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Heather: "The Deadly Nadder. Piercing spines, loyal, powerful..."
Astrid: "Intelligent, and, of course, deadly."[src]
  Heather and Astrid about the Deadly Nadder  

The Deadly Nadder is a medium-sized Tracker Class (formerly Sharp Class) dragon that first appeared in How to Train Your Dragon.

Official Description

Deadly Nadders can suddenly raise the hundreds of sharp spines that stud their hides and tails and fling them with incredible accuracy. But when the shooting starts, there is no safer place to be than face-to-face with a Nadder — If you stand right in front of its nose, a Nadder won't be able to see you. Don't sneeze!
A vain and aggressive spine-shooting Tracker Class Dragon. A keen sense of smell makes up for a blind spot right in front of its nose.
The Deadly Nadder attacks from a distance, always staying just out of reach while launching fireballs at opponents.
  Dragons: Rise of Berk  
The Nadder is as beautiful as it is deadly. It may not be the biggest or the fastest, but the Deadly Nadder has the hottest fire of any dragon.
  DreamWorks Dragons: Wild Skies  


Character Designer Nicolas Marlet imagined that this dragon was an ancestor of a bird. This idea inspired the animation of the Deadly Nadder, which "moves like a parrot", with bit of an emu's walk and the posture of a Tyrannosaurus rex tossed into our blend of behaviors," says Head of Character Animation Simon Otto.
  The Art of How to Train Your Dragon  

True to its inspirations, most of the Nadder's concepts revolve around a bipedal dragon armored with spikes and a mouth resembling that of a parrot, as seen by various sketches by Nico and Tony Siruno.

Earlier concepts, such as Nadder by Nico Marlet and Kathy Altieri, as well as Nadder by Nico Marlet, depicted this species with two pairs of legs. The former had a stance somewhat like a crocodile, as its posture was similar to the crocodile's signature 'high walk'. The latter has relatively tiny forearms, similar to that of a Tyrannosaurus rex.

Whereas concept art such as Nadder by Tony depicted the dragon with more of a Velociraptor-like stance — its back pushed forward, almost parallel to the ground, and is depicted running. Tony's concept also involved feathers, hinting once again at the Nadder's dinosaur origins.

The details of the Nadder, particularly the colors, are also inspired by the parrot and the ostrich.

Director Dean DeBlois felt that an animation could break away from the limitations seen in live-action films, where propane flames are usually due to being easier to extinguish, thus decided to give the dragons a range of fires.[1] The Deadly Nadder was then given what Visual Effects Supervisor Craig Ring described as "a sparkler type of fire like Asian fireworks, fueled by a magnesium powder that flashes in a white-hot blur with explosive sparks and blowtorch-like flames."

When animating the Deadly Nadder, the team mainly emotes through body languages and head angles but keeps facial expressions limited. Simon Otto mentions that head angle changes eye darts, and posture adjustments are mainly used to convey emotions for the Deadly Nadder, much unlike the Night Fury, which relies heavily on facial expressions. The Nadder's quick and lithe changes help emphasize its bird-like qualities.[2]

Physical Appearance


ROB-DN Egg.jpg

In the promotional material for the first movie, Nadder eggs were described as having sharp spikes that deter predators. A picture of them, though, shows smooth blue eggs with no spikes whatsoever. The egg provided in the promotional material is similar to that in School of Dragons.

Nadder egg sod.png

In Dragons: Rise of Berk, the Nadder egg has a somewhat irregular form with an obvious scales pattern and visible spikes. They come in a variety of colors as the color of the Nadder after it has hatched is similar to the color of its egg.

Hatchling to Adult

In appearance, the Deadly Nadder is very beautiful and bird-like: it is bipedal, possesses winged forelimbs, and is about the same size as medium-sized theropod dinosaurs such as Allosaurus. Its small yet keen eyes, equipped with poor binocular vision, are one of the tools it uses to stalk its targets.

Its body is vividly colored, with a light beige underbelly, while its wings are mottled, darker shades. In front of its eyes is its curved nasal horn, which is often used to batter opponents; its lower jaw is shorter and wider than its upper, giving it an overbite.

