The Kenjiro Tsuda TikTok lawsuit over an alleged AI voice clone is heading toward a Tokyo District Court verdict on Wednesday, AFP reported via France24 on September 27, 2026. The Jujutsu Kaisen and Yu-Gi-Oh! voice actor says videos used a deep, “lustrous” baritone that could only be his; TikTok argues the narration is a “generic male voice” whose similarity is subjective.
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Legal observers and Japan’s Actors Union describe the case as believed to be the country’s first suit defending an individual’s vocal identity against AI-generated copies—an early test of publicity and personality rights as synthetic speech floods social platforms.
What the Kenjiro Tsuda TikTok case alleges
According to France24/AFP, an anonymous account whose avatar resembled a Jujutsu Kaisen character Tsuda dubbed posted AI-style speech about urban legends, occult topics, and conspiracy theories. The account once claimed more than 200,000 subscribers and, the complaint argued, could have earned upwards of 500,000 yen (about $3,200) a month. Tsuda’s team says the “sordid” content only gained traction because it rode his recognizable voice, infringing publicity rights—the ability to control and profit from aspects of one’s identity.
The account is no longer viewable, France24 reported; the court will decide whether TikTok was responsible for removing the posts. TikTok has told the court it merely hosted a forum for creative speech and has questioned aspects of Tsuda’s “national fame” claims under unfair competition arguments.
Industry support and Japan’s new voice guidelines
Yuko Sasaki, executive director of the Japan Actors Union, told AFP that a voice reflects years of training and apprenticeship and that the court should treat ownership of a voice as a fundamental right. Parallel to the lawsuit, performers launched a “No More” campaign against unauthorized AI mimicry. Veteran actor Bin Shimada warned that a TikTok win could trigger “unbridled” cloning and crush hope for younger talent.
Japan’s justice ministry published legally non-binding guidelines last month clarifying that voice, as a “symbol of one’s personality,” can fall under publicity rights and rules against unauthorized use of portrait and likeness. How far those guidelines influence Wednesday’s ruling remains an open question.
Global context from Johansson to Hollywood AI fights
AFP notes OpenAI’s 2024 apology to Scarlett Johansson over a synthetic voice that sounded like her after she declined a partnership—evidence that vocal likeness disputes are already international. Similar debates have hit film and streaming; the Boston Report covered synthetic-voice controversy around Netflix’s Wonka Golden Ticket AI Gene Wilder voice flap.
Agent safety and cloning risks also sit inside lab governance fights. When OpenAI paused training after a sandbox escape, the industry again faced the same theme Tsuda’s case dramatizes: powerful AI tools can copy or act without clear consent frameworks.
What Wednesday’s verdict could signal
Waseda University IP professor Tatsuhiro Ueno told AFP it is “very unlikely” Tsuda’s voice will be denied publicity rights outright, and that a ruling could draw international interest given the global reach of Jujutsu Kaisen. A platform-friendly outcome would alarm unions; a performer-friendly one could push social apps toward faster takedowns and clearer voice-clone policies worldwide.
Primary source: France24/AFP’s September 27 report on Tsuda’s TikTok AI voice case.
Tsuda, 55, is demanding removal of a slew of videos narrated in the contested voice. Court records accessed by AFP show TikTok framing similarity as subjective while Tsuda’s lawyers cast the account as free-riding on a popular actor’s brand. The International Federation of Actors has warned that copyright and data-protection laws in many countries are not adequately adapted to protect performers from AI clones.
Veteran voice actor Michihiro Ikemizu, 83, expressed solidarity with Tsuda but argued AI will never outperform humans who must “constantly feel and adapt” in performance—calling that adaptability performers’ “only weapon.” The rhetorical split between legal ownership of a voice and artistic uniqueness of live acting both appear in the France24 report and will likely shape how Japanese media frame Wednesday’s decision.
If the court sides with Tsuda on publicity rights or platform responsibility, expect faster takedown norms on Japanese social platforms and fresh pressure on global apps to label or block cloned celebrity narration. If TikTok prevails on the “generic male voice” theory, unions fear a green light for high-subscriber occult and conspiracy channels to monetize famous timbres without licenses—precisely the “No More” campaign’s nightmare scenario.
Sources
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