Wataru Katō

Wataru Katō is a Japanese voice actor, known professionally as a seiyū, from Tokyo and affiliated with the talent agency I'm Enterprise. Since the late 2010s he has built a reputation as one of the busiest young character actors in anime, with roughly 40 television and film credits to his name. Fans of recent seasons know him best as Reno Ichikawa in Kaiju No. 8 and Kabru in Studio Trigger's Delicious in Dungeon, the two 2024 roles that pushed his voice in front of a much wider international streaming audience.

His range runs from the loud comic lead Rentaro Aijo in The 100 Girlfriends Who Really, Really, Really, Really, Really Love You to the quieter sports drama of Aoashi and the fantasy comedy of The Legendary Hero Is Dead!. That comic lead also carried him into the record books, a distinction fans of the series treat as the clearest proof of how far he will push a performance. He continues to record for I'm Enterprise and is cast in the upcoming Red River anime, set to premiere in July 2026. Born on July 17, 1997, he is 28 as of 2026. No conventional awards wins are documented for him, and no verified personal social media accounts exist under his name, so his profile rests on the work itself rather than on publicity. [edit]

Details of Wataru Katō's childhood and training are hard to pin down. He was born on July 17, 1997, in Tokyo, and the sources that document him professionally begin only when he joins I'm Enterprise, the agency that still represents him. What he studied, which school he attended, and how he first became interested in voice acting are not part of the public record, a common situation for Japanese voice actors who keep their pre-debut lives private. Even his birth name beyond his professional name is not documented in the retrieved sources, and no interview quotes survive from this period.

His earliest professional credits date to the late 2010s, and they are minor. The retrieved sources list them only in passing, without the character names or series titles that would let a fan trace his first steps. This is typical for newcomers in the industry: bit parts, crowd work, and small supporting roles that do not make it onto a public filmography until a bigger part arrives. For Katō, that bigger part came in 2020 with Kokufu in the sci-fi mystery Id – Invaded, the first role that reference sites consistently list for him and the one fans point to when they want to mark where his career really starts.

Before that break, he was one of many young actors on I'm Enterprise's roster, auditioning and taking whatever parts came. The absence of a documented discovery story, a televised audition, or a viral moment is itself telling. Katō's path into the industry was the slow, unglamorous one: agency training, small roles, and a gradual accumulation of credits rather than a single star-making vehicle. Nothing in the record suggests a family connection to the business or an early patron who opened doors for him. [edit]

The 2020 casting as Kokufu in Id – Invaded gave Katō his first widely cited role, and he followed it with a steady stream of parts that showed his range. In 2022 he voiced Martis Jun Asari in the football drama Aoashi, his first major sports series. The next year was his busiest: Touka Scott in the comedy fantasy The Legendary Hero Is Dead!, Squale Mill Kadorecheck in the isekai series Sweet Reincarnation, and the lead role of Rentaro Aijo in The 100 Girlfriends Who Really, Really, Really, Really, Really Love You. That last part called for sustained comic energy across a huge ensemble, and it became the role most closely associated with him.

2024 brought the two roles that widened his international audience. He voiced Reno Ichikawa in Kaiju No. 8, one of the year's most-watched anime worldwide, and Kabru in Studio Trigger's Delicious in Dungeon. He also appeared in Mission: Yozakura Family that year. In July 2025 the 100 Girlfriends anime set a Guinness World Record for the longest monologue in Japanese anime, a distinction tied directly to his performance as Rentaro; IMDb news coverage from April 2025 credits him specifically with recreating what the outlet called the most bizarre panel from the manga. He was added to the cast of You and I Are Polar Opposites in September 2025, and in January 2026 the series revealed a second batch of characters voiced by him and Tomori Kusunoki, alongside Miyuri Shimabukuro in the wider cast. In March 2026 he was announced as part of the cast of the Red River anime, set to premiere in July 2026, with a promotional video revealing him alongside Mirai Tachibana and Hiroki Nanami. [edit]

Katō's public image is that of a prolific, versatile young character actor rather than a celebrity personality. He does not maintain a verified social media presence, gives few personal interviews, and rarely appears in the kind of promotional content that builds a star persona outside the recording booth. No direct quotations from him appear in the retrieved sources, which reinforces the impression of an actor who lets the work speak. What fans see instead is the voice: one that moves easily between the manic comedy of Rentaro in The 100 Girlfriends, the grounded sports drama of Aoashi, and the measured fantasy of Delicious in Dungeon. That flexibility is the thing casting directors and fans tend to mention first. In an industry where many voice actors cultivate a recognizable signature sound, Katō's reputation rests on disappearing into a part rather than on a single trademark delivery. [edit]

iFANN has not yet gathered fame data for Wataru Katō, so there is no ranking to report for him as of the October 2026 data cycle. His following is real but modest, and his recognition comes almost entirely from the anime he has appeared in rather than from personal publicity. He is not on the September 2026 iFAMOUS Rankings flagship list.

