The Guest is a “twisty edge of your seat thriller” landing on BBC One this week, and the cast speaks for itself.

The brand-new propulsive thriller was written, created and executive produced by Matthew Barry (the man behind Men Up, and Industry). Its addictive, fast-paced story centres on the toxic relationship between a business owner, Fran, and her employee, Ria.

Step forward TV favourite Eve Myles as successful Fran, opposite Gabrielle Creevy as Ria, whose new boss has a big influence on her…

Here’s everything you need to know about the (largely Welsh) cast of The Guest on BBC One, which starts on Monday, September 01, 2025. We reckon it’s an excellent way to start the autumn season!

The Guest on BBC One cast: Eve Myles stars as Fran Sharp

Welsh actress Eve Myles, 47, leads the cast of The Guest as Fran Sharp. And it’s a case of Sharp by name and sharp by nature. We’re in good hands with Eve, as she’s well known for her roles in thrillers, including Keeping Faith, Broadchurch, We Hunt Together, and Hijack.

Powys-born Eve has been on our screens since 1999, when she first popped up as Tracy in Hang the DJ. After small roles in TV series such as Nuts and Bolts, Tales from Pleasure Beach, and Colditz, Eve won the coveted role of Gwyneth in three episodes of Doctor Who. Her fans will know that she reprised the role in Torchwood, a spin-off of Doctor Who, between 2006 and 2011.

Other notable roles include Maggy in Little Dorrit, Ceri in Belonging, Sarah in Baker Boys, Frankie in Frankie Maddox, and Lauren Grey in You, Me & Them.

In 2008, Eve portrayed Claire Ripley in the brilliant Broadchurch, before going on to play Mrs Jenkins in Victoria, and Caitlin Henderson in Cold Feet.

She is arguably best known for leading the cast of Keeping Faith as Faith Howells, opposite her real life husband Bradley Freegard.

More recently, she’s played DS Lola Franks in the mostly underrated We Hunt Together, and Alice Sinclair in the Idris Elba thriller Hijack. Earlier this year, the mum-of-three portrayed DCI Jeanette Kilburn in The Crow Girl. Her character hunted for a killer targeting young men.

She’s been in tonnes of films, too, including To Provide All People, Eat Local, Under Milk Wood, and Soundproof.

Gabrielle Creevy plays cleaner Ria Powell

Gabrielle Creevy, who is also from Wales, stars as Ria Powell in the cast of The Guest. She is probably best known for her role as Bethan Gwyndaf in the BBC series In My Skin, which ran from 2018 to 2021. The young actress won a BAFTA Cymru for her performance in the darkly comic coming-of-age story.

Like actresses such as Vicky McClure, Port Talbot-born Gabrielle doesn’t have the privileged background of the average RADA graduate. She grew up in a council flat with her hairdresser mum. As a teenager, she made her acting debut in three episodes of the S4C drama series Gwaith/Cartref in 2011.

Supporting roles in Casualty, and Father Brown followed. In 2018, the budding actress filmed the pilot of In My Skin, which went on to have two successful series (and is still available to watch on BBC iPlayer).

In 2019, she portrayed Catrin/Katie in the thriller 15 Days opposite David Caves, and Catherine Tyldesley. Two years later, in 2021, Gabrielle starred as Tamsin in the Welsh drama The Pact.

Other big roles include Maggie Wilkin in the 2023 US series Three Women on Starz, and Eleanor in Black Doves. She’s also been in the films Operation Mincemeat, and I’m Not in Love. Suffice to say, she’s on the up, and not even 30 yet!

Julian Lewis Jones portrays Fran’s husband Simon Sharp

Anglesey-born Julian Lewis Jones, 57, stars as Fran’s (largely absent) husband Simon Sharp in the cast of The Guest on BBC One. Julian, who is married to former Dior artistic director Kim Jones, has been a jobbing actor for three decades.