Ringing its skull is a crown of spikes. Coating the tail is a series of poisonous spines which can be fired at an opponent with deadly accuracy. When relaxed, its head spikes and venomous tail spines lay flat, but when alarmed, they shoot upward to intimidate its foe. The tail spikes can also be used to make a rattling noise which it makes right before it attacks, similar to a rattlesnake's.

The live models and puppets used in How to Train Your Dragon Live Spectacular are also brightly colored and detailed. There are fewer spikes on the tail, and — presumably due to difficulty with technical aspects — the spikes do not raise or lower or shoot out. The live models definitely resemble the body type of bipedal dinosaurs.

Titan Wing Deadly Nadder.jpeg

A body suit of a 'fledgling' Nadder was also created. This 'fledgling' is not about to fly and has a reduced wing size.

Female and Male Nadders.png

The nasal horn of female Deadly Nadders are longer and more curved than those of males', whose horns are short and straight. The males are also larger in body size. Female Nadders also have a slight overbite that resembles a beak, while male Nadders have complete underbites and more robust jaws.

Titan Wing

Titan Wing Deadly Nadders have more spikes on their head, back, and feet. Their snouts are broader as well. Their body is greenish with pink lines and they possess some blue spots on the wings.


They are one of the most beautiful of the dragons, but also one of the deadliest. According to Astrid, they are very intelligent.


Stormfly's fire melts a Sea Stack.gif
Main article: Fire Types
Combined with a Gronckle's lava blast, the Deadly Nadder's magnesium blast can destroy dragon proof chains.gif

Before Fireworms were added to the franchise, Nadders had the hottest fire of all dragon species and still have one of the hottest. The Deadly Nadder firepower is known as a magnesium blast. It's been said that the Nadder's fire is hot enough to melt metal and turn Vikings into ash. Stormfly also has been seen melting solid rocks within seconds and is able to use a type of fire similar to a Razorwhip. Stormfly has been witnessed shooting an intense, blinding white fire that appears to be even hotter than the normal Nadder fire. Some Deadly Nadders have also been seen shooting green fire. Combined with a Gronckle's lava blast, the Deadly Nadder's magnesium blast can destroy dragon proof chains.

Stormfly's Blast create a path.gif

In Dragons: Race to the Edge, Season 5, Stormfly demonstrated a special type of fire that looks like a welding torch. This fire is intense and a blue-white blast of fire much more powerful than that of a average Nadder.

Spine Shot

Astrid dodges the spines shoots by a wild DN.gif

The Deadly Nadder also has at its disposal a tail that is covered in bristling deadly venomous spikes, which are used as projectiles to stun or immobilize its prey. Its tail spikes are its preferred weapon (probably due to the aforementioned blind spot). It can launch its tail spikes with devastating speed and accuracy.

Stormfly tries again to shoot a single spine.gif

As discovered by Snotlout Jorgenson when he exchanged dragons with Astrid, they can also shoot a single spine with prestine accuracy. Snotlout placed a hand on Stormfly's neck, just behind the crown of spikes. This caused her to fire a single spine shot that had such great accuracy to even slice another spine through the middle. This could be the secret ability of Nadders as Stormfly seems to be surprised herself to have this ability. Perhaps it is one of the secrets that Valka had mentioned in How to Train Your Dragon 2. Their spines are so sharp, they are made into spears by the Dragon Hunters.

Deadly Nadder will even shoot its tail spines when it sneezes.gif

As seen in "Dragon Flower", when under the effect of the Blue Oleander flower, a Deadly Nadder will even shoot its tail spines when it sneezes.


Stormfly hits Bolt & Float on accident, and they start ailing and look exhausted.gif

It has never been confirmed how venomous a Deadly Nadder's spikes are, and what the exact effects are. In "The Night and the Fury", Dagur says he got hit in the leg by one, but his leg appears to be just fine. The Dragon Eye also indicates that their sharp teeth are venomous as well. It is possible that the venom from both teeth and spines increases the pain like a Gila Monster's does. This can be evidenced in when Stormfly hits Bolt & Float on accident, and they start ailing and look exhausted. The same with Windshear in "Maces and Talons, Part 1" as she fell immediately out of the sky.

