Cast of The Assassin TV Series (2025)

The Assassin arrived on Amazon Prime Video as a 2025 British crime thriller, pairing Keeley Hawes and Freddie Highmore in a mother-son story tangled with secrets, danger, and corporate intrigue. The series, created by Harry and Jack Williams, spans six episodes in its first season, with development on a second season already underway as of late 2025.

The central narrative follows Julie Green, a retired assassin living quietly in Greece, whose world shifts when her estranged son Edward—an investigative journalist—reaches out after receiving an anonymous payment. Their reunion quickly turns dangerous as Julie’s past resurfaces and forces them into hiding. The cast brings together established British and international performers whose roles drive both the emotional tension and the high-stakes thriller elements of the story.

Cast of The Assassin TV Series Season 1

Season 1 of The Assassin features a focused ensemble that anchors the series’ dual narrative between Julie’s former life and Edward’s investigation into his family history. The cast performs across six episodes, with multiple actors portraying characters connected to the Cross family mining empire at the centre of the central mystery.

Key Insights on the Cast

• Keeley Hawes portrays Julie Green, a retired assassin and former soldier, with Georgina Bitmead playing the younger version of the character.
• Freddie Highmore plays Edward Green, Julie’s estranged son who works as an investigative journalist and is engaged to Kayla Cross.
• Gerald Kyd appears as Luka, a local butcher in Greece and one of Julie’s few trusted friends in the series.
• Shalom Brune-Franklin stars as Kayla Cross, daughter of billionaire Aaron Cross and Edward’s fiancée, who leads Cross Global Mining’s charitable foundation.
• Alan Dale plays Aaron Cross, the billionaire CEO of Cross Global Mining whose family sits at the heart of the series’ central mystery.
• Jack Davenport portrays Sean, an assassin and Julie’s former romantic partner, whose reappearance complicates the storyline.
• Richard Dormer takes the role of Damien Hammond, identified as Julie’s handler from her days as an operative.

Key Actors in The Assassin TV Series

The series relies heavily on its two leads. Keeley Hawes brings Julie Green to life as a woman attempting to distance herself from a violent past. Her past credits include The Bank Job and the acclaimed BBC series Line of Duty, establishing her credibility in both crime drama and thriller genres. Freddie Highmore, known for his Emmy-nominated work in Bates Motel and his long-running role in The Good Doctor, plays Edward Green as a determined journalist whose search for truth pulls his family into peril.

Supporting Ensemble

The supporting cast fleshes out the world surrounding the Greens and the Cross family. Devon Terrell appears as Ezra Cross, Kayla’s brother and Vice-Chairman of Cross Global Mining. David Dencik plays Jasper de Voogdt, a former head of IT at the mining company. Gina Gershon brings Marie Bertrand to the screen as a mysterious figure who begins tracking Edward’s movements, adding an element of surveillance tension to the narrative.

Additional cast members include Soroush Helali as Chris, Aaron Cross’s personal bodyguard, and Ali Fardi as Khaled, a Libyan National Army prison guard whose involvement connects the storyline to international intrigue. Supporting roles feature Ibraim Cândido as Afonso and Kevin Kiernan-Molloy as Michael, with Oleksandr Yatsenko in an unspecified capacity.

The Assassin TV Series Episodes

Season 1 consists of six episodes, released in their entirety on Amazon Prime Video in 2025. The UK audience gained access from 25 July 2025, while US viewers could stream the series from 20 November 2025. This staggered release approach gave British audiences an early window into the complete first season.

The episodic structure builds the central mystery across six instalments, moving between Julie’s re-engagement with her former life and Edward’s investigation into the anonymous payment. Each episode progressively reveals more about both characters’ histories and the true extent of the Cross family’s influence.

As of November 2025, Season 2 remains in development. No casting announcements for subsequent episodes have been confirmed, and production timelines have not been disclosed by the production team or Amazon Studios.

Where to Watch The Assassin TV Series

The Assassin streams exclusively on Amazon Prime Video. The platform holds the global streaming rights, with regional release dates determining viewer access windows. The series is not confirmed to be available on Netflix at this time, based on current platform listings as verified across multiple entertainment sources.

For viewers in the United Kingdom, the full season became available on 25 July 2025. Those in the United States could access the series from 20 November 2025. The release strategy reflects a growing trend of British productions securing early domestic windows before wider international rollout.

Series Production Timeline

The Assassin entered development with the Williams brothers, known for their work in British crime dramas, before formal production announcements followed. The series represents one of several crime thriller projects developed by the sibling creators for streaming platforms.

1. 2024 – Series announced by production team with initial casting confirmed
2. Early 2025 – Production completed; post-production phases finalised
3. 25 July 2025 – Season 1 premiered on Amazon Prime Video in the United Kingdom
4. 20 November 2025 – Season 1 became available on Amazon Prime Video in the United States
5. 7 November 2025 – Reports emerged confirming Season 2 was in active development

What We Know and What Remains Unclear

The core cast for Season 1 is well-documented across multiple authoritative sources including IMDb, Wikipedia, and entertainment publications. Each main character’s role and relationship to the central plot has been consistently reported.

The Assassin TV Series in Context

The Assassin arrives within a crowded landscape of British crime thrillers, but distinguishes itself through the mother-son dynamic at its centre. The premise—a retired assassin forced back into danger while protecting a son who knows nothing of her past—provides a fresh angle on familiar genre conventions.

The casting of Keeley Hawes and Freddie Highmore signals an intent to attract audiences drawn to character-driven drama alongside thriller elements. Both actors bring established track records in serialized television, with Hawes particularly recognised for her work in British crime series and Highmore known internationally through his American television commitments. For those interested in exploring similar content, the Good Movies to Watch section offers additional viewing recommendations.

Julie, living retired in Greece, reunites with Edward after he receives anonymous money and seeks answers about his father; her assassin past forces them on the run amid intrigue involving the Cross family mining empire.

– Plot summary from multiple entertainment sources

The involvement of the Williams brothers behind the camera adds continuity with their previous work in the genre. Their approach tends toward methodical tension-building and morally complex characters, qualities evident in the series’ early narrative setup.

Sources and References

Cast information and series details have been compiled from multiple authoritative sources. Wikipedia’s entry on The Assassin documents the series’ production details, cast listings, and release information with citation support. Cosmopolitan UK provides an entertainment-focused overview of the cast and their roles. Rotten Tomatoes aggregates critic and audience responses alongside basic series information.

Industry-specific sources including DirecTV’s insider guide and TV Guide’s cast listing offer detailed character breakdowns and cross-referenced casting information.

Summary

The Assassin TV series brings together a capable ensemble led by Keeley Hawes and Freddie Highmore in a six-episode British crime thriller that explores family secrets against a backdrop of corporate power and personal danger. The first season, now streaming on Amazon Prime Video, establishes the central characters and their interconnected stories while laying groundwork for further exploration in an announced second season. Those interested in similar content may find Good Movies to Watch a useful resource for additional viewing options.

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