He is best known for playing Tom Beresford in 90s drama Where the Heart Is. Stella fans might also recognise him as Karl in the Ruth Jones comedy. Julian portrayed the character in five series, from 2012 to 2016.

Over his career, Julian has popped up as a supporting actor in dozens of popular TV shows. These include Soldier Soldier, Welsh legal drama The Bench, Holby City, The Bill, and Spooks.

Other notable roles include Graham Simmonds in children’s TV show Jamie Johnson, Richard in Bregus, and Lord Boremund Baratheon in House of the Dragon.

More recently Julian starred as Bayle Domon in several episodes of the now axed Wheel of Time. He also portrayed Mr Norton in Call the Midwife series 13.

Siôn Daniel Young plays Ria’s boyfriend Lee in the cast of The Guest on BBC One

Cardiff-born Siôn Daniel Young, 34, is Ria’s oxygen-stealing boyfriend Lee Mace in the BBC thriller. He began his acting career on stage. His first professional role was in the Welsh-language play Llwyth (Tribe). It was the first play about gay characters written by a queer person on a Welsh-language stage. He went on to appear in War Horse, and the lead role in The Curious Incident of the Dog in the Night-Time.

On TV, Siôn is famous for playing Gareth in drama Keeping Faith, alongside his The Guest co-star Eve Myles. He appeared in the BBC series on and off between 2020 and 2021.

More recently, he played the leading role of Gabriel in Lost Boys & Fairies in 2024. The one-off series of just three episodes followed a gay couple as they adopted a child. 

The Welsh actor is also known for playing Douglas in series 3 of Slow Horses, PC Ivan Barkas in Witness Number 3, and Colin Stagg in Deceit. Other notable roles include George Pendrick in Doc Martin, and Morgan Hopkins in Hinterland.

He’s been in multiple films, too, including Life and Death in the Warehouse, The Left Behind, and Another Me.

The Guest on BBC One cast list: Emun Elliott is Richard Abbott

Scottish actor Emun Elliott, 41, portrays Richard Abbott who works for Fran (and provides some other services on the side). He’s one of the few non-Welsh stars in the cast.

Those of you who recently watched The Gold will recognise Emun for playing real life detective Tony Brightwell. His character made it his mission to bring down the culprits of the Brink’s-Mat robbery. He played the copper in both series of the drama.

Before that he was probably most famous for portraying Kenny Burns in Scottish comedy drama Guilt. Emun played the role in all three series opposite Shetland actor Mark Bonnar – soon to be on The Traitors!

Earlier roles include PC MacGregor in Feel the Force, John Moray in the period drama The Paradise between 2012 and 2013, and Richie in Threesome. He’s also famous for playing Jay Adams in Lip Service, Marillion in Game of Thrones, and Dr Christian King in Paradox.

Most recently, Emun starred as Don Logan in the TV adaptation of Sexy Beast on Paramount+. He’s been in multiple films, too, including Prometheus, Filth, Strawberry Fields, and The King’s Man.

Kimberley Nixon stars as Richard’s wife Eleri Abbott

Bristol-born Kimberley Nixon, 39, plays Eleri Abbott in the thriller, but she’s probably best known for her comedic roles…

She made her TV debut as Sophy Hutton in the period drama Cranford in 2007, before winning the role of Lindsay in the film Angus, Thongs and Perfect Snogging. It’s not just Aaron Taylor-Johnson whose career rose after the 2008 film!

After several years appearing in UK and US films including Wild Child, Easy Virtue and Cherry Bomb, Kimberley began appearing on TV. Her early roles included supporting performances in series such as Poirot, Law & Order: UK, and Midsomer Murders. 

Between 2011 and 2016, she seemed to find her calling in comedy, appearing as Josie Jones in student sitcom Fresh Meat. She went on to win the lead role Sarah in Hebburn. The sitcom, which also starred Chris Ramsey, followed the Pearson family in the town of Hebburn in Tyne and Wear. 

