Cast of the Loch (TV Series) – Actors, Roles and Key Facts

The Loch is a six-part British crime drama that premiered on ITV in June 2017, set against the atmospheric backdrop of a Scottish Highlands village. The series follows Detective Sergeant Annie Redford as she investigates a series of murders that gradually reveal dark secrets hidden within the close-knit community. With its blend of psychological tension and stunning loch-side scenery, the programme attracted a significant audience during its initial broadcast run.

The cast brings together established British acting talent alongside emerging performers, creating an ensemble that anchors the story’s investigation alongside its personal dramas. From the lead detective struggling to balance family life with a harrowing case, to the various villagers whose lives intersect with the mystery, each character contributes to the miniseries’ atmospheric tension. The production also draws on the famous Loch Ness legend, incorporating local folklore that adds an extra layer of intrigue to the narrative.

Below is a comprehensive guide to the actors and characters who brought this ITV crime drama to life, covering everyone from the central investigators to the supporting residents of Lochnafoy.

Who Are the Main Cast Members of The Loch?

Key Insights on the Cast

• Laura Fraser leads the ensemble as DS Annie Redford, bringing her experience from acclaimed productions including The Missing and Breaking Bad.
• Siobhan Finneran, known for her role as O’Brien in Downton Abbey, plays DCI Lauren Quigley, bringing authority to the investigation.
• Gray O’Brien, famous for his villainous turn as Tony Gordon in Coronation Street, portrays Alan Redford, Annie Redford’s husband.
• The series features several actors in their first television roles, including Murray Fraser and Keiran Gallacher.
• Scottish talent is well represented, with several cast members hailing from or associated with Scottish productions.
• The ensemble includes actors with extensive crime drama experience, with John Sessions and Don Gilet among those bringing established credentials to the investigation team.

Cast Overview Table

What Roles Do the Lead Actors Play?

DS Annie Redford (Laura Fraser)

Scottish actress Laura Fraser takes the lead as Detective Sergeant Annie Redford, a local officer who finds herself at the centre of a major investigation in her own community. The character represents a grounded, relatable protagonist whose personal and professional lives become increasingly intertwined as the case unfolds. Fraser, a native Scot, brings authenticity to the role and has previously appeared in acclaimed series including The Missing, where she played Eve Stone, and the Breaking Bad universe as Lydia Rodarte-Quayle.

DCI Lauren Quigley (Siobhan Finneran)

Arriving from Glasgow to lead the inquiry is DCI Lauren Quigley, portrayed by Siobhan Finneran. Finneran is perhaps best known to British audiences for her memorable performance as the scheming O’Brien in Downton Abbey, as well as her leading role in the critically acclaimed crime drama Happy Valley. Her casting brings a sense of authority and unpredictability to the investigation, with her character’s methods potentially clashing with those of the local police team.

Supporting Key Roles

Among the investigation team, John Sessions plays DCI Frank Smilie as a senior detective bringing experience to the case, while Don Gilet portrays forensic pathologist Dr. Blake Albrighton, whose findings prove crucial to understanding the murders. Murray Fraser appears as PC Jason Denny, an eager young officer eager to prove himself, marking one of his earliest television appearances before his later roles in Victoria and Nightsleeper.

Who Are the Supporting Actors in The Loch?

The Redford Family

Beyond the investigation, the personal lives of the main characters provide crucial narrative depth. Gray O’Brien plays Alan Redford, Annie’s husband, who operates boat tours on the loch. This occupation places him directly within the atmospheric setting that draws on Loch Ness legend. O’Brien is well known to British soap audiences for his portrayal of Tony Gordon in Coronation Street, a role that earned him Villain of the Year at the British Soap Awards in 2009. His career also includes appearances in Casualty, Taggart, Doctor Who, and Titanic: Blood and Steel.

Their daughter Evie Redford is played by Shona McHugh, portraying a rebellious teenager whose storyline runs alongside the main investigation. McHugh had previously appeared in Waterloo Road in 2006, and later in productions including Shetland, Ann, Marriage, and The Head.

Suspects and Villagers

The cast features several characters who become suspects or persons of interest during the investigation. William Ash plays Leighton Thomas, an ex-convict whose past makes him an obvious candidate for police attention. Ash has appeared in Emmerdale as Caleb Milligan, Waterloo Road as Christopher Mead, and The Rising as Michael, as well as in Paranoid and The Tunnel.