This species of dragons possesses a natural armor and is covered in poisonous spines. A Deadly Nadder’s key strength is its ability to shoot hundreds of poisonous needles from its tail at once (also known as "spine shooting").
  School of Dragons Website[3]  

Speed and Agility

Flystorm manages to escape from 3 dragons chasers.gif
Astrid discovered that, when put on a diet of chicken, the Nadder's speed increases greatly.gif

Deadly Nadders are extremely fast both on land and in the air. Astrid's dragon, Stormfly, rivaled even Toothless in speed. Astrid discovered that, when put on a diet of chicken, the Nadder's speed increases greatly, but it is implied to only be temporarily and Stormfly isn't still fast as Toothless. They are also quite agile and well-balanced, as Stormfly demonstrated in Trick Contests, and in the first movie in the Arena. They are shown by Flystorm to run slightly faster than other dragons on land such as the Scauldron, Changewing, and the Whispering Death. Also shown by Flystorm that Deadly Nadders can fly through a Whispering Death tunnel without no problem.

Stormfly has proven for their kind to be able to use their tail to grip onto Vikings.gif

Prehensile Tail

Stormfly has proven for their kind to be able to use their tail to grip onto Vikings, as it is strong enough to hold the weight of a Dragon Hunter.


In terms of behavior, the Deadly Nadder is very fast and dangerous.gif

In terms of behavior, the Deadly Nadder is very fast and dangerous, though its potency as a hunter is hindered by the blind spot directly above its nose (possibly due to its large horn). As a result, the dragon relies on its keen sense of smell and hearing, often instead of its binocular vision, in order to find its prey.

Their great sense of smell was the reason they were reclassified as Tracker Class dragons. Baby Nadders can smell a human from one hundred feet away, although it is currently unknown if the distance increases as they mature. Stormfly has been shown to be able to smell a wild Triple Stryke before anyone else had even seen the dragon in question. As stated in Vexclaw's description, a Deadly Nadder's sense of smell can be strong enough to enable the dragon to navigate successfully even if its eyesight is impaired.

Strength and Combat

Toothless and Stormfly catch Snotlout and Hookfang.gif
They can carry heavy loads such as a heavy metal, even dragon-proof cages with dragons like the Snow Wraith.gif

Nadders have shown to have great strength as they can hold Vikings' weight on their back with no sign of struggle. Flystorm was strong enough to carry Gobber the Belch and Mildew at the same time and still matched the speed of the other dragons. Also, they can carry heavy loads such as a heavy metal, even dragon-proof cages with dragons like the Snow Wraith inside as Stormfly did with the extra weight of Astrid. Also, a Deadly Nadder like Stormfly can carry the weight of a 5,000 lb Monstrous Nightmare like Hookfang with the extra weight of a rider.

Stormfly and Hookfang battles.gif

Nadders are proven to be great combat dragons as they are seen to fight against Monstrous Nightmares.

Endurance and Stamina

Stoick throws a catapult in a DN.gif
A adult Deadly Nadder can endure a Thunderdrum hatchling’s sonic blast.gif

Their endurance and stamina are high. These dragons can run and fly for long distances. In the first film, a Nadder was able to take on an attack from Stoick the Vast when he threw a heavy cart at its body. It was still able to fly well afterward. As shown in “Bing! Bam! Boom!”, a adult Deadly Nadder can endure a Thunderdrum hatchling’s sonic blast. As shown in "A Matter of Perspective", Deadly Nadders can also make their own spines bounce off of them.

Deadly Nadders are shown to be great swimmers.gif


As shown in "Last Auction Heroes" and "Dire Straits" Deadly Nadders are shown to be great swimmers.

Glowing Body

By eating glowing algae, a Deadly Nadder ot other dragons, can glow.gif

By eating glowing algae, a Deadly Nadder can glow, and can adjust its glow brighter to scare off other dragons as shown in "Fright of Passage".


