Jo Conran (Katherine Kelly) spends her days navigating the sterile aisles of transatlantic flights as a dedicated flight attendant. Her nights are consumed by a prison in Bulgaria, where her son Sonny (Harry Cadby) serves 15 years for a murder he swears he didn’t commit. When a ruthless gang, armed with intimate knowledge of Sonny’s case, corners Jo, her world shatters. Blackmailed into using her airport access to smuggle drugs, Jo is thrust into a nightmare where one wrong move means her son’s death.

What begins as desperate compliance spirals into a fight for survival. Jo is ensnared in a web of corrupt Bulgarian detectives (Martin Razpopov), cold-blooded enforcers (Warren McCook), and calculating crime lords (Stuart Martin). With every flight, she sinks deeper into a murky underworld, her old life vanishing beneath layers of deception and violence. Yet through the terror, Jo’s resolve hardens: No sacrifice is too great to keep Sonny alive. How far will a mother fall to save her child? Don’t miss the explosive premiere.

In Flight cast & crew:

1. Katherine Kelly as Jo Conran

Katherine Kelly (“Criminal UK,” Mr Selfridge) delivers a powerhouse performance as Jo, transforming from a resilient but weary single mother into a cornered animal fighting with primal ferocity. Kelly masterfully balances Jo’s visible terror with steely, resourceful determination, showcasing a woman who discovers terrifying depths of courage when stripped of all choices. Her anguish is palpable, her resolve terrifying.

Kelly anchors the series in raw humanity. Every calculated lie, every trembling handoff, every moment of crushing guilt is etched into her performance. Jo’s journey isn’t just evasion—it’s the brutal erosion of her identity, all for the singular, desperate goal burning in her eyes: saving Sonny, no matter the cost to her soul.

2. Harry Cadby as Sonny Conran

Harry Cadby embodies Sonny Conran, the young man whose wrongful imprisonment ignites the crisis. Cadby portrays Sonny’s fading hope and gnawing fear within the brutal Bulgarian prison system, his vulnerability masked by flashes of defiance. His connection to Jo, conveyed through fraught phone calls and visitation scenes, is the series’ tortured heart.

Cadby’s performance makes Sonny more than a plot device; he’s the embodiment of innocence lost. His deteriorating physical and mental state ratchets up the stakes for Jo, forcing viewers to feel the visceral urgency of her impossible mission with every bruise and plea shown on screen.

3. Stuart Martin as Cormac Kelleher

Stuart Martin (“The Great,” Jamestown) exudes chilling control as Cormac Kelleher, the sophisticated yet brutal gang leader orchestrating Jo’s downfall. Martin crafts a villain who weaponizes charm and calculated menace, his calm demeanor making his sudden eruptions of violence even more terrifying. He sees Jo not as a person, but as disposable leverage.

Martin’s Cormac is the immovable object in Jo’s path. His intelligence and network make him a formidable adversary, constantly tightening the screws. Their tense, high-stakes interactions are masterclasses in psychological manipulation, with Martin radiating the quiet threat that Jo can never truly escape.

4. Bronagh Waugh as Melanie Delaney

Bronagh Waugh (“Derry Girls,” The Fall) portrays Melanie Delaney, likely Jo’s colleague, confidante, or supervisor within the airline. Waugh brings warmth and grounded normality, representing the life Jo is desperately trying to protect and the relationships strained by her secret double life and erratic behavior.

Melanie becomes Jo’s potential lifeline or unwitting liability. Waugh skillfully navigates Melanie’s growing suspicion and concern, adding layers of tension as Jo must deceive someone who genuinely cares, risking both their safety.

5. Ambreen Razia as Zara Gregston

Ambreen Razia (“We Are Lady Parts,” Code 404) plays Zara Gregston, a role suggesting sharp intelligence—perhaps a customs officer, investigator, or tenacious colleague. Razia excels at portraying characters who notice details others miss, positioning Zara as a potential threat to Jo’s operation or an unlikely ally trapped in the crossfire.

