Coronation Street is heading into darker psychological territory as the truth about DI Costello’s grip on Lisa Swain continues to unravel. Actor Daon Broni has now shed new light on the twisted dynamic between the two characters, revealing that Costello’s behaviour goes far beyond professional deceit. It is slowly becoming a disturbing pattern of emotional control.

A Web of Secrets and Lies

Viewers will remember Costello’s part in Becky’s fake death. He identified the body of Tia Wardley, a vulnerable woman he killed, and passed it off as Becky to orchestrate her escape. He then sent Becky to Spain and allowed Lisa to believe her wife had died.

With Becky now back in Weatherfield, the pressure on Costello has reached breaking point. He desperately pushes Becky to return to Alicante and has even issued chilling threats to keep her silent. Yet Daon Broni suggests that the line between genuine danger and psychological manipulation is not so simple.

Costello’s True Motives Remain a Mystery

Daon admitted that Costello is capable of terrible choices, but the character’s intentions are not always clear. He said it is up to viewers to decide whether Becky or Costello is the greater threat. That uncertainty is what makes the storyline so gripping.

Lisa, meanwhile, remains completely unaware of the storm around her. Costello hides everything from her with calculated precision. Their professional closeness makes his control even more unsettling, as he dictates what she knows, what she sees and what she believes.

A Disturbing Dynamic Forms

Daon revealed that he and Vicky Myers, who plays Lisa, discussed how their characters’ relationship has a chilling undertone. Costello manages the information Lisa receives. He shapes her understanding of events. He shifts her perception without her realising it.

The result is a dynamic that resembles coercive control. Costello masks his intentions behind charm and authority. He uses his position within the community to maintain respect and avoid suspicion. Daon described him as a narcissist who is always aware of the power he holds.

A Story That Is About to Get Even Darker

The feud between Becky and Costello is far from over, and the danger around Lisa grows with each lie he tells. New twists are on the horizon, and the bond between Costello and Lisa may fracture as hidden truths rise to the surface.

For the full insight into Daon Broni’s thoughts and a closer look at the next dramatic chapter, fans can pick up the new issue of Inside Soap from Tuesday, eighteen November.