Blind Spot

Look for its blind spot! Every dragon has one. Find it, hide in it, and strike!
  Gobber explaining how a Nadder relies on other senses to make up for its blind-spot  
DN Blind Spot.gif

Nadders have a blind spot right in front of their nose, as it does not possess binocular vision. By staying in its blind-spot, most trainers, or hunters, can carefully evade this dragon's gaze.

Vulnerable Areas

Ryker shoots after Stormfly.gif

Also, as discovered by the Dragon Hunters, when Nadders shoot their spines, their belly is always exposed, making it an easy target for Dragon Hunters, or other hostile dragons. Ryker Grimborn used this against Nadders to shoot them down. In addition, Nadders have a special weak spot under their chin, which when scratched, is extremely comfortable.

Hiccup uses the distraction to spare the DN.gif

Like a stereotypical comic-relief reaction of dogs being scratched, Nadder's eyeballs roll up, they gape their mouths open in comfort and their spikes preen downwards. When stroked correctly, some Nadders may collapse momentarily.

Like most other dragons, Nadders also have a pressure point on the neck, which disables the dragon.

Food Motivation

Stormfly is bribed with chicken.gif

Trained Nadders are easily bribed with chicken. When these manipulation is used, the dragon could potentially fall under the influence of others, be it good or bad.

Behavior and Personality

If there's one thing you don't want, it's an angry Nadder. [src]
  — Astrid  
The wrong deal with a Nadder.gif

The Deadly Nadder is one of the most beautiful dragons, and unfortunately, it knows it. It is well-known for its vanity; it constantly grooms itself to stay clean and maintain the luster of its scales.

DN grazing.gif

Like the Night Fury, the Deadly Nadder is a picky eater whose diet comprises mostly of poultry and is allergic to domesticated hoofed animals. Nadders also eat a significant amount of fish and even graze on plants, as seen in the episode, "Crushing It". However, when it is trained, it becomes very affectionate. These dragons also love to play fetch.

Deadly Nadders are intelligent, but tend to also be flighty.gif

Deadly Nadders are intelligent, but tend to also be flighty - anxious, especially when in the wild. Nadders are so intelligent that some wild populations like the Nimble Nadder have even learned how to use tools and teach tool use to their young.

Female Nadders have shown strong mothering behavior.gif

Despite being vain and skittish, female Nadders have shown strong mothering behavior, so strong that many individuals have even tended to babies not of their own species. This behavior has been demonstrated in Stormfly as well as Fireshrike. It is even shown in Rise of Berk that they will adopt even the eggs of hostile species such the Changewings.

Springshedder provides some evidence that Deadly Nadders shed scales at least once a year during the Spring when the weather starts to warm up.


Hiccup comforts a new dragon fron the Outcast Island.gif

To train a Deadly Nadder, one must very carefully approach the dragon from its tail. Then, you must gently smooth its spikes down. In addition, one can also train a Nadder by sneaking up on its blind spot, then scratching its chin affectionately.

Hiccup convince Scardian that they are similar.gif

Like all dragons, relationships are built on trust. By showing an aggressive dragon that you mean no harm, and are not much different from them, Nadders will grow to accept you.

Nadders that have bonded with their riders will bond with others. As Stormfly proven this for her kind that people other then their owner such as Heather can be bond easily with Stormfly if they feed them food, mostly their favorite like chicken. But Nadders are still loyal to their original riders.

Comparative Statistics


How to Train Your Dragon

Hiccup-toothless-how-to-train-your-dragon-1.png Main article: Stormfly (Franchise)

At the start of the movie, several Deadly Nadders attack Berk along with many other dragon species. At one point in the attack Stoick the Vast throws a cart at a Nadder and hits it successfully. During Hiccup's narration, he says killing a Nadder will get him at least noticed. Later on, Stoick along with a couple more other Vikings subdue three Nadders using a net. These Nadders escape towards the end of the battle due to Hiccup's bad luck and clumsiness and they make off with a good amount of kill. The Deadly Nadder is one of the dragons the students fight during Dragon Training. The teenagers learn how to stay in the dragon's blind spot when she first appeared in training in a wooden maze. The dragon is seen laughing at Snotlout's pathetic attempt to hit her with a mace and is driven off when Astrid hits her with an axe stuck inside a shield. Hiccup later learns from experience with Toothless that dragons can be subdued by scratching them gently on the side of the neck and the chin. He uses this to subdue the same Deadly Nadder in a subsequent encounter in a training exercise. Hiccup later walks Astrid through training a Deadly Nadder (the same one that Astrid had hit with a shield and Hiccup used the chin scratch trick on); she fights alongside her during the battle with the Red Death, but falls off her during the battle due to the Red Death almost eating them both by inhaling deeply and sucking them in plus the force from the Night Fury's blast used to save both the Nadder and Astrid. Astrid is seen riding her as her pet, and afterward named her Stormfly, who appeared in the rest of the series and other media.