Other notable roles include Harry Bennett-Edwards in Critical, Alison White in New Blood, and Lush in The Tuckers. More recently, Kimberley has portrayed Joan in Shardlake, Jess Noman in Queenie, Beatrice in Peacock, Lettie in My Lady Jane, and Sara Humphries in Welsh legal drama Ar y Ffin.

The actress has spoken openly about her autism and ADHD diagnosis, as well as her battle with OCD.

Clive Russell is Richard’s dad Derek Abbott in the cast of The Guest on BBC One

Winchester-born Clive Russell, 79, stars as Fran’s garden help Derek Abbott, and you’ll definitely recognise the veteran actor from his 65-year career! In fact, the actor – who was actually bought up in Scotland – has been in everything from Game of Thrones, to Hollyoaks!

Soap fans will know him as Phil Nail in Coronation Street, a role he played between 2005 and 2006. And, swapping the cobbles for the Westeros, he played Brynden ‘Blackfish’ Tully in Game of Thrones from 2013 to 2016. The character was a knight and a member of House Tully. 

His very first TV appearance was in the 1960’s children’s show The Shari Lewis Show. Clive was just 15 at the time. After small roles in Boys from the Blackstuff, Brookside, and Spender, he portrayed Caleb Garth in the 1994 period drama Middlemarch. That same year, he played Tucker in the David Morrissey drama Finney. 

Significant early roles included Danny Fitzgerald in Cracker, Archie in Roughnecks, Bonner in Atletico Partick, Mr Vandemar in Neverwhere, and Dr Gordon Urquhart in Rockface.

Between 1998 and 2000, Clive starred as Duggie Strachen in the Brummie sitcom Heartburn Hotel. Comedy seemed to be his natural habitat, and he went on to play Angus O’Connor in Happiness, Gary Turnbull in Auf Wiedersehen, Pet, and Jack Atwell in According to Bex.

Other notable roles include Chief Inspector Fred Abberline in Ripper Street, Willie in Semi-Detached, and Wroth the Tusk Commander in Cursed.

Frankly, Clive has popped up all over the place recently, in the likes of Silent Witness, Dept Q, The Madame Blanc Mysteries, and Code 404. He’s been in dozens of films as well, including King Arthur, Sherlock Holmes, and Thor: The Dark World.

Joseph Ollman stars as Ria’s date Mike

Thirty-two-year-old Joseph Ollman stars as plumber Mike in the cast of The Guest. The writer/director/actor is probably best known for playing Young Iullus in the Roman period drama Domina. He played the role between 2021 and 2023.

He’s also famous for playing Vasant in Knightfall. The 2019 episodes were some of his earliest on screen. Vampire Academy viewers will know him as Jesse Zeklos.

Other notable roles include Craig in Industry, Boris in The Tattooist of Auschwitz, and Guy Carew in Queenie. More recently, Joseph has popped up as David in Spent, and Danny in Beyond Paradise.

Catherine Ayers plays Helen in the cast of The Guest on BBC One

Welsh actress Catherine Ayers, 43, plays Fran’s sister Helen in The Guest. And she’s another familiar face from the cast of Keeping Faith, alongside Eve Myles, and Siôn Daniel Young.

Catherine portrayed Faith’s best friend Lisa Connors in three series of the Welsh drama, which ran from 2017 to 2021.

She’s known for her appearances in multiple Welsh-language dramas, including Darn o Dir, and Cowbois Ac Injans. But perhaps most notably the leading role in Byw Celwydd, aka Living a Lie.

Coronation Street fans will know her for playing Tara Swift in the ITV soap, a role she played between 2019 and 2020. Tara was the Freshco marketing manager, who negotiated a contract deal with Chesney Brown and Gemma Winter for their newborn quads to appear in a new supermarket ad campaign.

Other notable roles include Nicola Carruthers in Casualty, the mum in kid’s TV show My Petsaurus, and Sali in The Light in the Hall. Most recently, Catherine has played Leonie in Henpocalypse!, Mrs Gillian in Who Is Erin Carter?, and Elaine in The Way.

