|Home world:||Planet Earth (Nebula M78 Universe)|
|First appearance:||Return of Ultraman Episode 50 "Invitation from Hell|
|Height:||2.5 ~ 50 m|
|Weight:||130 kg ~ 30,000 t|
Subtitle: Primordial Underground-man (原始地底人 Genshi Chisokojin?)
- Height: 2.5 ~ 50 m
- Weight: 130 kg ~ 30,000 t
- Origin: Underground
Return of Ultraman
Thirty kilometers under the Earth's surface lived a species of underground humans who were losing their sense of sight over the course of generations and in their place a pair of antennae that could freely manipulate radio waves. Wanting to claim the surface world they sent their champion King Bockle to attack the human world starting with the Underground Science Center in the middle of the night. The next day King Bockle attempted to invade a nearby city. Upon rising from the ground he attempted to assassinated Dr. Koizumi for discovering his species by summoning an earthquake. Goh was forced to turn into Ultraman Jack to stop King Bockle. At first Jack trumped King Bockle in melee combat until he was stunned by the giant's poisonous gas and trapped in earth loosened by him. However, Jack spun around to burrow to another spot before finishing King Bockle with the Ultra Bracelet.
- King Bockle has an altered Alien Varduck cry.
- Although not physically seen, King Bockle is one of the monsters that makes up Beryudora's body in Mega Monster Battle: Ultra Galaxy Legends The Movie.
Powers and Weapons
- Growth: King Bockle can grow from human size to that of Ultraman Jack's size.
- Antennae: King Bockle has a pair of antennae that allows him to manipulate radio waves that can control the ground to his will and gives him mind control over weaker humans.
- Poison Gas: King Bockle can release poisonous gas from the back of his head.
- Fierce Astounding Launcher (激烈暴威ランチャー Gekiretsu Bōi Ranchā?): King Bockle can fire explosive sparks from his forehead.
|Return of Ultraman Kaiju & Seijin|
|Takkong | Zazahn | Arstron | Sadola | Detton | Kingsaurus III | Gudon | Twin Tail | Gorbagos | Ghostron | Dangar | Stegon | Mognezun | Shugaron | Seamons | Seagorath | Eledortus | Terochilus | Bemstar | Sartan | Magnedon | Beacon | Gokinezula | Zanika | Vacuumon | Kupukupu | Kingstron | Zagorath | Nokogilin | Gronken | Varricane | Yadokarin | Oxter | Plooma | Alien Zelan | King Maimai | Alien Mates | Muruchi | Leogon | Pris-Ma | Draculas | Re-Seagorath | Re-Bemstar | Black King | Alien Nackle | Alien Varduck | Alien Black | Snowgon | Alien Baltan. Jr | Builgamo | Alien Stora | Paragon | Alien Grotes | Kodaigon | Granadas | Alien Centaurus | Robonez | Alien Cygnus-61 | Alien Messie | Alien Zoole | Red Killer | Femigon | Yametaranese | Sasahiller | Alien Ateria | Alien Mysteler | King Bockle | Alien Bat | Zetton II|