Japanese voice actor Kenjiro Tsuda filed a lawsuit against the operator of TikTok alleging the unauthorized use of AI-generated imitations of his voice [1].
The case represents a pivotal legal moment for the entertainment industry as it grapples with generative AI. It is believed to be the first lawsuit of its kind in Japan specifically targeting AI voice cloning [1].
Tsuda filed the action in the Tokyo District Court in November 2025 [1, 2]. The lawsuit seeks the removal of content that uses generative AI to imitate his voice without his permission [1, 2, 3].
According to documentation, the lawsuit cites 188 unauthorized videos [3]. Other reports describe the volume of content as nearly 200 videos [3]. These videos allegedly utilize illegal voice cloning technology to replicate Tsuda's unique vocal characteristics for public consumption on the social media platform [1, 2, 3].
Voice actors in Japan have long relied on strict contractual protections for their performances. The rise of high-fidelity AI cloning allows users to create new dialogue without the actor's involvement, a development that threatens the traditional business model of the industry [1, 2].
Legal representatives for the actor said that the platform's failure to prevent these clones constitutes a violation of his rights [1, 3]. The case focuses on whether the operator of a platform can be held liable for AI-generated content that mimics a real person's identity [1, 2].
“It is believed to be the first lawsuit of its kind in Japan specifically targeting AI voice cloning.”
This litigation sets a potential legal precedent for 'personality rights' in the age of generative AI. If the court rules in favor of Tsuda, it could force social media platforms to implement stricter filtering for AI-cloned biometric data and establish a legal framework for how voice actors are compensated or protected from digital duplication.