Razia brings necessary grit and moral ambiguity. Zara’s pursuit of truth, whether professional or personal, could collide disastrously with Jo’s secret missions, creating nail-biting scenarios where discovery means death for Sonny.

6. Ashley Thomas as Dominic Delaney

Ashley Thomas (“Top Boy,” Salvage Marines) is Dominic Delaney, likely Melanie’s partner or a figure connected to Jo’s world. Thomas often portrays characters with hidden depths or simmering conflict. Dominic could be a source of support, suspicion, or become tragically entangled in the gang’s widening net.

Thomas adds crucial texture to the domestic backdrop. His presence heightens the stakes of Jo’s deception, illustrating the collateral damage threatening to engulf not just her, but everyone close to her.

7. Angela Yeoh as Noi

Angela Yeoh (“The Singapore Grip,” Killing Eve) takes on the role of Noi. This character name hints at potential involvement in the smuggling chain – perhaps a crucial contact at a destination airport, a handler, or someone trapped like Jo. Yeoh conveys resilience and quiet desperation.

Noi represents the human cost of the criminal network. Her interactions with Jo, likely fraught with shared fear and mutual distrust, highlight the global reach of the operation and the countless lives crushed beneath it.

8. Warren McCook as Rory Rayson

Warren McCook (“The Control Room,” Waterloo Road) brings intimidating physicality as Rory Rayson, Cormac’s ruthless enforcer. McCook embodies visceral threat – a man who communicates through violence and chilling efficiency, tasked with ensuring Jo’s compliance through fear.

McCook’s Rory is Jo’s constant, terrifying shadow. His menacing presence on the ground turns every meeting, every pickup, into a potential execution, forcing Jo to confront the brutal reality of the world she’s been forced into.

9. Corinna Brown as Kayla

Corinna Brown (“Heartstopper”) portrays Kayla, likely Jo’s daughter or a younger relative dependent on her. Brown evokes vulnerability and innocence, embodying the “normal” life Jo is fighting to preserve even as she’s pulled deeper into darkness.

Kayla is Jo’s tether to humanity and her greatest vulnerability. Brown’s performance makes the audience feel the weight of Jo’s lies to protect her, and the constant terror that the gang might target Kayla to ensure obedience.

10. Martin Razpopov as Detective Ivanov

Martin Razpopov (“The Reckoning,” The Father) is Detective Ivanov, the embodiment of corrupt Bulgarian authority. Razpopov conveys weary cynicism and predatory menace, suggesting a detective more interested in maintaining power or personal gain than finding the truth about Sonny’s case.

Ivanov represents the systemic trap holding Sonny. Razpopov’s performance adds layers of institutional danger, showing how the very system meant to provide justice is weaponized against Jo and her son, making escape seem impossible.

11. Gloria Garcia as Marta Da Silva

Gloria Garcia (“The Crown,” The Spanish Princess) plays Marta Da Silva, a name suggesting connections to transit hubs or the drug trade’s logistics. Garcia likely portrays a pivotal contact – perhaps at a destination airport, a courier, or someone with leverage within the organization. Her character adds international scope.

Garcia brings sophistication and potential duplicity. Marta could be a reluctant participant like Jo, a cunning operator, or a wildcard whose actions dramatically shift the balance of power, further complicating Jo’s perilous path.

12. Julia Brown as Amy

Julia Brown (“The Last Kingdom,” Springwatch) appears as Amy. Given the shared surname with Corinna Brown’s Kayla, Amy is likely Kayla’s sister or close friend within Jo’s family circle. Brown portrays youthful concern and confusion as Jo’s behavior becomes increasingly secretive and erratic.

Amy amplifies the domestic tension. Her growing awareness of Jo’s turmoil or the lurking danger adds another layer of emotional stakes and potential risk within Jo’s already fractured home life.