The fanbase around him has no formal name and no organized campaigns that the sources document. What exists is a loose audience of anime viewers who follow specific series and notice his name in the credits. The 100 Girlfriends community is the closest thing to a dedicated following, and the record-setting monologue became a point of pride for that show's viewers. Fans of Kaiju No. 8 and Delicious in Dungeon encountered him through those adaptations, often without realizing the same actor voiced Reno Ichikawa and Kabru until they looked him up. That pattern, discovery through a role rather than through the actor's own profile, is characteristic of how voice actors at his level build an audience. His collaborators draw their own followings too, and viewers of You and I Are Polar Opposites and Red River arrive through ensemble casts that include names like Tomori Kusunoki and Mirai Tachibana. [edit]

He shares a name, written 加藤 渉, with the founder of the car-tuning company Liberty Walk, a different Wataru Kato from Owariasahi in Aichi, which regularly confuses search results and even net-worth autocomplete suggestions. That other Kato runs large Instagram and Facebook pages and generates a steady run of 2026 store-opening news, none of which belongs to the voice actor. The voice actor has no verified personal social media accounts at all. Height is not given in any retrieved source, and no magazine covers, Greatest of All Time list placements, or Hall of Fame inductions appear for him. He holds no honorary degrees, Walk of Fame stars, or national honours. The only major distinction on his record is the Guinness World Record associated with The 100 Girlfriends, and the Seiyuu Wiki attributes that record to him personally while Guinness's own release frames it as a record for the anime. [edit]

Almost nothing is public about Wataru Katō's family. The sources that cover his career do not name his parents, mention siblings, or describe his household, and no interviews exist in which he discusses his family background or upbringing. Japanese voice actors at his level often keep their private lives out of the press, and Katō appears to follow that pattern. There is no record of a spouse, children, or pets, and nothing suggests a relative working in the entertainment industry. What fans know about him comes almost entirely from his roles and his agency profile, not from personal disclosures. [edit]

Katō's most visible collaborators include Tomori Kusunoki and Miyuri Shimabukuro, both cast alongside him in You and I Are Polar Opposites. He also shares the Red River cast with Mirai Tachibana and Hiroki Nanami. His agency, I'm Enterprise, represents a long list of anime voice actors and has been his professional home since his debut. [edit]

No romantic relationships, marriage, or divorce involving Wataru Katō have been documented in any source. Japanese voice actors in his tier often keep their personal lives private, and nothing in the record contradicts that pattern. As of 2026, he has no publicly confirmed partner and is presumed single or simply private. The related search queries that mention a "Liberty Walk wife" refer to the other Wataru Kato, the founder of the car-tuning company, not the voice actor. No children are documented either. [edit]

No reliable net-worth figure for the voice actor Wataru Katō has been published. The estimates that appear in search autocomplete and related queries almost certainly attach to the Liberty Walk founder of the same name, a different person entirely, and should not be used. Japanese voice actors at Katō's level are typically paid per project rather than through the large endorsements and merchandise deals that inflate the earnings of top-tier stars, and his income would come from a steady stream of anime roles, game dubs, and agency work.

The iFANN Editorial Team's own analysis, based on the volume of credited roles and typical industry rates for a voice actor of his standing, points to a modest figure of roughly $50,000 as of 2026. That estimate reflects a working actor's income rather than celebrity wealth: dozens of supporting and co-lead parts across a seven-year career, with no documented endorsements, business ventures, or real estate holdings. Because no conventional awards wins are documented for him, there is no prize money or award-linked bump to factor in either. If his profile continues to rise with roles like Red River and further 100 Girlfriends seasons, the figure would be expected to grow, but no verified numbers exist to confirm that. [edit]

Katō's one documented major honour is a Guinness World Record for the longest monologue in Japanese anime, set by The 100 Girlfriends in July 2025. No conventional awards wins, such as a Seiyu Award, appear in the retrieved sources. [edit]