Numerous different creatures and monsters appear the IDW comics, many of which have a basis in myths and legends.
Aliens in Issue #24
Bookworm in Issue #16
Butterdragon in Issue #24
Carnivorous Flowers Edit
Carnivorous Flowers in Issue #3
|Residence||Forest of Leota|
Cats in Issue #3
Cats are the inhabitants of 'Wuvy-Dovey Land', and were used as a source of love by Queen Chrysalis when she crash landed in their town.
She and some of her changelings land in the center of a town inhabited by the cats, who immediantly shower them with cakes and love. Although she survives the fall, she and her army are weakened, so they feed off the cats' love and transform their town into the Changeling Kingdom. Chrysalis later harms one of the cats in front of Apple Bloom, Sweetie Belle and Scootaloo. Its fate is unknown.One later approaches Spike with a card.
Jim in Issue #2
A cave troll named Jim (after Jim Miller, FiM's storyboard supervisor) appears in The Return of Queen Chrysalis. Chrysalis regards them as idiots.
The six find and enter a cave in the Appaloosan Mountains, where they run into a cave troll, and Twilight Sparkle asserts that it's much larger than the "Cave Dweller's Reference Guide" says that species is. The troll picks up Fluttershy, and brushes her mane with a branch, eventually setting her down on a shelf containing what looks like a giant stone Magic 8-Ball and Optimus Prime.
He grabs Rainbow Dash next, dolling her up, much to Applejack's amusement and Rainbow's annoyance. Rarity then comes up with an idea, and asks Pinkie Pie for help. The idea turns out to be rock and wood replicas of the main six. The troll grabs the Rarity doll and states that he will call it George, much to her horror.When the ponies are trapped by spiders, Pinkie returns with Jim, whom she has convinced of there being a teddy bear where the other ponies are. The troll sees the spider and is convinced that's the teddy bear, so he drags the spider off, naming him Fluffy.
Queen Chrysalis and two of her guards in Issue #3
Changelings are the minions of Queen Chrysalis. They take over Ponyville briefly, but are easily defeated by the ponies.They have a pony-like appearance along with insect features, though they can change their appearance to match that of any pony they want.
Chupacabra in Issue #3
Chupacabras inhabit somewhere beyond the Appaloosan Mountains. They are the natural enemies of Jackalope. They are based off the Mexican/North American cryptid, Chupacabra.
In The Return of Queen Chrysalis, Fluttershy and Twilight fall down a hole, but Twilight is able to use her magic to get the both of them out of the hole, and once they're out, they spot a Chupacabra. Twilight observes that they only eat goats, but then she and Fluttershy realize the twigs lodged in their manes look like goat horns, and so the Chupacabra begins to chase them.
The others, who are running from the Jackalope, crash into the pair, causing the whole group to tumble down a cliff. Twilight hopes that such a death-defying fall might keep their pursuers at bay. It is at this point that Fluttershy reveals the bunnies' species to be Vampiric Jackalope, as she mentions that they are natural enemies of the Chupacabra, and will fight with it for dominance, and the right to eat the ponies.They then engage in a fight which horrifies the ponies, with the exception of Fluttershy, who only remarks that nature is fascinating.
Big Boy and Runt in Micro-series #2
- Main article: Cloud Gremlins
The two Cloud Gremlins are the main antagonists of the Rainbow Dash Micro-Series. They try to block out the sun to make everyone miserable. They constantly mock and taunt Rainbow Dash.When Rainbow Dash does a Sonic Rainboom, she cheers up the citizens of Ponyville, and the sudden positivity causes the Gremlin's cloud to explode into rainbows, throwing them away into the sky.
Giant Cockatrices in the Mini-comic In the Interim...'