In 2024, she portrayed Nia Emine in the Netflix Harlan Coben thriller Missing You.

Remy Beasley portrays Lowri Evans

Welsh actress Remy Beasley portrays Lowri Evans in the cast of The Guest, but she’s probably best known for playing Beyoncé in the comedy Stella. She starred in the sitcom from 2015 to 2017.

Chepstow-born Remy went on to star as Hari in the mockumentary Tourist Trap. As well as comedy, she’s more than proved her salt in dramas too. She played Georgia in the brilliantly sad The Salisbury Poisonings, before going on to portray DC Victoria Henderson in the hard-hitting The Walk-In.

In 2023, Remy played a young Christine Kappen in the true crime drama Steeltown Murders. Other significant roles include PC Dolan in Black Ops, Meg Hooton in Nightsleeper, and DC Chrissie Bull in Out There. 

The Guest cast on BBC One: Hannah Daniel stars as Mike’s sister Gemma Rice

Cardiff-born Hannah Daniel portrays Mike’s sister Gemma Rice in the cast, who first makes an appearance as Ria’s attacker in episode 2.

Like several of her co-stars, Hannah is best known for her role in Keeping Faith. She played Faith’s colleague and friend Cerys in all three series of the drama, between 2017 and 2021.

The 39-year-old has appeared in multiple Welsh-language TV series, including Gwaith/Cartref, Cyswllt (Lifelines), Creisis, and Bregus. She’s also famous for playing DS Sian Owen in the Wales-set detective drama Hinterland, and the more recent The One That Got Away – both starring Richard Harrington.

In 2018, Hannah portrayed Leah Faulkner in Holby City, before going on to play Izzy in The Light in the Hall, and Sylvia in Tree on a Hill.

EastEnders fans will know her as DCI Morgan, a role she’s played on and off since 2019.

Steffan Rhodri plays Anna’s dad Nick

Swansea-born Steffan Rhodri, 58, portrays Anna’s concerned dad in the cast of The Guest.

The actor is probably best known for portraying bus driver Dave Coaches in the comedy series Gavin & Stacey. Fans will know that the character was in love with Gwen, but sadly for him it wasn’t to be…

Steffan has been on our screens for nearly three decades, having first appeared as Hunky in the film Twin Town opposite Dougray Scott.

He went on to play Gerry Cutler in Doctors, Vic Reed in Love Me, and Judge Gwyn Daniels in Keeping Faith. His recent role in Death Valley was not the first time he’d played a copper either. In 2017, Steffan starred as DI Cleveland in Apple Tree Yard, before he played D.C.S Michael Challes in A Very English Scandal, DC Neil Jones in Manhunt, and DS Alex Blair in Wild Bill.

Other notable roles include King Hywel in The Last Kingdom, Alun in Welsh language drama Yr Amgueddfa, Jeremy in Temple, Perry in In My Skin, and Larry in We Hunt Together (opposite The Guest co-star Eve Myles).

He’s also known for playing Lord Hobert Hightower in House of the Dragon, Phil ‘Bach’ Rees in Steeltown Murders, Christy Pearce in Fifteen-Love, and Admiral George Kenton in Das Boot.

In 2024, Steffan portrayed Geoff in the Michael Sheen-directed civil-rest drama The Way.

He’s been in multiple films, too, including Under Milk Wood, Wonder Woman, Don’t Breathe 2, and Men Up, opposite Unforgotten’s Phaldut Sharma.

Like his Death Valley co-star Timothy Spall, Steffan also appeared in Harry Potter. He played Reg Cattermole in Harry Potter and the Deathly Hallows – Part 1.

Who else stars in the BBC thriller?

Bethan Mary-James stars as Sharla in the BBC One thriller The Guest. She recently popped up in Death Valley, but is best known for playing Juliette in The Collection. 

