Shinya Kaburagi (
Shinya was originally one of the few workers of Monster Research Center under GAFJ's supervision. In the night after he and his teammates cleaning up Genegarg's remains, Shinya accidentally tripped his delivery canister. He was possessed by Celebro in the middle of cleaning up his mess and once the parasite winning over his host, the possessed man picked up the stolen Z Riser and an orange splinter-like object.
Under Kaburagi's identity, Celebro studied the Z Riser technology and created Kaiju Medals for his own transformations and empowerment of monsters. During this time, he had several run-ins with Jugglus Juggler. However, his actions alerted the GAFJ department into issuing an arrest warrant at the time of Metsuboros's death. By the time he was on the run from authorities, Kaburagi's body started to take its toll and this forced Celebro to possess the GAFJ captain Asano. Kaburagi awakened for the first time in a while, but he was arrested and scapegoated for all of the atrocities done by Celebro during his possession.
Under unknown circumstances, Kaburagi was released from custody at some point before or after Celebro stole Ultroid Zero to enact his Civilization Self-Destruction Game. He appeared after the final battle, assisting Yuka in capturing Celebro (who had managed to survive the destruction of Destrudos) just before Juggler could harm him, with full intention on helping the enthusiastic scientist in dissecting the parasite. Rather than meet his end in battle, Celebro now faced an even more ironic fate, in that he was to be taken apart for study by the very first person he attempted to control. .
- Height: 179 cm
- Birthdate: April 11, 1994
- Blood type: O
- Birthplace: Kishinoda City, Osaka Prefecture
"Belial. Ancient Monster. Skull Monster. Kiete karekareta."
- ―Activation announcement for Skull Gomora
"Belial. Extradimensional Terrible-Being. Space Monster. Kiete karekareta."
- ―Activation announcement for Thunder Killer
"Ultra Ancient Monster. Ultra Ancient Dragon. Space Combat Beast. Kiete karekareta."
- ―Activation announcement for Tri-King
"Strange Creature. Space Sea Monster. Kiete karekareta."
- ―Activation announcement for Five King
- Powers and Weapons
- Hazmat Suit: Apparently due to his line of work, it is possible that Shinya is required to wear a green hazmat suit and an oxygen mask in order to investigate hazardous substances.
- Z Riser (ゼットライザー Zetto Raizā): A similar device to the one that Haruki and Riku use, "Shinya" uses a model that Celebro stole from the Land of Light.
- Kaiju Medals (怪獣メダル Kaijū Medaru): A set of medals created by Celebro from reverse-engineering the Ultra Medals.
- Enhancement: A Kaiju Medal can be used to enhance a Kaiju using the respective Medal's power.
- Ultra Access Card Kaburagi Version (ウルトラアクセスカード カブラギver. Urutora Akusesu Kādo Kaburagi Bājon):[K 1] The card which bears Shinya's name and image, he sets into the Z Riser as a means of authorization.
- Medal Gatcher (メダルガッチャー Medaru Gatchā): Celebro has a machine hidden in his Fake Hero's Gate, which he uses to create Kaiju Medals.
- Gun: A custom gun wielded ever since Gillvalis' arrival on Earth. He later obtained another gun that he used when attempting to defend against Jugglus Juggler and Haruki's assault on his hideout in search of the Belial Medal. The gun was sacrificed to create an unknown Kaiju Medal, at some point prior to Horoboros' transformation into Metsuboros.
Kaiju Medals in Possession
- Jirahs (x2; first one destroyed)
- Red King
- Ace Killer
- King Joe
- Ultraman Belial (x2; both Medals lost)
- Five King's Medal components (lost from Juggler's ambush)
- Galactron MK2
- While posing as a JAERC officer, "Kaburagi" uses the pseudonym Masaaki Higashi (東 正明 Higashi Masaaki). 
- His arrest warrant in episode 17 revealed that Kaburagi's height and birthplace are 179 cm (1.79 m) and Osaka respectively. These attributes were taken from his actor, Rihito Noda, per his resume.
- In the original Figure-Oh magazine release, it was named as Ultra Access Card (Celebro) (ウルトラアクセスカード (セレブロ) Urutora Akusesu Kādo Sereburo).
- File:Shinya Kaburagi data.jpg