Gift of the Night Fury

Hiccup-toothless-how-to-train-your-dragon-1.png Main article: Stormfly's Mate
Hiccup-toothless-how-to-train-your-dragon-1.png Main article: Stormfly's Offspring

At the Rookery, many Nadders, including those from Berk, were over there mating, breeding and caring for their young. They later helped, along with the rest of the dragon parents, to bring their children back to Berk.

Book of Dragons

The Nadder is mentioned in this short, along with training techniques and its abilities.

Dragons: Riders of Berk

Hiccup-toothless-how-to-train-your-dragon-1.png Main article: Bork Week Nadders
Hiccup-toothless-how-to-train-your-dragon-1.png Main article: Flystorm

A Nadder is seen trying to grab a lady's bread. Hiccup attempts to train it, but a Gronckle startles it and the Nadders goes out of control again in "How to Start a Dragon Academy".

In "We Are Family, Part 1", Astrid trained a special group of Nadders to parade the island during Bork Week.

In "We Are Family, Part 2", a Deadly Nadder is seen in the beginning being caged up on Outcast Island. Later in the episode Mildew trained a Deadly Nadder called Flystorm with the help of Hiccup. Flystorm helped the pair find Toothless and escape Outcast Island.

Dragons: Defenders of Berk

Astrid met a wild Nadder on Dragon Island during the events of "The Night and the Fury", while it attempted to attack her, she skillfully stayed in its blind spot and evaded its attack.

The gang is doing a dragon migration survey in "Appetite for Destruction", where they tag native dragons like Nadders with colors. Many wild dragons, including Nadders, from different islands, are fleeing from their homes. They later realized that the Screaming Death attacks islands by digging through them and sinking them. To defeat it, Astrid along with the other riders, round up as many wild dragons as they can. The Nadders help chase the Screaming Death away by firing and shooting it with their spines.

Dragons: Race to the Edge

Season 1

Hiccup-toothless-how-to-train-your-dragon-1.png Main article: Ambered Nadder
Hiccup-toothless-how-to-train-your-dragon-1.png Main article: Edge Nadder

A Nadder is seen coated in Death Song amber on Melody Island in "Imperfect Harmony". It had been lured there and captured by the Death Song as its next meal. When the Riders arrived, Toothless attempted to break it out by biting the amber but failed to do so. Hiccup tried to help but the Death Song returned. It is presumed that the gang freed it along with their own dragons and the other victims.

A group of Edge Nadders were seen in "Crushing It" enjoying a meal before being scared away by a wild Rumblehorn.

Season 2

Hiccup-toothless-how-to-train-your-dragon-1.png Main article: Kingstail
Hiccup-toothless-how-to-train-your-dragon-1.png Main article: Scardian

Spitelout Jorgenson trained a Nadder called Kingstail in "Team Astrid" and he has become his faithful dragon ever since.

During the events of "Edge of Disaster, Parts One and Two", several Nadders and other dragons were first seen raiding Trader Johann's ship, where they kidnapped Fishlegs. On a mission to save him, Hiccup and Snotlout sneak onto their island, only to find an entire team of wild dragons, marred with scars from a hunter, residing there. Fishlegs was treated as an outcast there, the leader, Scardian, was very wary of him but trusted him after seeing him save a baby Gronckle from choking. When the others rescued him, Scardian led his pack to attack. Hiccup then led him to a single sea stack, where he showed him his Dragon Fly and showed Scardian that they weren't that different after all. They then headed back to the Edge to aid in the battle.

