Ultraman Wiki
Ultraman Wiki

Grandon (グランドン Gurandon) is a massive undead dinosaur-like Terror-Beast who appeared in Dinosaur Squadron Koseidon.

Subtitle: Fear Beast (恐獣 Kyōjū)


Dinosaur Squadron Koseidon

Alien Godmes come up with a plan, luring the Koseidon Corps into the Dinosaur Graveyard. Grandon was created from modifying a dinosaur, and first appeared after they started an cooling system. Koseider comes to fight the beast and save one of the team members trapped in a explosive egg chamber. Grandon fights Koseider equally, but Alien Godmes warn the hero that if he kills Grandon, the eggs will explode, killing the team mate. In order to counter this, the hero stops time, right before Grandon gets stabbed by a icicle, and saves his teammate. After doing this, Koseider undoes the time stopping, causing Grandon to die from the icicle piercing it's stomach.


  • It is one of the very few terror-beasts created from modifying dinosaurs. The dinosaur that was modified to create Grandon is unknown.


  • Height: Approximately 2m
  • Weight: Unknown
  • Origin: Dinosaur Graveyard
Powers and Weapons
  • Garon Cannon: Grandon can shoot fireballs out of this cannon in the mouth.
  • Tough Skin: Grandon can stand Koseider's kicks and punches easily. However, it can't stand icicles, like how it was killed by impaling a icicle in the belly.
  • Tail: Grandon can use its tail as a whip.


Dinosaur Squadron Koseidon Kaiju
Princess Altasia | Big Lagee | Futabasaurus | Pteranodon | Brontosaur | Nipponosaurus | Triceratops | Tyrannosaurus | Stegosaurus | Dimetrodon | Corythosaurus | Emperor Godmes | Alien Godmes | Commissioner Zaji | Leader Jericho | Shogun Kenoch | Shogun Gaban | Sigma-1 | Destron | Galias | Gomer Corps Commander | Gibra | Gibras | Piragia | Kinokong | Magma Person | Grandon | Baribaa | Eredon | Dr. Ogimura | Gigi | Dr. Sabata | Cyborg S1 | Alien Mosgis | Cyborg K2 | Alien Dakiron | Cosmo Plums | Cyborg B1 | Dr. Kuroiwa | Cyborg B2 | Cyborg Combatants | Dr. Kuramochi | Franken No.1 | Franken | Alien Devil Akumazy | Kishida Gounosuke | Tsumura | Cyborg Guardsmen | Doctor Dark | Phantom Shiraki | Alien Holost | Nishiyama | Cyborg | Alien Yapu | Aliens | Ragout | Satar | Dr. Munakata | Professor Kisaragi | Bemgan | Kiska | Robot Weapon Nova