Jack Bannon portrays Kieran Whitehead, while Oliver Greenall plays his brother Jordan, who is living with locked-in syndrome. Greenall’s appearance in The Loch marked his television debut before later appearing in Armchair Detectives in 2017. Keiran Gallacher plays Jonjo Patterson, a troubled teenager with bipolar disorder, with this role marking Gallacher’s first television appearance. His career later included appearances in Weegies in 2022.

Among the adult villagers, Simone Lahbib plays Mhari Toner, Annie’s friend, with credits including EastEnders as Katy Lewis, Monarch of the Glen, Bad Girls, and Wire in the Blood. Jenny Ryan appears as Nicole Patterson, Jonjo’s mother, with previous roles including Sally Stewart in Waterloo Road and Amanda in Cracked. Ron Donachie plays Iain Sutherland, Alastair Mackenzie appears as Craig Petrie, and Shereen Martineau plays Kirsty Petrie, John Heffernan is Dr. Simon Marr, Fraser James is Oliver Tench, and Jim McMeekin is Michael Yuill.

When Was The Loch Produced and Broadcast?

The Loch was produced by ITV as a standalone miniseries, distinct from any ongoing crime drama franchises. The programme was created and written by Stephen Brady, with Brian Kelly serving as director. While it has sometimes appeared under alternative titles such as Loch Fyne or Loch Ness on the American streaming service Acorn TV, the series originally aired under the title The Loch in the United Kingdom.

1. Production announcement – The series was announced as an ITV production ahead of its 2017 broadcast slot.
2. Filming – Principal photography took place in Scotland, using the dramatic highland scenery to establish the atmospheric setting of Lochnafoy.
3. Premiere – The series debuted on ITV on June 11, 2017, beginning its six-episode run.
4. Final episode broadcast – The concluding episode aired on July 16, 2017.
5. Peak viewership – The second episode attracted the highest audience, with 6.98 million viewers.
6. Streaming revival – The series later became available on Netflix, introducing it to new audiences and becoming described as a “hit” upon its digital resurrection.

What Is Confirmed and What Remains Unclear About the Cast?

How Does the Cast Enhance the Series’ Themes?

The ensemble cast of The Loch works collectively to create the oppressive, claustrophobic atmosphere that defines the series. By grounding the supernatural elements of Loch Ness folklore within a realistic police investigation, the show relies heavily on its cast to sell both the procedural elements and the psychological horror.

The decision to cast primarily Scottish or Scotland-based actors, including lead Laura Fraser, lends authenticity to the setting. The character dynamics—between the local officer (Redford), her husband operating boat tours (Alan), and the various villagers—create a web of relationships that become suspects become potential culprits. The interplay between DCI Quigley’s outsider perspective and the local knowledge of DS Redford provides both procedural interest and character tension.

The inclusion of younger cast members, particularly those portraying characters with mental health struggles such as Jonjo Patterson, adds contemporary relevance and emotional weight to the narrative. These storylines, woven through the central murder investigation, demonstrate how the isolated community’s secrets affect its most vulnerable members.

The show has been described as a thrilling murder mystery with serial killer hunt elements, and the cast’s performances across the investigation team, the suspect pool, and the family drama ensure the story maintains momentum across its six episodes. The combination of established names like Siobhan Finneran and emerging talent creates an ensemble that balances star appeal with fresh performances.

Sources and Further Information

“The Loch is a hit ITV crime drama that later found a new audience on Netflix, praised for its thrilling murder mystery and atmospheric Scottish setting.” — RadioTimes

For those wishing to explore further, the series is available through various streaming platforms, with detailed cast information accessible through Wikipedia and RadioTimes. Full credits are available through Plex and Rotten Tomatoes.

Summary

The Loch brought together a talented ensemble of British actors to tell its story of murder and mystery in the Scottish Highlands. Led by Laura Fraser as DS Annie Redford and supported by Siobhan Finneran as DCI Lauren Quigley, the cast delivered performances that anchored the series’ blend of police procedural and psychological thriller. With a mix of established names and emerging talent, the production created a convincing portrait of a community united and divided by the events at its heart. For readers interested in similar ensemble crime dramas from this era, our Romeo and Juliet 1996 – Cast, Plot, Facts and Legacy guide offers another perspective on British television casting.

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