is a Japanese tokusatsu series that serves as the 46th installment in the Super Sentai franchise and the third entry in the Reiwa era. The series also acts as a sequel for the previous entry, Kikai Sentai Zenkaiger.

Main characters Donbrothers The eponymous Donbrothers are five individuals who join to rescue humans who turned into monsters called "Hitotsuki" while protecting them from alien beings called "Nouto". They utilize in conjunction with the sidearm to transform into forms based on characters of the Momotarō folktale, in a similar fashion to the Zenkaigers' Sentai Gear system. Like the Sentai Gears, the Avataro Gears usually stored in the belt also include legend items based on the Donbrothers' 46 Super Sentai predecessors that allow them to assume the form of a past Sentai team, with the limitation that each Donbrother can only transform into a past Sentai member of the same color (the only exceptions are Taro, who in addition to past red warriors can transform into the white-colored Zenkaizer, and (Dark) Jiro, who can transform into any past Sentai team's sixth member regardless of color). In civilian form, they can still see the Anoni in their true forms and use the Nouto Layer for fast traveling with special sunglasses each of them possess.

Taro Momoi Found in a peach-shaped capsule as a baby and raised by Jin, is 21 years old and lives alone, working part-time at the delivery firm, but in reality, he just a lonely, cold person. He eventually loses all of his memories and works at the delivery firm. Taro regains all of his memories a year later through Kaito's help and returns to his life as the Donbrothers' leader.

Taro can transform into the red-colored . While transformed, he wields the katana. He also rides the motorcycle, which forms the right half of Don ZenkaiOh. Additionally, he can assume the following forms: : Taro's small-sized mecha form accessed from his personal that can switch between peach and humanoid modes. : A tank-themed combination of Don Momotaro Alter and the ToQger Alter. : A bird-themed combination of Don Momotaro Alter and the Zyuohger Alter. : A centaur-themed combination of Don Momotaro Alter and the Ryusoulger Alter. : Taro's Momotarō-themed mecha form accessed from his personal that forms the head, torso, and upper legs of Don Onitaijin. : Taro's power-up form accessed from the small-sized mecha that grants photokinesis and the ability to generate peach-like force fields. : A special form accessed from a variant of the Zanglassword called the , which is summoned through the , that clads Taro in Zenkaizer's armor and cape. This form appears exclusively in the V-Cinema Avataro Sentai Donbrothers vs. Zenkaiger : A special form accessed from the that clads Taro in King Kuwagata Ohger's armor and cape. This form appears exclusively in the V-Cinema Ohsama Sentai King-Ohger vs. Donbrothers.

During the events of the web-exclusive special Avataro Sentai Donbrothers vs. Avataro Sentai Donburies, Taro transforms into an alternate version of Don Momotaro known as .

Taro Momoi is portrayed by . As a child, Taro is portrayed by .

Shinichi Saruhara is a 21-year-old wise but eccentric young man who is the brains of the team. He never had a job and maintains himself with gifts from those he helps with his wisdom. During Jiro's takeover as the Donbrothers' leader, Shinichi runs a private school of his own.

Shinichi can transform into the blue-colored, burly . While transformed, he gains superhuman strength. He can also use his personal Robotaro Gear to transform into the gorilla-themed mecha, which forms the arms and torso plate of Don Onitaijin.

During the events of the web-exclusive special Avataro Sentai Donbrothers vs. Avataro Sentai Donburies, Shinichi transforms into an alternate version of Saru Brother known as .

Shinichi Saruhara is portrayed by .

Haruka Kitou is the main viewpoint character of the show (though Taro is the actual protagonist). A 17-year-old clueless student at and aspiring manga artist who lives with her aunt, Yuriko. Just after receiving an important prize of her debut work, , her career was destroyed when she was falsely accused of plagiarism by mysterious manga artist Naoki Shiina and now works part-time at the Donbura coffee shop, initially unaware of Kaito's secret identity as Zenkaizer Black. Haruka would later learn that Naoki Shiina is actually a version of herself from the future of a parallel universe, though upset that her alternate future self failed to clear her name before leaving. At the end of the series, Haruka continues her work with Sonoza's help, and publishes her award-winning manga based on the Donbrothers' adventures, this time without consequences.

Haruka can transform into the yellow-colored . While transformed, she wields the kanabō. She can also use her personal Robotaro Gear to transform into the oni-themed mecha, which forms the right lower leg of Don Onitaijin.

During the events of the web-exclusive special Avataro Sentai Donbrothers vs. Avataro Sentai Donburies, Haruka transforms into an alternate version of One Sister known as .

Haruka Kitou is portrayed by .

Tsubasa Inuzuka is a 24-year-old struggling actor who became a fugitive after being falsely accused of putting his theater troupe in a coma and the disappearance of his girlfriend Natsumi, the true culprit being the Crane Juto. His search for Natsumi leads him to the Crane Juto after she assumed the identity of Miho Kijino, putting him at odds with Tsuyoshi. Despite having later cleared his name, Tsubasa becomes a fugitive again as the compensation for using his Kibi-Points to save Sononi's life. This resulted in costing his relationship with Natsumi, but decides to let her go knowing she'll be more happier with Tsuyoshi. At the end of series, he is still currently on the run, this time with his new love interest Sononi. During Jiro's takeover as the Donbrothers' leader, Tsubasa and Sononi run a pastry shop together before they resume their lives as fugitives.

