Casualty 2025 new cast and departing characters
The revolving doors of Holby City Hospital never stop turning and 2025 is another busy year for cast and character entrances and exits.
Here’s our guide to all the exciting new arrivals, shocking exits and surprise appearances taking place in BBC1's medical drama in the new year.
We’ve divided this Casualty 2025 Who’s Who into five parts: New Arrivals, Leavers, Returning, Special Guests and Rumoured.
Happy reading fellow Casualty fans!
Please note: This is a live document and will be updated regularly. For clarity this has been written in chronological order, so please scroll down in each section for the newest updates.
Casualty 2025 — a complete guide to the characters and cast of BBC1’s medical drama
Casualty 2025 — New Arrivals
Indie Jankowski — played by Naomi Wakszlak
The first new arrival of 2025 technically made her debut in 2024, but as was the final episode of the year we feel it’s fair enough to include her here.
From the off-set Indie Jankowski (Naomi Wakszlak) makes a strong impression on paramedic boss Jan Jenning (Di Botcher) - both good and bad.
Over time it's revealed that Indie's father Samuel (Martin Hancock) is in jail. On his release he is so deeply in debt that he robs Jan's house on the night of Faith Cadogan and Iain Dean's wedding. Even more shocking, Indie covers for her father initially!
Indie Jankowski is played by Naomi Wakszlak, whose other credits include Back, Above the Clouds, Pennyworth and Doctors.
First appearance: Off Duty, Saturday 28 December 2024.
Current status: Freshly graduated and looking for her a permanent position.
Sean Redmond — played by Seth Somers
Surgeon Sean Redmond isn’t backwards when it comes to stating what he wants - something that doctor Rash Masum learns from the get-go when he and the newcomer literally collide in Holby ED. With neither of them looking where they’re going, Sean (Seth Somers) demands Rash (Neet Mohan) replace his broken phone. Then things get even more awkward when Rash’s cousin doctor Tariq Hussein (Manpret Bachu) reveals Sean is his new housemate.
Sean Redmond is played by Seth Somers whose other credits include We Were the Lucky Ones and A Thousand Blows.
First appearance: On Trial, Saturday 4 January 2025.
Final appearance: Although it's not been confirmed yet if he's left the show, Sean was last seen in the final episode of the Internal Affairs 12-parter Non-Disclosure on Saturday 7 June 2025 when on-off girlfriend Rida Amaan (Sarah Seggari) broke her silence on abuse at the hospital.
Flynn Byron — played by Olly Rix
After Olly Rix was confirmed as Holby City Hospital's new ED Clinical Lead he made his Casualty debut in a new boxset called Internal Affairs airing in March 2025. He's playing medic Flynn Byron, who is married to surgeon Russell Whitelaw's daughter Claire. Trouble on the home front threatens to spill over into Flynn's professional life when Russell discovers his son-in-law has been cheating on his daughter!
Olly Rix is best known for his roles in Agatha Raisin, Our Girl and, of course, Call The Midwife where he played Trixie Franklin's (Helen George) husband, Matthew Aylward before the character moved to New York at the end of season 13.
First appearance: Everything Changes on Saturday 15 March 2025.
Current status: Flynn has split from his wife Claire and is still the clinical lead of the ED, where he's in danger of gaining a reputation as a womaniser in the wake of his marriage break up...
Casualty 2025 — Leavers
Richard 'Rich' Walker - played by Michael Keogh
Firefighter Rich Walker became Casualty's first 2025 casualty when he passed away after being injured in an explosion at a plane crash. And, sadly, the heroic first responder has unintentionally left a trail of destruction in his wake as both Siobhan McKenzie, his wife of 25-years, and Stevie Nash, his lover, mourn his passing.
Rich was played by Michael Keogh, who has also starred in Cutting It, Coronation Street, Waterloo Road, Emmerdale, Doctors and Peaky Blinders.
First Casualty appearance: Sinking Ships - Day 1 (15 June 2024).
Final Casualty appearance: Brace, Brace, Brace (22 February 2025).
