The article provides an overview of the cast involved in the upcoming Channel 4 factual-drama series 'Dirty Business', highlighting its star-studded lineup. This series delves into significant issues surrounding sewage pollution and its effects on communities and individuals, a timely topic given the increasing public focus on environmental issues. Key actors such as David Thewlis from 'Harry Potter', Jason Watkins from 'The Crown', and others contribute to a narrative that discusses the real-life challenges faced by whistleblowers and victims affected by the water companies' negligence.

Moreover, 'Dirty Business' presents a gripping story that follows two detectives uncovering the harsh realities behind contaminated water, reflecting both the personal stories impacted by this crisis and the systemic issues at play. It draws from a thorough investigation of a decade's worth of incidents and connects these historical events to broader themes of accountability and environmental responsibility. As a factual drama, it not only entertains but also educates viewers about the stakes involved in clean water access and corporate responsibility.

The cast comprises well-known actors from various prominent shows, emphasizing its appeal and the potential for significant viewer engagement. The synergy of its investigative roots and dramatic storytelling suggests that 'Dirty Business' may resonate deeply with audiences, bringing attention to critical issues within the water supply sector in England and potentially influencing public discourse on related environmental and health matters.