and is intended mostly to be scary.
  • The Voiceless: Unless it has every bone it needs for its armor, Boneknappers can't roar.


Introduced: "The Terrible Twos" First appearance of a dragon not from the movie.

  • Everything's Better with Spinning: Its main way of breathing fire.
  • Expy: To the Timberjack, according to fans of the show.
  • Ring of Fire: They hunt by surrounding their prey with fire.
  • Seldom Seen Species: A small number of them reside in the forests outside Berk but despite this, no-one had ever seen one prior to the series (And they have only appeared in two episodes so far). Their home island is revealed in "The Eel Effect": they are native to Eel Island as they can eat eels without getting horrifically sick (in fact, they use it as fuel for their Breath Weapon).
  • Super Speed: It can get a speed boost by igniting itself like a Catherine Wheel firework.
  • Wreathed in Flames: As noted, this is the catalyst for its Super Speed. Not only does this make it fly faster, it also turns it into an airborne, spinning saw blade.


Introduced: "How To Pick Your Dragon".
One of the two Tidal Class dragons known in the series, Thunderdrums are large, frog-like dragons who spend most of their time in the water.

  • Badass: It's able to dodge Toothless's plasma blasts, and Toothless fires several times faster than any other fire-breathing dragon. It is also said to get its power from Thor itself, but that is more of an exaggeration. It is also able to plow right through solid rock without a scratch in a manner reminiscent of the Red Death.
  • Early-Bird Cameo: Its first "appearance" is as a drawing in the Dragon Manual in the film. It isn't properly introduced until the show.
  • Flying Seafood Special: Its introduction has it switching from swimming expertly underwater to a flying Lightning Bruiser. The Other Wiki confirms that it is at least semi-amphibious.
  • Make Me Wanna Shout: It has a sonic scream, though its ability to scream someone's head clean off (as Hiccup narrated in the film) seems to have been an exaggeration, or not shown due to violence restrictions. It can, however, shatter reinforced wood and rock. This makes it one of the two dragons confirmed as not having fire-based breath weapons.
  • More Teeth than the Osmond Family: Its mouth is all fangs and its head is wide enough to hold Stoick the Vast comfortably.
  • Prehensile Tail: It uses its tail to grab Stoick and drag him under without leaving the water itself.

Fireworm Dragons

Introduced: "Portrait of Hiccup as a Buff Young Man".
Small Stoker Class dragons, Fireworms are lizard-sized and lizard-like dragons that rely on their fiery skin to shield them from bigger enemies. They swarm in large numbers. Their Queen, however, is massive and can breathe fire like regular dragons.


Introduced: "Dragon Flower".
A large Tidal Class dragon that lives almost entirely out to sea; it's unclear if it can even fly any more. Spends most of its time underwater and so is rarely a threat unless it takes a hankering to a netload of fish, or decides to get territorial around a ship.

  • Early-Bird Cameo: Its first "appearance" is as a drawing in the Dragon Manual in the film. It isn't properly introduced until the show.
  • Kill It with Water: As an aquatic dragon, its Breath Weapon is based on swallowing liters of water and heating them to boiling inside its belly, allowing it to spray targets with powerful geysers of searing water. As with the Thunderdrum above, the book embellishes this ability; the water may be hot, but it's certainly not as dangerous as the book would have one believe, given how easily the attack is blocked.
  • Poisonous Person: If it eats the right kind of flowers (which are deadly to other dragons), it becomes one of these. This also makes its venom a good cure for the poison in the flowers.

Whispering Death

Introduced: "What Flies Beneath".
A rare and deadly member of the Boulder Class, the Whispering Death is a subterranean species of dragon that uses its wide mouth, spike-covered sinuous body, and six rows of rotating teeth to bore through the ground and come up from below when pursuing prey.

  • Badass: The first one that appears is the Arch-Enemy Of Toothless and No Sells Thornado's sonic scream
  • Blank White Eyes: Though it isn't blind.
  • Dark Is Evil: The scariest looking dragon seen so far has also been the nastiest, with the first one harrassing the entire village of Berk, including eating several livestock, out of a feud with Toothless and the second one ending up as the mount of Alvin the Treacherous. However, his is shown to be subverted later in the series. When it's shown that there not all bad after all.
  • Everything's Better with Spinning: They have rotating jaws and their tails move in a circular motion while in flight.
  • Flying Seafood Special: Thematically invoked; despite being a mostly subterranean creature, the Whispering Death is still quite capable of flight.
  • Lean and Mean: They're the archetypal 'villain' dragons, with long, limbless, eel-like bodies.
  • More Teeth than the Osmond Family: Six rows of rotating teeth. Between this, their oversized, ball-like heads, and their hostility, they're basically a draconic Langolier.
  • Spike Shooter: Like the Deadly Nadder, only from virtually every point on its body.
  • Tunnel King: This is its signature ability and mode of travel.
  • Weakened by the Light: They retreat from direct sunlight, though even mild cloud cover is sufficient for them to go outside.

Smothering Smokebreath

Introduced: "Breakneck Bog"
Small Mystery Class dragons that dwell in isolated regions. They produce thick clouds of smoke and use this as camouflage.

