Michael Sheen is using his platform to spotlight a decades-old environmental controversy in north Wales, while In the BBC docuseries Buried, the Welsh actor investigates how chemical waste from a now-defunct company left a toxic legacy that continues to affect communities. The series follows families with cancer who are seeking answers, revealing the challenges of holding corporations accountable for past environmental harm, according to The Guardian.

Chemical Testing Reveals Alarming Levels

The Royal Society of Chemistry (RSC) was involved in the original podcast that preceded the TV series. RSC-funded testing by Dr. Dave Megson found banned polychlorinated biphenyls (PCBs) in shop-bought fish at levels that exceeded official health guidelines—and in one case, broke the law; this highlights the persistent danger of chemical pollutants in the food chain, according to the RSC.

For Sheen, the story is deeply personal, and As a Welsh actor, he is exploring the impact of chemical pollution on his homeland and how it reflects a broader issue of inadequate regulation. The RSC points out that the UK’s approach to chemicals regulation must change to better protect public health and the environment.

Call for Regulatory Reform

The RSC is advocating for several key reforms, including closer coordination between government bodies to prevent siloed regulation, and the creation of legally binding standards for PFAS,also known as ‘forever chemicals’. The society also calls for improved water reforms to address contaminants of emerging concern (CECs) and to ensure that companies, rather than taxpayers, pay for environmental cleanup.

Sheen’s involvement in Buried is more than a dramatic narrative,it is a case study in the need for systemic change; the RSC’s policy adviser, Stephanie Metzger, was featured on the original podcast and provided expertise on chemicals management to help shape the series.

Sheen’s Diverse Media Roles

Sheen’s environmental activism is just one of many facets of his career. The actor is also set to appear in the second season of Apple TV’s Murderbot, joining a cast that includes Steve Buscemi, Patton Oswalt, and Wanda Sykes. The sci-fi series, based on Martha Wells’ novels, stars Alexander Skarsgård as a self-aware security robot handling free will and human interaction.

The second season of Murderbot is currently in production, with Apple TV ordering it in July 2025; the show has been praised for its unique take on artificial intelligence and ethics. Sheen’s role adds to the show’s star power and exposes his ability to transition between genres,from environmental documentaries to science fiction.