Darren Evans is Boats in The Guest. He’s previously played Danny Two Hats in My Mad Fat Diary, Ash y Goedwig in The Bastard Executioner, Chef in Galavant, and Constable Shortly in Requiem.

In 2020, Darren starred as Ioan in Gangs of London, before going on to play Spider in Shakespeare & Hathaway: Private Investigators.

Amy Griffiths portrays Jenny. She’s best known for playing Cecily MacNeil in Moonflower Murders. She also starred as Ann Lunn in Endeavour, Rebecca Knightley in The Chelsea Detective, Aspen in Gavin & Stacey, and Meg Roberts in Out There. In 2024, Amy portrayed Grant’s wife Tessa in the film version of The Salt Path. But perhaps the less said about that the better…

Most recently, she played Rhiannon Hopkins in the divisive comedy detective drama Death Valley. 

Meanwhile, Clare Perkins portrays Sharla’s mum Annette in the cast of The Guest. She delivers the fabulously light-hearted (and much needed) line: “I bet this will be a podcast.” Clare is famous for playing Ava Hartman in EastEnders, and Denise Boulter in C5 soap Family Affairs. More recently, Clare portrayed Myrna Okeke in The Outlaws, Carla McLain in Silo, and Kerene Nagashi in The Wheel of Time.

Mali Ann Rees plays paramedic Beth in episode 2. The Welsh actress is known for portraying DC Mog Morgan in The One That Got Away, Llinos in Lost Boys & Fairies, and Lucy Manford in Mammoth. She also starred as Megan in series 2 of The Pact.

Lastly, Amy Beth Hayes stars as DS Alex Flynn. Mr Selfridge fans will know her as Kitty Edwards. She’s also played Sgt Maxine Fox in Sirens, Amy in The Syndicate, and Mrs Diana Wantage in Three Little Birds.

Full cast list of The Guest on BBC One:

Eve Myles stars as Fran Sharp.

Gabrielle Creevy plays Ria Powell.

Julian Lewis Jones portrays Simon Sharp.

Sion Daniel Young is Lee Mace.

Emun Elliott is Richard Abbott.

Kimberley Nixon plays Eleri Abbott.

Clive Russell is Derek Abbott.

Bethan Mary-James stars as Ria’s friend Sharla.

Joseph Ollman portrays Ria’s date Mike Rice.

Catherine Ayers plays Helen.

Remy Beasley plays Lowri Evans.

Hannah Daniel stars as Mike’s sister Gemma Rice.

Steffan Rhodri plays Anna’s dad Nick.

Darren Evans is Lee’s mate Boats.

Clare Perkins portrays Sharla’s mum Annette.

Amy Griffiths plays Ria’s mean cleaning client Jenny.

Mali Ann Rees plays paramedic Beth in episode 2.

Amy Beth Hayes stars as DS Alex Flynn in episode 2.

The Pact actress Heledd Gwynn plays DC Non Martin in episode 2.

Newcomer Lola Waters stars as Penny.

Adult Material star Victoria Donovan plays Gaynor.

Chemistry of Death’s Samuel Creasey plays security guard Gwesyn.

Newcomer Albi Way stars as Ben, the boy in the car in episode 1.

Anfamol actor Aron Cynan is the police officer in episode 2.

Bang’s Jake Burgum stars as barman James in episode 2.

This Town’s Robert Eadon plays Joey in episode 2.

It’s a Sin’s Andria Doherty stars as Lorraine in episode 3.

Craig Gallivan – aka Luke in Stella – plays Marc in episode 3.

Torchwood’s Laura Dalgliesh portrays the manager of Derek’s home.

Newcomer Mason Guthrie portrays storage unit receptionist Geraint in the final episode.

Read more: Inside the upcoming new series Riot Women from Happy Valley creator Sally Wainwright

The Guest will be available on BBC iPlayer from 6am on Monday, September 01, 2025, with an episode airing on BBC One and BBC One Wales each Monday at 9pm.