Tokyo Court Dismisses Tsuda’s TikTok Suit but Sets Precedent for Voice Rights

Key points

• The Tokyo District Court dismissed the lawsuit filed by voice actor Kenjirō Tsuda against TikTok on September 30, 2026.
• The court ruled that Tsuda’s request for video removal was moot because the account had deleted the content after the suit was filed in November 2025.
• Judge Aya Takahashi ruled that voices are protected under publicity rights, equating them to portraits in terms of legal protection.
• The lawsuit alleged that an anonymous TikTok account used AI to clone Tsuda’s voice for 188 videos between July 2024 and September 2025.
• The videos, which covered urban legends and conspiracy theories, allegedly generated between 500,000 and 750,000 yen per month in revenue.
• TikTok argued the narration used a 'generic male voice' and that viewers were not confused by the audio.

Background

This case follows a broader trend of AI-related legal challenges in the entertainment industry. In 2024, Japanese actors launched the 'No More' campaign to oppose unauthorized AI use of their faces and voices. Earlier this month, our archive noted that the Tokyo court had already signaled this precedent, highlighting the growing tension between AI innovation and intellectual property rights in the anime sector. The case also aligns with global debates on AI ethics, such as the recent US 'AI Force' initiatives and lawsuits against AI giants for collusion, though this ruling specifically addresses the commercial exploitation of individual vocal identities.

How outlets are covering it

Anime News Network reported that the court dismissed the case because the videos were removed, but emphasized the Ministry of Justice’s August guidelines which support the ruling’s logic. The Guardian highlighted the emotional and professional impact on voice actors, noting that Tsuda’s voice is described as 'lustrous' and that the industry views AI mimicry as a threat to livelihoods. Nikkei Asia focused on the legal technicality, noting that Japan lacks specific voice rights laws, making this judicial interpretation of existing publicity rights crucial. While all sources agree on the dismissal of the removal request, they differ in emphasis: ANN and Nikkei focus on the legal precedent and revenue figures, whereas The Guardian emphasizes the cultural significance for the anime industry and the 'No More' campaign.

Why it matters

This ruling establishes a legal framework for protecting vocal identity in Japan, a country where voice actors are major celebrities. It signals that AI companies and content creators may face liability for using AI to mimic voices for commercial gain. This could lead to stricter compliance measures for AI voice generators and potentially influence future legislation regarding digital identity rights in the entertainment sector.

What to watch

TikTok has stated it will review the ruling to determine next steps. The Ministry of Justice’s guidelines may lead to further enforcement actions against AI providers. Voice actors and unions may use this precedent to challenge other instances of AI voice cloning. The anime industry may see increased scrutiny of AI-generated content that mimics popular voice actors.