The Labour Union of Dubbing of Hong Kong was established on September 20, 2015. Its members are engaged in the Cantonese voice acting industry in Hong Kong, including directors, voice actors, translators, and scriptwriters, many of whom are freelance workers. Currently, there are over 70 members dedicated to improving the working conditions and promoting the healthy development of the industry.

The Cantonese voice dubbing industry in Hong Kong has gained recognition from audiences over the years, with numerous popular dubbed dramas and cartoons. The voices of many voice actors have become nostalgic memories for Hong Kong people and have become iconic. This achievement resulted from the collective efforts of professionals in various positions within the industry, especially during a time when the local television industry did not produce enough self-produced programs, and dubbed programs played a significant role. Many veteran voice actors and professionals have laid a solid foundation for the voice dubbing industry, making it a desirable profession for young people.

However, with the transformation of the television industry, most TV stations and channels now outsource the voice-acting process. As a result, the number of freelance voice actors has increased, but the market has not naturally adjusted to create a conducive and healthy employment model. Freelance voice actors face issues such as compensation, working conditions, payment methods, and timely remuneration, among others. The situation is far from ideal, and there is an urgent need for improvement, which led to the establishment of the union.

The union, formerly known as "聲級行動" was a collective effort by numerous voice actors to fight for their rights. With a long-term vision in mind, the union was officially established to contribute to the long-term interests and development of the industry. Since Cantonese is closely related to the industry's development, the union's goals not only include advocating for the rights of professionals but also promoting the Cantonese language. This endeavor undoubtedly benefits the industry's development and contributes to the preservation of local culture.