Interview:
Michael Keogh on Rich, Siobhan, Stevie's love triangle
Russell Whitelaw — played by Robert Bathurst
Robert Bathurst joined the staff at Holby Hospital as conflicted surgeon Russell Whitelaw in a boxset called Internal Affairs in March 2025.
Best known for his roles in Downton Abbey, Coldfeet and Doctor Who, Robert stars as surgeon Russell Whitelaw, who is described as: “A brilliant, but controversial surgeon."
Speaking about his new role Robert says: "They built an operating theatre especially for this block of stories so all of us, actors and crew, were on a voyage of discovery."
First appearance: Unearthed (1 March 2025).
Final appearance: Non-Disclosure on Saturday 7 June 2025 when Rida Amaan (Sarah Seggari) broke her silence on his abuse among the surgical team. Russell left Holby with his reputation in tatters and and Robert has confirmed he won't be back.
Check out our exit interview with Robert
Casualty 2025 — Returning
There has been no confirmation of any previous Casualty characters making a return to the show for 2025. However, we do like to speculate. See the ‘Rumoured’ section below for our unfounded musings…
Casualty 2025 — Special Guests
Jack Wilkinson as father-to-be Aaron Bayliss
Jack Wilkinson joins the series in January 2025 as Aaron Bayliss, who crashes into doctor Dylan Keogh and nurse Jodie Whyte’s world during a life and death tragedy.
Aaron is taking his heavily pregnant wife Thea to hospital when his car careers into the restaurant where Dylan (William Beck) and Jodie (Anna Chell) are having dinner. The medics are faced with the choice of whether or not to perform emergency surgery in less than ideal conditions at the scene, and afterwards Aaron has questions…
Jack Wilkinson’s credits include Holby City, The Doll Maker, This is Going to Hurt and Biff & Chip.
First appearance: On Trial, Saturday 4 January 2025.
Ravin J. Ganatra as Kareem Hussein
Ravin J. Ganatra makes his first appearance as Tariq Hussein’s father Kareem when he’s brought into Holby ED after a fall.
Kareem makes a point in asking for his nephew Rash (Neet Mohan) but not Tariq (Manpreet Bachu) and orders his nephew to keep a serious medical secret from his son.
Ravin J. Ganatra’s credits include Prime Suspect, Coronation Street, Doctor Who and This England. He also had a previous guest role on Casualty in 1996 episode Waterwings.
First appearance as Kareem Hussein: On Trial, Saturday 4 January 2025.
Casualty 2025 — Rumoured
Olly Rix
There have been rumours since last Summer that Call the Midwife star Olly Rix has been seen filming on Casualty’s Cardiff-based set. With senior nurse Siobhan McKenzie’s tenure as Acting Clinical Lead coming to a close in 2025, could Olly be a perfect fit for the role of new Clinical Lead?
As of February 10 2025 Olly has been confirmed as new Casualty lead Byron Flynn. Read about his appointment and introductory storylines here.
Elle Gardner — played by Jaye Griffiths
Total supposition on our part here, but with a major father and son storyline brewing between paramedic Jacob Masters (Charles Venn) and his offspring Blake Gardner (David Ajayi, Supacell, EastEnders), we have everything crossed that Blake’s mother Elle Gardner (originally played by Jaye Griffiths from 2016 until 2019) will make a surprise return. Double-joy if she’s followed by Jacob's ex, Connie Beauchamp (Amanda Mealing).
Max Cristie — played by Nigel Harman
Again, pure speculation, but as the character still gets mentioned in the show, it would be remiss not to indulge ourselves here.
In the 2023 episode Crash Landing maverick medic Max Cristie came in like a whirlwind and created delicious chaos for a year, before departing Holby with his daughter Jodie Whyte’s kidney in 2024’s Easy Way Out.
In Off Duty, the opening episode of this year’s first boxset Public Property, a phonecall from Max to pal Dylan Keogh (William Beck) about Jodie (Anna Chell) set off a chain of events with far-reaching consequences for both characters. The chances of Max turning up to help clear matters up is slim to nothing, but that won’t stop us entertaining the possibility!
More updates coming soon...
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