Silent Witness series 29: Cast of Creekwood Part 1 and 2 includes Call the Midwife's Megan Cusack and The Bill's Cat Simmons
It's a particularly chilling tale this week...
Silent Witness series 29 continues with Creekwood Part 1 and 2 – aka episodes 3 and 4 – and it’s another gripping story made real by a great cast of guest stars.
This week, an elderly man is found dead with a screwdriver impaled through his eye socket. As The Bowman team start to investigate the grisly murder, they find themselves navigating the mental health system of both the past and the present.
The investigating officer, DI Ashley Moss, quickly gets a lead when she follows two homeless people who may have seen what happened. The post mortem offers up further clues and, as more evidence is gathered, The Bowman’s investigation takes a surprising turn…
Here’s who plays who in the guest cast of Silent Witness episodes 3 and 4, entitled Creekwood Part 1 and 2.
Silent Witness series 29 Creekwood cast: Lydia Wilson plays DI Ashley Moss
London-born actress Lydia Wilson, 41, guest stars as DI Ashley Moss in the cast of Silent Witness episodes 3 and 4. In Creekwood Park 1 and 2, she investigates the chilling lobotomy of a murder victim.
The star of TV and film is perhaps best known for playing Mimi Morton in period drama Ripper Street, a role she played in series 3 and series 5 between 2014 and 2016.
She went on to play the lead character Matilda Gray in Requiem in 2018, and Eve in Anna Paquin drama Flack. More recently, Lydia has portrayed Sara Thompson in ecological thriller The Swarm, June Holmes in Funny Woman, and Sonja in the thriller Nine Bodies in a Mexican Morgue.
She made her film debut in the 2010 Never Let Me Go, and has since appeared in multiple movies including The Making of a Lady, About Time, and Star Trek Beyond.
Cat Simmons stars as Adele
Lancashire-born actress Cat Simmons, 45, stars as homeless Adele in the latest episode of Silent Witness series 29.
The Bill viewers will know her best as DC Kezia Walker, a role she played between 2006 and 2009 in four seasons of the ITV cop show.
She also had a major role in the Jill Halfpenny Channel 5 crime drama The Holiday in 2021. She played prime suspect Izzy who ended up proven innocent, but died in the process…
The TV actress recently portrayed Charlotte Seward in Grace. Charlotte was secretly following her philandering businessman hubbie Toby Steward in the John Simms detective drama. Also in 2025, Cat starred in the ITV1 Martin Clunes drama Out There, and played Grace Chapman in All Creatures Great and Small.
Other notable roles include Emma in Ordinary Lies, Jean Crick in Patience, Cassie in Mary & George, and Garwyn in Halo.
Silent Witness series 29 Creekwood cast: Mark Stobbart plays Danny
County Durham-born actor Mark Stobbart, 47, stars as Adele’s partner Danny, who is also homeless. He is probably most famous for playing Peter Sutcliffe in the 2023 ITV drama The Long Shadow.
Having started his career in 2002 playing Rod Osborne in Auf Wiedersehen, Pet, he went on to appear in 55 Degrees North between 2004 and 2005. He portrayed PC Martin Clark in the Don Gilet cop drama.
Line of Duty fans might recognise Mark for playing DS Neil Twyler in series 4 of the police drama in 2017. Other notable roles include Lee in The Silence, Bejan in Utopia, and Jay Connock in Vera.
More recently, he’s appeared in The Hunt for Raoul Moat, House of the Dragon, Smoggie Queens, and The Hack.
Megan Cusack stars as Niamh
Actress Megan Cusack stars as Niamh in Silent Witness series 29. Call the Midwife fans will know Megan for playing Nurse Nancy Corrigan in the BBC medical drama. She joined the cast in 2021 as a pupil midwife, before becoming one of the most beloved members of Poplar’s Nonnatus House.
However, the fan favourite left the show in series 14 this year, and isn’t appearing in the current series 15. The last series bid a sad farewell to Nancy in quite a dramatic exit. At the very end of series 14, we saw Nancy tie the knot with Roger. However, their big day ended up being more eventful than they could ever have anticipated when Nancy went into labour. She ended up giving birth in the back of an ambulance with Nurse Crane on hand to help.
Megan Cusack, who played Nancy, subsequently confirmed that she had left the show after four years. She revealed that her character’s dramatic wedding and labour episode were her last.