Season 3

Hiccup-toothless-how-to-train-your-dragon-1.png Main article: Steeltrap

The Riders relocated several groups of Nadders from their migration in "To Heather or Not to Heather".

A fighter Nadder, Steeltrap, is seen fighting in the dragon fights during the events of "Stryke Out". Hiccup attempted to train him by staying in his blind spot and scratching his chin. When he gained Steeltrap's trust, he requested his help to break a Razorwhip's manacle free. When they busted out of the arena together, Steeltrap helped chase the Hunters and their spectators away and flew away with his newly gained freedom.

A captured Deadly Nadder was freed by the Dragon Riders in "Defenders of the Wing, Part 1".

Season 5

A group of Deadly Nadders were lured and trapped by a Death Song controlled by the Dragon Hunters in "Living on the Edge".

In "A Matter of Perspective", the Dragon Riders travel to Vanaheim, the final resting place of the dragons. There, they find tombs of different dragon species, including one of the Deadly Nadder.

Season 6

Many Deadly Nadders were summoned by the Berserker Bewilderbeast during the final battle in "King of Dragons, Part 2". They helped the dragon by fighting the Dragon Flyers and the Dragon Hunters.

How to Train Your Dragon 2

All the Deadly Nadders from Valka's Mountain fought viciously in the battle at Drago's Army. After Drago's Bewilderbeast defeated Valka's, all the Deadly Deadly Nadders bowed to their new Alpha. After they were freed by Toothless from the Bewilderbeast's control, they fought against the giant dragon. In the aftermath, they bowed to Toothless, acknowledging him as their new Alpha.

How to Train Your Dragon: The Hidden World

When the people of Berk decided to move to the Hidden World, all the Deadly Nadders of the island began the journey too, carrying different things, such as ships. They eventually arrived at New Berk, where they settled down for a while.

Many wild Deadly Nadders were among the myriad of dragons in the Hidden World who bowed down in front of Toothless and the Unnamed Light Fury, showing respect for their Alpha.

After Grimmel the Grisly captured Toothless, all the Deadly Nadders from Berk, along with the other dragons, came to their Alpha's help. However, Toothless ordered them to stop when Grimmel threatened to kill the Light Fury.

Fortunately, the Dragon Riders began an attack on Grimmel's ships and freed the Deadly Nadders, along with the other dragons, which returned to New Berk.

When the battle ended, Hiccup realised that the only way the dragons can be safe from humans was for them to go to the Hidden World. After Toothless gave the command to the dragons of Berk, all of them, including the Deadly Nadders, said their farewells to the Vikings and flew off to the Hidden World.

How to Train Your Dragon: Homecoming

The Deadly Nadder is pictured in a Dragon Manual formerly belonging to Stoick that Zephyr Haddock finds packed away in the Haddock House on New Berk.

A toy Nadder is also seen on the floor of the Haddock House.

Dragons: Rescue Riders: Hunt for the Golden Dragon

A picture of a Deadly Nadder is seen on the wall leading to the Golden Dragon. Leyla identifies it as a Tracker Class dragon.


How to Train Your Dragon Game

In the game adaption of the movie, How to Train Your Dragon, Deadly Nadders are experts in strength, which allows them to dish out some of the most devastating attacks. They have the longest melee range, making them hard to reach, and also possess high agility and speed to sustain speedy flight. However, their low stamina, power, and fire leave much to be desired and the Nadder is therefore not recommended for beginners or for obstacle courses. Players will start out with a Deadly Nadder if they choose Astrid as their main character.

DreamWorks Dragons: Wild Skies

In Dragons: Wild Skies, the Deadly Nadder can be tamed. It lives in Unlandable Cove, and one must feed it mutton in order to tame it. To get mutton, you will need 3 Gold to buy a knife, then go to Berk Village, where you then chop pieces of mutton. The Deadly Nadder is a Sharp Class dragon. When the player rides it, the dragon's mouth is closed. When you press the space bar, it will open its mouth and blow fire at the target.

