Netflix’sMissing Youspells out its intriguing mystery with the help of an exceptional cast. The limited series is based on the novel by Harlan Coben and follows detective Kat Donovan as an unexpected run with her ex exposes several deeply buried secrets. Directed by Sean Spencer,Missing Youis one of several Coben novels adapted to the screen by Netflix, following upThe Stranger,Stay Close, andFool Me Once. Now, with the help of actors like Rosalind Eleazar, Ashley Walters, Mary Malone, and more, this New-Years-Day limited series is the next to bring thrills and secrets to the streaming service.
Kat’s story inMissing Youbegins when she finds her ex-fiance, Josh Buchanan, on a dating app. The man had disappeared on her 11 years previous, just after the murder of Kat’s police officer father, Clint Donovan. The shock of Josh’s sudden return to social media grew when a young man reported his mother missing, explaining that she had gone on vacation with no other than Josh Buchanan. This is only the tip of the iceberg as far as Kat’s mysteries in theNetflix series, andthe further she digs,the more the characters in her life seem to be connected through secrets.

Rosalind Eleazar As Kat Donovan
Date Of Birth: June 17, 2025
English actor Rosalind Eleazarbegan her screen career appearing in TV shows likeRellikandHowards Endin 2017. That same year, she claimed the role of Violet Cross in the period drama seriesHarlots(2017 - 2018). Eleazar’s first movie role came in 2019 withThe Personal History of David Copperfield, leading to further projects likeI’m Not in Love(2021),Slow Horses(2022 - 2024), andThe House of Bernarda Alba(2023).
The House of Bernarda Alba(2023)
Angustias
InMissing You, Eleazar plays Kat Donovan, a detective whose police officer father was murdered 11 years before the Netflix series begins. Around this same time, Kat’s fiance, Josh, suddenly disappeared without a word. She tried to put all this behind her, but when Josh matches with Kat on a dating app at the same time her father’s murderer confesses that he was innocent, Kat’s history becomes difficult to ignore.
Ashley Walters As Josh Buchanan
Date Of Birth: August 17, 2025
Born in South-East London, Ashley Walker, AKA Asher D,rose to prominence as part of the UKG group So Solid Crew. Walters' music career eventually led him into acting, with appearances in projects likeBullet Boy(2004) andGet Rich or Die Tryin'(2005) in the early 2000s. Walter’s most notable roles came with 2006’sStormbreaker, 2008’sSpeed Racer, andthe leading role inTop Boy.
Top Boy(2011-2023)
Dushane
Walters plays Josh Buchanan inMissing You, Kat’s fiance, who left her without a word after her father’s tragic death. Eleven years later, Kat matches with Josh on a dating app and discovers that a missing woman from one of her cases reportedly went away on vacation with the man himself.
Mary Malone as Aqua
Date Of Birth: Unknown
Mary Malone got her start in an episode ofThe Girlfriend Experiencein 2021.Thisled to further appearances in TV projects likeChivalry(2022),Vera(2023), andDoctor Who(2023). In 2023,Malone played Jen in the Natasha Rickman movieThe Prince.
The Prince(2023)
Jen
Malone plays Aqua inMissing You, a good friend of Kat’s who used to be Josh’s roommate. After Josh left Kat, Aqua continued her friendship with the latter. However, when Josh appeared on the dating website Melody, it became clear that Aqua was hiding a dark secret from her friend.
Jessica Plummer As Stacey Embalo
Date Of Birth: July 15, 2025
English actor and singer Jessica Plummer rose to fame as part of the girl group Neon Jungle from 2013 to 2015. Around that same time, Plummer appeared in her first TV show, taking on a role in the fantasy seriesWizards vs Aliens. From there,she claimed roles in notable projects likeHow to Talk to Girls at Parties(2017),The EastEnders(2019), andThe Girl Before(2021).
The Girl Before(2021)
Emma Matthews
In Missing You, Plummer plays Stacey Embalo, another of Kat’s close friends. Stacey is a private investigator who specializes in catching cheating husbands and boyfriends. Her skills in personal investigation prove useful to Kat in her own cases, especially in tracking down Josh.
Missing You Supporting Cast & Characters
Meet The Supporting Cast Of Netflix’s Missing You
Richard Armitage as Ellis Stagger- Richard Armitage, best known for playing John Thornton in the TV seriesNoth & South, plays Ellis Stagger inMissing You, Kat’s boss.
Sir Lenny Henry as Clint Donovan- Known forThree Little BirdsandThe Lord of the Rings: The Rings of Power, Sir Lenny Henry plays Clint Donovan inMissing You, Kat’s father who was murdered.

All 11 Netflix Harlan Coben TV Shows, Ranked
No less than 11 Harlan Coben projects have been adapted into shows on Netflix. Here’s how every single collaboration ranks, from worst to best.
Steve Pemberton as Titus- The part of the criminal Titus inMissing Youis played by Steve Pemberton, known forInside No9andHappy Valley.

Marc Warren as Monte Leburne-Missing Youcharacter Monte Leburne is the criminal who went down for Clint Donovan’s murder. He is played by actor Marc Warren, best known forSafeandSexy Beast.
Lisa Faulkner as Dana Fells- Lisa Faulkner, best known forArchieandUnforgotten, plays Dana Fells inMissing You, a woman who went missing after going on vacation with Josh Buchanan.

James Nesbitt as Calligan- James Nesbitt, known forStay CloseandBloodlands, plays crime lord Calligan inMissing You.
Matt Jay-Willis as Darryl-Wolves of WarandLove Is Blind UK’s Matt Jay-Willis plays Darryl inMissing You, a man working for Titus.
Missing You
Cast
Missing You is a crime-drama television series based on the novel written by Harlan Coben. Detective Kat Donovan’s life is thrown into chaos when her fiance, who disappeared eleven years ago, suddenly appears on a dating app. With his reappearance, old wounds are reopened, including the mystery of her father, who was murdered.