The Cork-born actress, 29, recently joined the cast of Cooper & Fry episode 2 as Gemma Ward. It was her most significant role to date after leaving Call the Midwife. She has also appeared in Say Nothing, The Cherry Orchard, Doctors, and The Borgias.
Nichola Burley plays Lydia
Leeds actress Nichola Burley, 39, stars as Lydia in Silent Witness episodes Creekwood. She’s been on our screens for two decades, and started her career playing Donna in Goldplated, and Cathy McAleer in Drop Dead Gorgeous.
Subsequent TV appearances included shows such as The Fixer, Candy Cabs, The Syndicate, and Southcliffe, and Death Comes to Pemberley.
In 2021, she played Sophie in twisty Netflix thriller Behind Her Eyes, before winning the role of Kenneth Noye’s wife Brenda in The Gold. More recently, Nichola has starred as Gemma Brandice in ITV police drama Protection, Sophie Brodenham in Virdee, and Siobhan in Dreamers.
Alan Williams portrays Terrence
Veteran actor and playwright Alan Williams stars as Terrence in Silent Witness episodes 3 and 4 of series 29. The Manchester-born star, 71, has a TV and film career spanning more than 40 years.
He is perhaps most famous for playing Granddad in the Lesley Sharp drama Starlings, a role he played between 2012 and 2013.
Other notable roles include George in Life Begins, Martin in Always and Everyone, Acerbo in Rome, Frank Hodge in Luther, and KGB Chairman Charkov in the incredible Chernobyl. He’s also appeared in Silent Witness before, having played Eddie Stokes in 2008 episodes The Lost Child.
More recently, Alan has starred as Maurice Craddle in The Long Call, Blind ‘Arry in Father Brown, and Derek in Beyond Paradise.
Who else guest stars in he cast of Silent Witness series 29 Creekwood?
Yasmin Davies stars as Erin. She is best known for playing Molly in Suranne Jones drama Maryland in 2023, which was her very first TV role. She’s since popped up in The Tower, The Gathering, Hollyoaks and Hollyoaks Later, and G’wed.
Joe Barber stars as Ryan. He made his first TV appearance playing Jordan in the Jason Watkins Channel 5 thriller Coma. He has subsequently portrayed Simon Whelplay in Shardlake, Quint in Adolescence, Dunstan Fisher in Art Detectives, Clem in Down Cemetery Road.
Cardiff-born actress Rachel Atkins stars as Barbara. She’s been on our screens for 30 years, and is most famous for being a voiceover artist. Talking of which, The Archers fans might recognise her voice as Vicky Tucker.
Actor Chris Gordon stars as Vincent. He’s best known for playing a very different character – the Duke of Edinburgh’s valet in The Crown! He’s also played Richie Campbell in Bang, Ross West in Casualty, and Rafe Harcourt in Hollyoaks.
Joseph Long plays Gino in the cast of Silent Witness’ Creekwood. A jobbing actor of more than 4o years, he’s portrayed Mr Hendry in EastEnders, Carlos in Auf Wiedersehen, Pet, Roger in The Mysti Show, and Abd Aziz in Tyrant. He’s most famous for playing Luigi in Ashes to Ashes, a role he played between 2008 and 2010. The actor has actually been in Silent Witness before. In 2002, he played Andy Lucas in series 6’s Kith and Kill. He popped up as Costas in the series 15 episode And Then I Fell in Love Part 1.
Full guest cast list for Silent Witness series 29 Creekwood:
Lydia Wilson plays DI Ashley Moss.
Megan Cusack guest stars as Niamh.
Cat Simmons stars as Adele.
Mark Stobbart plays Danny.
Nichola Burley plays Lydia.
Alan Williams is Terrence.
Yasmin Davies is Erin.
Joe Barber stars as Ryan.
Rachel Atkins stars as Barbara.
Chris Gordon stars as Vincent.
Joseph Long plays Gino.
Dalgliesh’s Will Close portrays a young Dr Dankford.
Doctors’ Lorna Nickson-Brown plays Rose.
Grass star David Webber is Tommo.
Newcomer Alexander Joseph portrays a young Tommo.
Voiceover artist Rasmus Hardiker plays the estate agent.
Newcomer Seisha Butler is the chemist.
