|List of all creatures|
The Dragon is an ancient creature that dwells in the old hidden dungeons underneath the Castle of the Snowman on Hook Mountain. Armed with fiery breath and sharp claws and teeth, the Dragon fiercely guards a magic jewelled egg coveted by the Ice King. It is later revealed that the egg actually contains the spirit of the Ice King's queen and so the ThunderCats help him to wrest the egg from the clutches of the dragon.
|Creatures & Plants||Frog-Dog | Giant Treetop Spider | Hopper | Sandy Tailed Hooji | Lizarthon | Shadowbeast | Tricorn Elk | Unicorns | Octopoid | Fatatah Cheetah | Dragon | Incubi | Rhino creature | Giant Beetle | Donkey | Giant Scorpion | Mechanosect | Mossland Monster | Yak | Vortex | Great Void | Great Sphinx | Shadow Creature | Feathered Lizard | Arietta Bird | Firebat | Pterodactyl | Snake Birds | Winged Water Snakes | Giant Crow | Vultures | Diamond Beaked Woodpecker | Astral Moat Monster | Black Widow Shark | Gaw-Rak-Rak | Sea-Quines | Tongue-a-Saurus | Berbil Fruit | Trollberry Bushes | Mandroga Flower | Fish Eating Flower | Shemlock | Brackenberries | Tree Monster|
|Characters||Good Characters | Evil Characters | Creatures & Plants|
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|Shows||ThunderCats 1980s | ThunderCats 2011 | SilverHawks | TigerSharks|