is a Japanese tokusatsu series that serves as the 45th installment in the Super Sentai franchise and the second entry in the Reiwa era. Some of the characters also participate in Zenkaiger'''s direct sequel, Avataro Sentai Donbrothers.
Main characters Zenkaigers The eponymous Zenkaigers consist of a lone human who leads a team of four from the parallel world of . Later in the series, the team receives assistance from the World Pirates' leader, Zocks, in their fight against Tozitend's regime and the fugitive Stacy once their fight is nearing to a close.
The Zenkaigers utilize a multipurpose firearm for transformation, combat, or to enlarge the robot members of the team. It can also access the weapons and/or abilities of past Super Sentai heroes by scanning a Sentai Gear. Their team finisher is the . When enlarged, the robot members can access stronger, mecha-like forms via and summon a giant version of the Geartlinger called the to perform a stronger version of the Zenkai Finish Buster.
Kaito Goshikida is the leader and sole human member of the team. He is a cheerful young man who is usually easygoing, but dedicates himself wholeheartedly when something piques his interest. Prior to the series, his scientist parents discovered parallel worlds before they suddenly disappeared, leaving Kaito to be raised by his grandmother.
Kaito can transform into the white-colored , . While he is incapable of fighting gigantic opponents, he can initiate the Zenkai Combinations and serve as ZenkaiOh's pilot. Additionally, he can assume the following forms: : Kaito's power-up form, also known as the , accessed from the Zenkaiju Gear that clads him in armor based on the Zyurangers' mecha Gouryuzin. In this form, he wields the , based on Gouryuzin's weapon the Mighty Dragon Spear Dragon Antler, which allows him to perform the finisher. Like the Kikainoid Zenkaigers, he can also enlarge into , which forms the main body of ZenkaijuOh and the right half of Super ZenkaiOh, and transform further into the aircraft-themed mecha, based on Gokai Silver's mecha GouZyu Drill. : A special form, also known as the , accessed from the Kirameki Zenkaiju Gear that clads Kaito in Go Kiramai Red's armor. In this form, he wields the Zenkaiten Lance. This form appears exclusively in the V-Cinema Kikai Sentai Zenkaiger vs. Kiramager vs. Senpaiger. : A special form accessed from the katana, which is summoned by Don Momotaro, that clads Kaito in Goldon Momotaro's armor and cape. This form appears exclusively in the V-Cinema Avataro Sentai Donbrothers vs. Zenkaiger.
Later in the series, Kaito acquires the rifle, which allows him to summon copies of past Super Sentai members to fight alongside him and perform the finisher. It can also enlarge and transform into the fighter jet-themed mecha, which forms the head and torso of Zenryoku ZenkaiOh.
Kaito Goshikida is portrayed by . As a child, Kaito is portrayed by in episodes 1, 15, 19, and 42, and by in episode 40.
Juran is a bold and energetic Kikainoid, as well as the oldest of the four robot members, who loves parties and enjoys being the center of attention. He is the first Kikainoid that Kaito recruits.
Juran can transform into the red-colored , . While transformed, he wields the and the , based on Daizyuzin's weapons the Dinosaur Sword God Horn and the Mammoth Shield respectively. He can also transform into the mecha, based on Tyranno Ranger's mecha Guardian Beast Tyrannosaurus, which forms the left half of (Super/Don) ZenkaiOh and the right arm of Zenryoku ZenkaiOh.
Juran is voiced by , who also voices his great-grandfather . In his human form, Juran is portrayed by .
Gaon is a passionate and eccentric Kikainoid who does not appreciate the company of other Kikainoids and mechanical beings despite being one of them as he is fond of organic beings. He is the second Kikainoid that Kaito recruits, joining so he can defend all humans and animals from Tozitend. After joining the Zenkaigers, Gaon becomes Colorful's chef.
Gaon can transform into the yellow-colored , . While transformed, he wields the , based on Gao Red's weapon the Lion Fang. He can also transform into the mecha, based on Gao Red's mecha Gao Lion, which forms the right half of ZenkaiOh and the left arm of Zenryoku ZenkaiOh.
Gaon is voiced by . In his human form, Gaon is portrayed by .
Magine is a timid and kind Kikainoid who enjoys studying magic and the occult. She is the third Kikainoid that Kaito recruits.
Magine can transform into the pink-colored , . While transformed, she wields the scepter, based on the Magirangers' sidearm the Magi Stick. She can also transform into the mecha, based on the Magirangers' mecha Magi Dragon, which forms the right half of ZenkaiOh and the right leg of Zenryoku ZenkaiOh.
Magine is voiced by . In her human form, Magine is portrayed by .
Vroon is a clumsy and curious Kikainoid with neat freak tendencies. He is the fourth and final Kikainoid that Kaito recruits, joining after he defects from Tozitend where he initially worked as a janitor in the Tozitend Palace and was abused by his former leaders. After joining the Zenkaigers, Vroon becomes Colorful's janitor and uses what little knowledge he managed to glean from Tozitend to help Kaito find his missing parents.
Vroon can transform into the blue-colored , . While transformed, he wields the battle axe, based on DaiBouken's weapon the Go Picker. He can also transform into the mecha, based on Bouken Red's mecha GoGo Dump, which forms the left half of ZenkaiOh and the left leg of Zenryoku ZenkaiOh.
Vroon is voiced by . In his human form, Vroon is portrayed by .
Zocks Goldtsuiker is a from the parallel world of who travels the multiverse in the battleship/crocodile-themed mecha with his family to find the SD Toziru Gear so he can restore his younger brothers to their original forms. In pursuit of this goal, he initially clashes with the Zenkaigers due to their Sentai Gears' similarity to Toziru Gears. His equipment is based on that of the Gokaigers and developed with technology stolen from Tozitend.