Dragons Hero Portal

Stormfly appears in this game as part of one of the rider/dragon pairs the player can choose to play as.

Dragons: Rise of Berk

In Dragons: Rise of Berk, this dragon, along with its titan form is available. Individuals like Stormfly, Flystorm, Stormfly's Mate and Stormfly's Offspring, Bork Week Nadder, Ambered Nadder, Kingstail, Scardian and Edge Nadder became available.

School of Dragons

In the game School of Dragons, a Deadly Nadder is trainable. The Deadly Nadder is trained by many players in the game. Like all the dragons in the game, they have four stages of growth. A titan form became available later in the game.

A fossilized skeleton appears on Auction Island, for sale by the local merchants.

Dragons: Titan Uprising

Several Deadly Nadder individuals, like the Lethal Lancebeak, Pincher, Brush Nadders, and Nimble Nadders, Fireshrike, and hybrids, like the Deathly Galeslash and the Deathburple, appear in this game.

DreamWorks Dragons: Dawn of New Riders

Eir Stormheart has captured several wild Nadders and poisoned them with a concoction made of Grimora venom and dragonvine. Scribbler encountered some of them and freed them. The Nadders could later help Scribbler in fight, should he decide to call them.

Dragon Pets

A Deadly Nadder is one of the three dragons that appear in this game, along with the Gronckle and a Monstrous Nightmare.

Live Shows

How to Train Your Dragon Live Spectacular

A large animatronic blue Deadly Nadder features prominently in this Live Show adaptation of the first movie. There is also a Nadder body suit seen prior to shows to drum up enthusiasm that walks around outside venues.


  • Asterisk-Transparent.png The official measurements of the Deadly Nadder, as released by DreamWorks Animation are 30 feet (9.14 meters) in length, and 42 feet (12.8 meters) in wingspan.
  • Deadly Nadder hatchlings differ in appearance throughout the series. Like in most other dragons, it has really short wings compared to body size in School of Dragons and a somewhat larger wing-to-body ratio in Dragons: Rise of Berk. The ones depicted in Gift of the Night Fury look like smaller versions of the parents, but possessing a larger head and slightly bigger eyes. The ones depicted in promotional TV spots for How to Train Your Dragon: The Hidden World possess a kangaroo-like posture, a spikeless tail, and a smooth body with the exception of a frill consisting of a small number of blunt spikes and a few running down the back. The head is flatter and the eyes are enormous. The mouth lacks any teeth and the tail is short and stubby.
    • It’s possible that the smaller baby Nadders are hatchlings (Tiny Tooths) while the larger and more developed ones are juveniles (Short Wings).
  • A Deadly Nadder made a brief appearance in the DreamWorks short Almost Home, though it was just its foot. It is shown swooping down and carrying away one of Captain Smek's assistants while they scout for a suitable home planet.
  • Deadly Nadders, particularly Stormfly, were purposely made to fly much faster than their average speed in Dragons: Riders of Berk and Dragons: Defenders of Berk. This was shown multiple times such as when Stormfly easily catches up with the Screaming Death while it was chasing Hiccup, and when Stormfly flew faster than Toothless to catch up with the Skrill.
  • Deadly Nadders are shown to be facultative carnivorous (can eat both meat and plants, but prefers meat) in the episodes "How to Start a Dragon Academy" and "Crushing It" and in the Book of Dragons short, where they are seen eating fern-like plants.
    • Stormfly is also shown to like eating chicken, though she prefers only cooked chicken and does not bother live ones (like Tuffnut's pet).
  • Deadly Nadders made an appearance in the trailer for Minecraft's How to Train Your Dragon DLC, and have been put into the DLC as a blocky, tamable, ridable dragon
  • The meaning of "Nadder" is actually snake in Middle English.


Deadly Nadder (Franchise) uses Creative Commons Licensed content from the Rise of Berk Wiki page Deadly Nadder. The list of authors can be found on the page revision history (view authors). ROBWiki Logo.png
Deadly Nadder (Franchise) uses Creative Commons Licensed content from the Dreamworks School of Dragons Wiki page Deadly Nadder. The list of authors can be found on the page revision history (view authors). SODWikiLogo.png

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