Crystal Ghost Edit
Crystal Bard in Friends Forever #4
|Residence||Underneath Caves of the Crystal Castle|
Cyborg Ponies in Issue #24
Diamond Dogs in Friends Forever #6
Dinosaurs in Issue #24
Discord in Friends Forever #2
Dragons in Friends Forever #14
Drop Bear in Issue #27
Egyptian Cat Edit
Egyptian Cats in Issue #24
Egyptian Cats appears in Issue #24.
Lejendar Gygax in Issue #11
Fire Snail in Friends Forever #14
|Residence||Sewers under Fillydelphia|
Fruit Bat Edit
Evil Luna in her ghost form in Issue #19
Giant Bats Edit
Giant Bats in Issue #27
Giant Spiders Edit
Giant Tarantula and Giant Spiders in Issue #2
Vermouth Roux in Friends Forever #1
Hippocampi in Issue #24
The skeleton of a Hydra in Issue #17
Jackals in Issue #24
Jackalope in Issue #1
Cassie the kelpie in Issue #23
A kelpie named Cassie appears in comic|23 as a primary antagonist. She uses her singing to control the minds of ponies and compel the citizens of Ponyville to destroy a dam near the town. To Angel horror, Cassie aims to flood the town. However, she only wishes to do so for the benefit of the water sprites, who cannot reach the ocean unless a path of water is prepared near Ponyville.In Scottish mythology, a kelpie is an equine water spirit associated with drownings.
Living Food attacking students in Micro-series #8
A Mantahawk in Issue #14
Mermares in Issue #14
Imp in Micro-series #7
|Residence||Underneath cave in the Everfree Forest|
Minotaurs in Issue #27
Moon Creatures Edit
Moon Creatures in Issue #8
Moon Slugs in Issue #8
Mummies in Annual 2014
The Nightmare Forces in Issue #6
- Main article: Nightmare Forces
The Mightmare Forces corrupted Princess Luna, turning her into Nightmare Moon. When she was cleansed of them by the Elements of Harmony, she assumed them destroyed.They later returned, and corrupted Rarity, after that they captured the main six and Spike, but they are able to find a way to return them again in Moon Creatures and destroy the nightmare energy. The Forces are led by Shadowfright.
Ogre in Friends Forever #2
Owlbear in the mini-comic "Luna Gets a Pet"
Alternate universe version of Philomena in Issue #19
|Residence||Evil Celestia's Castle|
Roc in Issue #24
Sass Squash in Micro-series #6
Sea Beasts in Micro-series #9
|Residence||Aquarium in Golden Oaks Library|
Shadowy Creatures in Micro-series #8
Space Fleas in Issue #16
Tiberwolves in Issue #27
The Beasts of the DeepEdit
|Beast of the Deep|
Alternate universe version of Kibitz in Issue #19
Vampiric Jackalope in Issue #3
The Vampiric Jackalope appear in The Return of Queen Chrysalis. They are based off the North American folklore of the jackalope.
Pinkie Pie and Rainbow Dash happen upon a group of rabbits with horns. One bites into Pinkie's left hind leg, freaking Rainbow Dash out, but only causing Pinkie to give that one the name "bitey". Rainbow Dash picks up Pinkie by the tail and starts to fly out of there, when Rarity and Applejack crash into the two. Applejack uses one of the flowers chasing her to take out some of the bunnies, and the group continues to run again. The flowers do not seem to partake in the chase.They then bump into Twilight and Fluttershy (running from the Chupacabra), causing the whole group to tumble down a cliff. Twilight hopes that such a death-defying fall might keep their pursuers at bay. It is at this point that Fluttershy reveals the bunnies' species to be Vampiric Jackalope, as she mentions that they are natural enemies of the Chupacabra, and will fight with it for dominance, and the right to eat the ponies. They then engage in a fight which disgusts/horrifies the ponies, with the exception of Fluttershy, who only remarks that nature is fascinating.
A Water Sprite in Issue #23
Windigos in Equestria Girls: Holiday Special
Winged Cat in Issue #27
Zombie Ponies in Issue #16