Danny’s father. Buchan portrays Mark’s grief as a silent, explosive rage. Struggling to support his wife while hiding his own secrets (an affair and a violent altercation with the victim), Mark becomes a prime suspect. His silent howls on the beach remain one of the season’s most haunting images.

The older sister. Chloe serves as the teenage bridge between the adult world and Danny’s secret life. She holds crucial information about Danny’s relationship with a local newsagent, and Beaumont captures the confusing guilt of a sibling trying to survive in a house that has collapsed. The Townspeople: The Web of Suspects Matthew Gravelle as Joe Miller The reveal of Joe Miller as the killer is one of the greatest twists in TV history. For ten episodes, Gravelle plays the "perfect husband": supportive, kind, and boring. He is Ellie’s stay-at-home husband and a youth football coach. The final interrogation scene, where his mask drops to reveal a cold, confused predator, is a masterclass in quiet terror.

A hotshot national newspaper journalist. McClure is brilliant as the ruthless outsider who arrives to exploit the tragedy. She is Hardy’s ex-wife and has no loyalty to Broadchurch. Her relationship with Olly is a toxic partnership that turns the murder into a media circus.

When Broadchurch premiered on ITV in 2013, it did more than just solve a murder. It redefined the British crime drama. Set against the breathtaking, claustrophobic backdrop of the fictional Dorset town of Broadchurch, the show’s success rested on two pillars: Chris Chibnall’s atmospheric writing and an absolutely flawless ensemble cast.