This article is about a/an character in Kamen Rider Ex-Aid.

Heiji Uesugi (上杉 平次 Uesugi Heiji) is a policeman whom hosted the Level 30 Kaiden Bugster.

Character History

Uesugi lost his beloved son to the Bugster virus during Zero Day. His son's death was seemingly avenged when Genm Corp. CEO Masamune Dan was arrested for allegedly masterminding the outbreak.

Five years later, Uesugi's suspicions were raised following the disappearance of two people connected to Masamune: Kuroto Dan, Masamune's son and suceeding CEO of Genm Corp, and Kiriya Kujo, a coroner who was last seen visiting Masamune in prison. He went to interrogate Masamune himself, but received no answers from the prisoner. The frustration from Dan's silence triggered the Bugster virus which had been dormant in Uesugi's body. The doctors from CR arrived soon after, but Uesugi's desperate attempts to continue his investigation only aggravated his condition, causing an outbreak.

The outbreak was eventually contained, and Uesugi was transported to CR. After explaining his motives, the policeman was assured by Dr. Emu Hojo that he would continue investigating in his place. Eventually, the Bugster broke out again, forcing an operation. The Kaiden Bugster was removed from Uesugi's body, but left the officer in the game arena. Retreating to a hiding spot, Uesugi witnessed Kuroto Dan's monologue, learning the truth about Zero Day and the fate of the two missing individuals. He left CR soon after, determined to bring the true culprit behind Zero Day to justice.

With Kuroto's death at the hands of Parado, Uesugi's son is finally being avenged, despite the Bugsters' threats still continues.

Unfortunately when Masamune is released and revealed his true evil color after the mass production of the Kamen Rider Chronicle Gashats, Heiji's suspicion on Masamune during the latter's time in prison was right all along, as Heiji happened to be looking at the right culprit from beginning. Chasing the Mystery!

Emu's speech

Heiji Uesugi fin

Uesugi sees Emu speaking out.

Following the demise of Masamune Dan, Uesugi was at his station when he saw Emu speak at a televised press conference by the Ministry of Health. Hearing the name of his son among the list of victims of the Game Disease struck a chord with him. Endless Game


KREA-Kaiden Bugsterl30

Kaiden Bugster

Level 30 (レベル30 Reberu Sātī): Kaiden's main form. Like other Level 30 Bugsters, it overtakes the host's form when they become stressed enough.

Powers and Abilities
Swordsmanship Proficiency
As a boss character of Giri Giri Chambara, Kaiden possess tremendous skill in swordsmanship. His usage of Kaiden Sword-Pair implies him to be a practitioner of nitoryū.
Kaiden Sword-Pair (カイデンスウォード・双 Kaiden Sōdo Sō)
A pair of katana utilized by Kaiden. When any Collabos Bugsters utilized the power of Giri Giri Chambara, one of the Kaiden Sword is inherited to them as Collabo Sword.

Appearances: Ex-Aid Episodes 21

Behind the scenes


Heiji Uesugi is portrayed by recurring guest actor Taro Suwa (諏訪 太朗 Suwa Tarō).



Icon-exaid Kamen Rider Ex-Aid
Kamen Riders
Emu Hojo - Hiiro Kagami (Game World) - Taiga Hanaya - Kiriya Kujo - Kuroto Dan - Parado - Asuna Karino/Poppy Pipopapo - Masamune Dan - Ride-Players (Nico Saiba - Haima Kagami) - Genm (Bakusou Treasure) - Kagenari Nagumo - Ninja-Player - Black Parado
Game Scope - Gamer Driver - Kimewaza Slot Holder - Rider Gashat - Energy Items - Buggle Driver (II) - Bugster Buckle - Gashat Gear Dual (β - Another) - Rider Gauges - Rider Gashat Case - Energy Item Holder
Gashacon Weapons
Gashacon Breaker - Gashacon Sword - Gashacon Magnum - Gashacon Sparrow - Gashacon Bugvisor (II - G) - Gashacon Key Slasher - Ride Weapon - Gashacon Parabragun - Fuma Sōzantō - Genin Weapon
Robot Gamer - Beat Gamer - Combat Gamer - Chambara Gamer - Sports Gamer - Hunter Gamer - Bike Gamer - Burger Gamer - Fantasy Gamer - Simulation Gamer - Maximum Gamer - Safari Gamer - Tank Gamer - Legacy Gamer - Pac Gamer - Famista Gamer - Xevious Gamer - Galaxian Gamer
Asuna Karino - Haima Kagami - Kyotaro Hinata - Ginko Yumita - Nico Saiba - Satsuki Ogimachi - Mizuki Nishikikoji - Tsukuru Koboshi
Others: Saki Momose - Sakurako Dan - Eight Kirino - Saiko Yaotome
Locations: Seito University Hospital - CR - Ministry of Health - Genm Corp. - Game World - Machina Vision - Next Genome Institute
Generals: Parado - Graphite - Ren Amagasaki - Gamedeus
Movie-exclusive: Michihiko Zaizen - Pac-Man Virus - Hatena Bugster - Soji Kuruse - Kazushige Ryuzaki - Ageha Takeda - Johnny Maxima - Nebula Bugster
Stageshow-exlusive: Futago Bugster
Regular Bugsters: Bugster Virus - Bugster Union - Salty Bugster - Aranbura Bugster - Revol Bugster - Motors Bugster - Collabos Bugsters (Gekitotsu - DoReMiFa - Giri Giri - Jet - Kamen Rider Genm series) - Burgermon Bugster - Gatton Bugster - Vernier Bugster - Kaiden Bugster - Charlie Bugster
Regular Games: Mighty Action X - Taddle Quest - Bang Bang Shooting - Bakusou Bike - Gekitotsu Robots - DoReMiFa Beat - Giri Giri Chambara - Jet Combat - Shakariki Sports - Drago Knight Hunter Z - Dangerous Zombie - Mighty Brothers XX - Perfect Puzzle - Knock Out Fighter - Perfect Knock Out - Ju Ju Burger - Night of Safari - Bang Bang Tank - Taddle Fantasy - Bang Bang Simulations - Taddle Legacy - Maximum Mighty X - Kamen Rider Chronicle - Toki Meki Crisis - Hyper Muteki - Doctor Mighty XX - Mighty Creator VRX - Hurricane Ninja - God Maximum Mighty X - Knock Out Fighter 2 - Zombie Chronicle - Mighty Novel X
Legend Rider Games: Let's Go Ichi Gou! - Adventure Guy Kuuga - Agito of the Sun - Mirror Labyrinth Ryuki - Moshi Moshi Faiz - King of Poker Blade - Taiko Master Hibiki - Insect Wars Kabuto - Time Express Den-O - DokiDoki Makai Castle Kiva - Barcode Warrior Decade - Detective Double - Jungle OOO - Space Galaxy Fourze - Magic The Wizard - Toukenden Gaim - Full Throttle Drive - Kaigan Ghost - Kamen Rider Build - Ganbarizing
Legend Games: Pac Adventure - Famista - Xevious - Taiko no Tatsujin - Galaxian
Other Games: Hatesate Puzzle - Buddhist Priest of Temple - Chou Super Hero Taisen - Chou Shocker Taisen - Bakusou Treasure - WayoseTUNE - Nazo Toki Labyrinth
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