  • The Collector: They collect any metal items encountered, which they then meld together to build their nests. Justified, as they're rather small in size and use those nests to protect themselves from attacks by larger dragons.
  • The Napoleon: Third shortest breed of dragons seen so far, they're also fiercely territorial and very aggressive. Hiccup and the others didn't even try to train these things!
  • Smoke Shield: Invoked. They make a foggy-like smoke to act as protection, combined with metal scraps, to appear larger and scare others off.
  • Pintsized Powerhouse: Surprisingly strong for little dragons too.
  • Zerg Rush: They attack swiftly and in great numbers in order to overwhelm (or at least scare off) their victims.


Introduced: "Gem of a Different Color"
A member of the Mystery Class of dragons, Changewings are best known for their chameleonic scales, which make them extremely difficult to find.

  • Constantly Curious: Stated to be their natural personality trait in Book of Dragons.
  • Face-Heel Turn: After the Outcasts tame and weaponise the local Changewing population. They're animals, so they're not inherently evil, but they're certainly being used for evil ends.
  • Hollywood Acid: Not as strong as in many examples of the trope (it can damage stone but can't go through it and it barely scratches metal bars) but the speed at which it melts wood is still uncanny.
  • Hypnotic Eyes: Demonstrated in Book of Dragons that it possesses this ability, though it hasn't used it yet in the series.
  • Invisibility: Can flawlessly blend in with their surroundings. However, in open skies they are unable to camouflage.
  • Mama Bear: Stealing their eggs is not a good idea. In fact, if multiple eggs are taken, ALL the mother dragons will work together to retrieve them, and they won't leave until they have them ALL back.
  • Squishy Wizard: For a dragon, anyways. The Gobber mentions in the Book of Dragons that their scales are softer as a side effect of their concealment, making them more vulnerable to attack once found.


Introduced: "Fright of Passage"

  • Arch-Enemy: To Astrid and her family.
  • Bioluminescence Is Cool: Its diet of glowing algae causes its entire body to glow with bright blue light. This extends to other dragons that eat the algae, but the effect would seem to be permanent (or at the very least quite long lasting) for the Flightmare.
  • Blinded by the Light: The Flightmare uses this as one of its abilities. As with its general bioluminescence, other dragons can copy the effect.
  • Fearis The Appropriate Response: Lampshaded by everyone in Berk. Subverted for the reason why.
  • Light Is Not Good: The Flightmare glows bright blue and attacks anything it feels is a threat to its food supply.
  • The Paralyzer: It sprays a mist that causes its victims to freeze up for about a minute, allowing it to eat them with impunity. As most people don't survive this effect, the villagers attributed it to the victims choking in fear at the last moment, a fact which shamed Astrid's family when her "fearless" uncle fell prey to it.
  • Super Spit: Its Breath Weapon. See The Paralyzer above.


Introduced: "View To A Skrill Part 1"
An elusive member of the Strike Class of dragons, the Skrill are known for their Electrical abilities.

  • Achilles' Heel: It cannot use its electricity when submerged underwater.
  • Ax-Crazy: According to the Book of Dragons, the Skrill is "Untrainable". Hiccup was willing to try, but he ultimately settled for just taking it out of the picture.
  • Badass: It's easily as strong as Toothless, in addition to being immune to his attacks. This dragon is in the same class as Toothless (Strike Class), which emphasize on being very destructive.
  • Beam Spam: Its Breath Weapon operates on this principle.
  • Early-Bird Cameo: Its first "appearance" is as a drawing in the Dragon Manual in the film (Hiccup even mentions its name). It isn't properly introduced until the show.
  • Harmless Freezing: Can survive decades frozen solid in a block of ice. Justified due to its efficient internal body temperature.
  • Lightning Gun: Its breath weapon. The Skrill breathes out concentrated beams of powerful electrical white fire.
  • No Sell: Its electrical field can block Toothless' plasma blasts, though it needs to recharge to keep it up.
  • Purple Is Powerful: One of two dragons that utilizes a Breath Weapon other than fire (the other being a Night Fury) and it's colored violet.
  • Ride The Lightning: ALWAYS lampshaded whenever this Dragon is mentioned.
  • Shock and Awe: Its main power.
  • Shoot the Bullet: Can nullify other dragons' attacks this way using its own Breath Weapon.
  • Spikes of Villainy: Is covered in spines.

Speed Stingers

Introduced: "Frozen"
A breed of raptor-like, flightless dragons.

  • Beware My Stinger Tail: Anything they sting gets paralyzed for the better part of a day.
  • Decapitated Army: The pack follows an alpha, and will follow it anywhere. The riders exploit this to get them off Berk by capturing the alpha and flying it away from the island.
  • Everything's Better with Dinosaurs: Lacking both flight and a Breath Weapon, they might as well be dinosaurs.
  • Fragile Speedster: They aren't very big or tall and look frail, but they are very, very fast.
  • Instant Sedation: Their poison takes effect instantly.
  • Law of Chromatic Superiority: The alpha has a red crest.
  • Nothing Is Scarier: There is absolutely no information on them in their research notes.
  • The Paralyzer: Their stingers are essentially the Flightmare's spraying mist on steroids.
  • Pint-Sized Powerhouse: Their leader in particular, who breaks free of Hiccup's bola like it was nothing and just yanks Hiccup's shield off his arm with his tail.
  • Raptor Attack: With their super speed and pack hunting, they act like dragon raptors.
  • Super Speed: To make up for the fact that they can't fly.
  • Zerg Rush: They attack in one massive pack, using their stingers to quickly eliminate any threats before making off with any food they can find.