Mononoke film trilogy producer Koji Yamamoto announced his retirement and issued an apology after backlash over Takahiro Sakurai's unannounced return as the Medicine Seller in the third film.
Mononoke film trilogy producer Koji Yamamoto has announced his retirement from producing and issued a public apology following widespread backlash over the unannounced return of voice actor Takahiro Sakurai in the franchise's third film, Chapter III – The Curse of the Serpent.
Takahiro Sakurai originally voiced the Medicine Seller, the enigmatic protagonist at the heart of the Mononoke franchise, dating back to the original 2007 television anime. In 2022, reports published by Bunshun Online alleged that Sakurai had engaged in an extramarital affair, prompting significant public backlash in Japan. The fallout led to Sakurai being removed from the Mononoke film trilogy's cast.
Hiroshi Kamiya was subsequently cast as the lead for the film series, portraying a new incarnation of the Medicine Seller rather than directly replacing Sakurai's version of the character. The first two films in the trilogy proceeded with Kamiya in the role, and audiences accepted the transition as a clean creative break from the controversy.
When Chapter III – The Curse of the Serpent launched in Japanese theaters on May 29, 2026, audiences discovered something the production team had deliberately kept secret: Takahiro Sakurai appeared in the film reprising his role as the original Medicine Seller in a cameo. Neither the marketing materials nor any pre-release announcements had indicated that the original character would appear, let alone that Sakurai would voice him.
The revelation split the fanbase. Some viewers welcomed Sakurai's return as a meaningful nod to the franchise's roots, while others felt blindsided by the decision to quietly bring back a voice actor who had been removed under controversial circumstances. Critics of the move argued that by withholding the casting information, the production team denied audiences the ability to make an informed decision about whether to see the film.
Yamamoto addressed the controversy in a public statement on June 5, 2026, acknowledging that the decision to conceal Sakurai's involvement for three days after the film's theatrical launch had been intentional. The production team had wanted the cameo to serve as a surprise for longtime fans of the franchise. However, Yamamoto conceded that this approach backfired, as it left those opposed to Sakurai's return unable to decide beforehand whether they would skip the film.
In his statement, Yamamoto expressed that he was "keenly aware of his naivety" in handling the situation. He apologized to fans who felt deceived or uncomfortable and announced that he would take full responsibility by retiring from producing entirely. The retirement marks a significant departure for Yamamoto, who shepherded the Mononoke film trilogy through its multi-year production.
The incident has reignited discussion within the anime industry about how productions handle voice actors involved in personal scandals. Japan's entertainment industry has historically taken a strict approach to public figures embroiled in controversy, and the Mononoke situation highlights the tension between creative intent and audience trust. The decision to reintroduce Sakurai without transparency, even in a limited cameo capacity, undercut the goodwill that the recasting with Kamiya had originally established.
The Mononoke film trilogy, which adapts and expands on the cult-classic 2007 anime series, now carries an unavoidable asterisk as it concludes its theatrical run. Whether Yamamoto's retirement and apology will be enough to quell the backlash remains to be seen, but the controversy has already become one of the most talked-about incidents in the anime industry this year.
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