Unlike the Zenkaigers, Zocks utilizes the ship's wheel-like sidearm, which can switch between and , to transform into the gold-colored , . While transformed, he primarily wields the Geardalinger in Gun Mode, which allows him to perform the finisher. Additionally, he can assume the following forms: : A King Ranger-themed fusion form between Twokaizer and Twokai Ricky, also known as the , accessed from the latter's personal Sentai Gear that grants superhuman athleticism. Their finisher in this form is the . : A Hyper Shinken Red-themed fusion form between Twokaizer and Twokai Cutanner, also known as the , accessed from the latter's personal Sentai Gear that grants proficiency in sword fighting. In this form, they primarily wield the Geardalinger in Sword Mode, which allows them to perform the finisher. : Zocks' power-up form, also known as the , accessed from the Zenkaiju Gear that clads him in armor and a cape based on Time Fire's mecha V-Rex Robo and grants warp speed capabilities. His finisher in this form is the . Similarly to Super Zenkaizer, he can also enlarge and transform into the mecha, which forms the head and upper spine of ZenkaijuOh. : A special form, also known as the , accessed from the Kirameki Zenkaiju Gear that clads Zocks in Go Kiramai Silver's armor. This form appears exclusively in the V-Cinema Kikai Sentai Zenkaiger vs. Kiramager vs. Senpaiger.
Zocks Goldtsuiker is portrayed by .
Stacy is Barashitara's son who is a human-Kikainoid hybrid with chūnibyō syndrome and a grudge against his father for abandoning his mother and Barashitara's 893rd wife before she died. Stacy agrees to become Izirude's test subject and use his technology to prevent the Zenkaigers from interfering with Tozitend's plans and surpass Barashitara. Amidst his battles, Stacy develops an attachment to Yatsude, who reminds him of his mother. After being defeated by the Zenkaigers and ZenkaijuOh, Izirude upgrades Stacy, equipping him with new weapons and the ability to summon past red warriors in their power-up forms. Eventually however, Stacy helps the Zenkaigers in their final battle against Tozitend and kills Barashitara with Zocks' help. Following Kaito's victory over God and unsealing all of the parallel worlds, Stacy refuses the Kikainoids' offer to become their new ruler following the end of the Tozitend dynasty, but helps in Kikaitopia’s transition while occasionally visiting Colorful.
Utilizing a dark copy of the Geartlinger called the , Stacy can transform into the violet-colored , . While transformed, he can perform the finisher. After having his injuries treated and empowered by Izirude, Stacy is further upgraded into where he is equipped with a shield, arm missiles, and a chest cannon, allowing him to perform the and attacks.
: Stacaesar's personal giant robot based on the Battle Fever team's mecha Battle Fever Robo, that wields the , the , and the twin shin-mounted blades. It is destroyed by TwokaiOh Ricky and Cutanner in a duel with Twokaizer. : The first upgraded model of Battle Caesar Robo with heavy emphasis on long ranged attacks while retaining its original weapons. Its finisher is the . It is destroyed by ZenkaijuOh. : The second upgraded model of Battle Caesar Robo. : A dark copy of ZenkaiOh JuraGaon formed by the combination of and mecha. It is destroyed by ZenkaijuOh.
Stacy is portrayed by . As a child, Stacy is portrayed by .
Sentai Gears The are a series of items that the Zenkaigers and Twokaizer use to access their powers. Aside from their personal transformation items, they also possess legend items that unlock the powers of the previous 45 Super Sentai, numbered after their respective season and usually stored in either Zenkaizer's belt or Twokaizer's belt. The Zenkaigers use abilities pertaining to the original members of each Sentai team while Twokaizer gains powers based on their additional heroes. During the final battle against Bokkowaus, the Zenkaigers' personal Sentai Gears turn into Avataro Gear-shaped Sentai Gears. In Avataro Sentai Donbrothers, the Sentai Gears are also used as part of the alternate Kaito's equipment, some of which are obtained from the destruction of a Hitotsuki. By obtaining a Sentai/Avataro Gear from the destroyed monsters, the alternate Kaito is able to share its powers with the Donbrothers to initiate Avatar Changes into past Sentai warriors.
Furthermore, Stacaesar possesses dark copies of the Sentai Gears called , which he can use to create copies of past Super Sentai teams and/or mecha to fight for him. However, according to Izirude, the Dark Sentai Gears must be used sparingly or else said copies will disappear from overuse. Staceasar later gains an upgrade that allows him to summon advanced copies of the red warriors based on their power-up forms.
Transformation 16. Zenkai Juran: Juran's personal Sentai Gear, based on the Zyurangers' mecha Daizyuzin, that he uses to transform into Zenkai Juran and enlarge into Juran Tyranno. In Avataro Sentai Donbrothers, Zenkaizer Black uses it to summon a copy of Juran Tyrann to help Don Momotaro in facilitating the Don ZenkaiOh combination in the Noto Layer. 19. Twokai Ricky: Ricky's personal Sentai Gear, based on the Ohrangers' mecha Ohranger Robo, that Zocks uses to assume Ohran Form and assemble TwokaiOh Ricky. 25. Zenkai Gaon: Gaon's personal Sentai Gear, based on the Gaorangers' mecha Gao King, that he uses to transform into Zenkai Gaon and enlarge into Gaon Lion. 29. Zenkai Magine: Magine's personal Sentai Gear, based on the Magirangers' mecha Magi King, that she uses to transform into Zenkai Magine and enlarge into Magine Dragon. 30. Zenkai Vroon: Vroon's personal Sentai Gear, based on the Boukengers' mecha DaiBouken, that he uses to transform into Zenkai Vroon and enlarge into Vroon Dump.