Don Ron
Don Lon
Home world: Planet Earth (Cosmos Universe)
First appearance: Ultraman Cosmos: The First Contact
Latest appearance: Ultraman Cosmos Vs Ultraman Justice: The Final Battle
Height: 54 m
Weight: 69,000 t
Category: Kaiju
Affiliation: Lidorias
Roar(s): TBA

Don Ron (ドンロン Don Ron?) also known as Don Dragon (呑龍 Don Ryu?) is a kaiju who appeared in the films Ultraman Cosmos: The First Contact and Ultraman Cosmos Vs Ultraman Justice: The Final Battle.

Subtitle: Legendary Drug Klesha-beast (伝説薬使獣 Densetsu Yaku Shijū?)


  • Height 67 m
  • Weighs 67,000 t
  • Origin: Archeological Park


Ultraman Cosmos: The First Contact

An ancient monster from Japan's past, Don Ron was awoken when Alien Baltan came to Earth to conquer it and assure his species' survival. He was revered as a god, and soon enough he went on the affensive. However, it's actions got SRC's attention. After attacking the monster with their jets failed, they introduced Don Ron to ice mist and after a few seconds, he was completely frozen. As it fell to the side, the Shark Defense System unleashed a barrage of missiles on the frozen fiend. With Don Ron fatally wounded, Baltan emerged from the body and continued the quest on his own, leaving Don Ron in pain. However during in the ending credits, Team SRC carried his body for burial.

Ultraman Cosmos Vs Ultraman Justice: The Final Battle

However, another Don Ron appeared when a few Gloker Pawns attacked Japan and teamed up with the monsters BolgilsGolmede, and Lidorias to defeat the aliens in response to Musashi/Cosmos defeat under the hands of the invaders and Ultraman Justice. They managed to destroy a few, but the last two combined to form a Gloker Rook and not even their power could withstand such a powerful powerhouse and were forced to retreat.


  • Don Ron is one of the few monsters to never fight an Ultra, despite going on a rampage.
  • Despite having only a pair of legs, but he was surprisingly able to burrow with quick succession.

Powers & Weapons

  • Burrowing: Don Ron can burrow underground despite neither having arms nor extra legs.
  • Flames: Don Ron can emit deadly streams of fire from his mouth

Photo Gallery

Ultraman Cosmos Kaiju & Seijin
Ultraman Cosmos: The First Contact Basical Baltan | Don Ron |Clevergon | Alien Baltan (Basical, Shirubyi)
Ultraman Cosmos Chaos Header | Lidorias | Chaos Lidorias | Golmede | Chaos Golmede | Spittle | Igomas | Chaos Bug | Mogrudon | Mienin | Gamoran | Small Inculas | Inculas | Yamawarawa | Geshot | Mudon | Ephemera | Waroga | Galbas | Jelga | Jirak | Chaos Jirak | Gigi | Renki | Alien Migelon | Angrilla | Bolgils | Parastan | Chaos Parastan | Chaos Parastan S | Gelworm M | Gelworm P | Imitation Ultraman Cosmos | Gragas | Alien Srayu | Guinje | Chaos Header Iblis | Zaranga | Baby Zaranga | Eligal | Chaos Eligal | Chaos Header Mebut | Clevergon | Chaos Clevergon | Golmede Beta | Neldorand | Chaos Neldorand | Reycura | Ragstone | Mahagenom | Taildas | Chaos Taildas | Alien Beryl | Hellzking | Neldorand II | Chaos Neldorand II | Puratea | Exter Raider | Sydevakter | Delgoran | Chaos Delgoran | Sol | Taildas Mechalator | Alien Nowar | Neldorand Mechalator | Gigi Dr. XX01 | Mugera | Alien Kyulia | GiriBanes | Waroga II | Alukela | Snowstar | Vadata | Mazalgas | Chaos Mazalgas | Sangelu | Alien Carpcis | Arados | Ragstone Mechalator | Tablis | Mitoru | Gamoran II | Kawanoji | Gruanfan | Giragas | Hellzking Revised | Dolba | Chaos Dolba | Eligal II | Chaos Eligal II | Chaos Darkness
Ultraman Cosmos 2: The Blue Planet Parastan | Scorpiss | Sandros | Reija | Alien Gyashi | Shirubyi
Ultraman Cosmos vs. Ultraman Justice: The Final Battle Gloker Pawn | Gloker Mother | Mienin | Lidorias | Golmede | Don Ron | Bolgils | Gloker Rook | Gloker Bishop | Alien Gyashi | Shirubyi | Giga Endra | Delaxion