The forty-first series of the British medical drama television series Casualty commenced airing in the United Kingdom on BBC One on 25 April 2026. The series focuses on the professional and personal lives of medical and ancillary staff at the emergency department (ED) of the fictional Holby City Hospital. Roxanne Harvey serves as executive producer, while Liza Mellody continued as series producer. The series begins with the mini-series Lethal Legacy and includes the two-part 40th anniversary special.
Production
The series began airing in the United Kingdom on 25 April 2026 on BBC One, a week after the conclusion of the previous series, starting with the 12 part mini-series Lethal Legacy. Series 41 is expected to be the final series under BBC Studios' current production contract, with production companies invited to tender for three subsequent years in May 2025. From episodes broadcast in 2027, Roath Lock Studios will remain as the production base for Casualty, but the series' fictional setting will move from Holby to a hospital in Wales. BBC Studios successfully bid to continue as the production company for the next three series.
Lethal Legacy introduces a storyline in which an unexplained virus places unprecedented strain on the emergency department.
To celebrate the shows 40th anniversary, a special two-part episode aired on 5 September 2026. A teaser trailer released on 12 August 2026 revealed that an explosion takes place at St James' Hospital leaving the Holby team to deal with the fallout. It was filmed across South Wales, Bristol and the underwater stage at Pinewood Studios for a stunt involving an ambulance that crashes into a quarry.
Cast The forty-first series of Casualty features a cast of characters working for the NHS within the emergency department of Holby City Hospital and the Holby Ambulance Service. Sixteen main characters returned from the previous series.
William Beck appears as Dylan Keogh, a consultant in emergency medicine with Di Botcher portraying Jan Jenning, the operational duty manager at Holby Ambulance Service. Anna Chell stars as staff nurse and midwife Jodie Whyte with Milo Clarke playing paramedic Teddy Gowan. Sammy T. Dobson continues as junior doctor Nicole Piper with Melanie Hill portraying senior sister and clinical nurse manager Siobhan McKenzie. Aron Julius continues as resident doctor Matty Linlaker. Elinor Lawless stars as consultant Stevie Nash with Kirsty Mitchell portraying Faith Cadogan, an advanced clinical practitioner (ACP). Neet Mohan appears as Rash Masum, a clinical fellow whilst Sarah Seggari continues as staff nurse Rida Amaan. Olly Rix stars as clinical lead Flynn Byron with Michael Stevenson and Charles Venn as paramedics Iain Dean and Jacob Masters respectively. Barney Walsh plays staff nurse Cameron Mickelthwaite with Naomi Wakszlak as trainee paramedic Indie Jankowski.
The first episode of Lethal Legacy sees Mark Womack introduced as Colonel Jack Bard, an Army officer linked to Flynn's past. Phina Oruche also debuts as Matty's mother and Dylan's former love interest Sarah Linlaker.
The BBC confirmed the return of actors Derek Thompson and George Rainsford as retired senior charge nurse Charlie Fairhead and locum consultant Ethan Hardy for the 40th anniversary special episodes. Kellie Shirley, who played psychiatric liaison nurse Sophia Peters in series 38 and 39 also returned for one episode.
Main characters
William Beck as Dylan Keogh Di Botcher as Jan Jenning Anna Chell as Jodie Whyte Milo Clarke as Teddy Gowan Sammy T. Dobson as Nicole Piper Melanie Hill as Siobhan McKenzie Aron Julius as Matty Linlaker Elinor Lawless as Stevie Nash Kirsty Mitchell as Faith Dean Neet Mohan as Rash Masum Olly Rix as Flynn Byron Sarah Seggari as Rida Amaan Michael Stevenson as Iain Dean Charles Venn as Jacob Masters Naomi Wakszlak as Indie Jankowski Barney Walsh as Cameron Mickelthwaite
Recurring characters
Katie Redford as Laura Beech (episodes 1–11) Mark Womack as Colonel Jack Bard (episodes 1–12) Gwion Morris Jones as Rory Dickson (episodes 1–9) Jamila Wingett as Jessica Priceman (episodes 1–10) Ellie Spooner as Penny Sanders (episodes 5–12) Janet Etuk as Kirsty Osborne (episodes 7–9) Aita Mushuku as Ivy Osborne (episodes 7–9)
Guest characters
Joe Hughes as Joel Beech (episodes 1–2) Eileen O'Brien as Beryl Rice (episodes 1–3) Phina Oruche as Sarah Linlaker (episode 1) Christopher Timothy as Alan Gibson (episodes 1–5) Bethzienna Williams as Emilia Gold (episodes 3–4) Louise A. Willoughby as Rachel Heaney (episodes 4–5) Elisabeth Hopper as Claire Byron (episodes 6 and 14) Rhys ap William as Greg "Rex" Rexford (episodes 7–8) Elsie Antonia Maurice as Poppy Byron (episodes 13–14) Lola Grace Maurice as Millie Byron (episodes 13–14) Kellie Shirley as Sophia Peters (episode 13) Derek Thompson as Charlie Fairhead (episode 14) George Rainsford as Ethan Hardy (episode 14)
Episodes
References