Japan Actors Union Sets Consent and Pay Rules for Generative-AI Use of Voices

The Japan Actors Union, a cooperative of about 2,600 actors and voice actors, published its first guidelines on generative AI and the human voice on October 15, the Nikkei reported, citing Kyodo News. The document, version 1.0, tells production companies, distributors and AI developers that a performer’s prior consent is required at every stage: when recordings are analysed and used for training, when a model that reproduces the voice is built, and when the synthetic voice is released or sold.

The union says the rules respond to a legal gap. Japan has debates over portrait and publicity rights, but no statute that protects a person’s voice as such, and members report scraped recordings being turned into clones that turn up in commercial content and fake videos. The guidelines also say consent must be sought again if a voice is still used after a contract ends, taking account of how AI tools have changed.

Payment is treated as part of the deal rather than an afterthought. The union defines the use of an AI-generated voice as a new form of performance that should be paid according to its scope. AI dubbing into English, Chinese, Spanish or other languages needs fresh permission and extra fees for overseas use. For performers who have died, any AI recreation needs strict approval from heirs or rights holders, and the union asks companies, as a rule, not to put such voices into new works or to replace human dubbing of films and dramas with AI.

What it means in practice

For studios, the guidelines read like a contract checklist, and the union pitches them as a way to lower legal and reputational risk while lawmakers catch up. They arrive as broadcasters roll out AI for effects, sports and announcing and as the government gathers views through its October call for AI regulatory pain points.

At the launch, veteran voice actor Bin Shimada, who plays the grandfather Tomozo in the anime Chibi Maruko-chan, described discovering an unauthorised AI track of one of his characters singing a song and said his anger grew as he listened. Vice-chair Michihiro Ikemizu said the industry needs rules for using AI safely and correctly, and that the union will refine the text as it hears from companies.

What to watch: whether major anime studios and dubbing houses write the consent and pay terms into contracts, and whether the union’s push for a legal right to one’s voice finds sponsors in the Diet.