Tsubasa can transform into the black-colored, diminutive . While transformed, he wields a giant shuriken. He can also use his personal Robotaro Gear to transform into the dog-themed mecha, which forms the left lower leg of Don Onitaijin.

During the events of the web-exclusive special Avataro Sentai Donbrothers vs. Avataro Sentai Donburies, Tsubasa transforms into an alternate version of Inu Brother known as .

Tsubasa Inuzuka is portrayed by .

Tsuyoshi Kijino is a 33-year-old just-married employee of the company who works to support his wife, Miho. Unaware of his wife's true nature as a Juto, Tsuyoshi is so protective of Miho that he is usually violent towards anyone who threatens her and even turns into a Hitotsuki a few times out of his desire to protect her or stay by her side, until he is finally convinced by the other Donbrothers that she was a Juto in disguise, leaving him devastated. Tsuyoshi then quits his job and decides to move from the apartment he shared with Miho, until he is approached by Natsumi, who shared her memories with Miho while she was being held hostage and decided to live with him. During Jiro's takeover as the Donbrothers' leader, Tsuyoshi serves as president of Pheasant Consultant.

Tsuyoshi can transform into the pink-colored, tall and thin . While transformed, he gains flight capabilities. He can also use his personal Robotaro Gear to transform into the pheasant-themed mecha, which forms the shoulder armor of Don Onitaijin.

During the events of the web-exclusive special Avataro Sentai Donbrothers vs. Avataro Sentai Donburies, Tsuyoshi transforms into an alternate version of Kiji Brother known as .

Tsuyoshi Kijino is portrayed by .

Jiro Momotani is a 21-year-old aspiring hero who met Taro once in high school, having a similar origin in found in a peach-shaped capsule as a baby and raised by Terasaki in a village facility. He left his village following Taro's disappearance, claiming it to be a voice in his head urging him to become a hero. He would eventually learn the truth of his adopted parent being a Juto and his hometown being a fabrication, which leaves him devastated, until he and Dark Jiro decide to move on with their lives by fusing both personalities into one. Following Taro's disappearance, Jiro gained great support from Kentarō Gōda, who once became the Hitotsuki Denjiki, and took over as the Donbrothers' leader for the period of one year before Taro makes his return as the team's leader.

Unlike the primary Donbrothers, Jiro utilizes the ji, which can switch between and , to transform into the gold-colored . While transformed, he primarily wields the Ryuko no Geki in Spear Mode. He is also equipped with the gong-like buckler, which stores his Avataro Gears and allows him to transform into the sixth members of past Sentai teams. Additionally, he can assume the following forms: : Jiro's small-sized mecha form accessed from his personal Avataro Gear Alter that can switch between dragon and humanoid modes. : A combination of Don Doragoku Alter and the Ninninger Alter. : Jiro's dragon-themed mecha form accessed from his personal Robotaro Gear that forms the helmet, visor, outer arms, chest armor, back, and lower legs of Toradoragonjin. : Jiro's power-up form accessed from a Robotaro Gear which the small-sized mecha changes into that grants similar capabilities as Goldon Momotaro. This form appears exclusively in the web-exclusive special Avataro Sentai Donbrothers vs. Avataro Sentai Donburies.

Jiro Momotani is portrayed by . As a child and a teenager, Jiro is portrayed by and respectively.

Dark Jiro , also known as by Haruka, is Jiro Momotani's overly-competitive original personality whom everyone assumed was a manifestation of Jiro's desire to become a hero taken to the most extreme.

Similarly to his alternate personality, Dark Jiro utilizes the Ryuko no Geki to transform into the silver-colored . While transformed, he primarily wields the Ryuko no Geki in Axe Mode. He is also equipped with the Tiguardora. Additionally, he can use his personal Robotaro Gear to transform into the tiger-themed mecha, which forms the head, inner torso, inner arms, and upper legs of Toradoragonjin.

As with the original Jiro, Dark Jiro is also portrayed by Raizou Ishikawa.

Alters Using Avataro Gear Alters, Don Momotaro Alter and Don Doragoku Alter can summon other small-sized mecha themed after some mecha pertaining to the previous Super Sentai that can also combine with them for enhanced capabilities. : A Red Ressha-themed Alter. : A trio of Cube Eagle, Shark, and Lion-themed Alters. : A Kishiryu Tyramigo-themed Alter. : A Nin Shuriken-themed Alter that can enlarge to serve as a flying vehicle for Don Doragoku to ride into battle. : A Red Dial Fighter-themed Alter. : A Trigger Machine 1gou-themed Alter.

Good Strike Bazooka The is a Good Striker-themed combination of the Lupinranger and Patranger Alters.

Don ZenkaiOh is a giant robot formed by the combination of an enlarged Enya Rideon and Juran Tyranno via that is equipped with the wrist-mounted and . It first appeared in episode 42 of Kikai Sentai Zenkaiger.

Don Onitaijin is a giant robot formed by the combination of the primary Donbrothers' Robotaro forms that dual wields the twin and can enlarge to fight a Hitotsuking.

Toradoragonjin is a giant robot formed by the combination of Don Robogoku and Don Robobolt that wields the sword and the claw, and can enlarge to fight a Hitotsuking.

Toradora Onitaijin is a giant robot formed by the combination of Don Onitaijin and Toradoragonjin that wields the and can ride the .

Goldon Onitaijin is a giant robot formed by the combination of Don Onitaijin and an enlarged Omikoshi Phoenix when the Robotaro Gear is used that wields the and the .

Toradora Onitaijin Kiwami