Casualty: Olly Rix Joins as Flynn Byron in Steamy New Role for ‘Internal Affairs’ Miniseries
From Call the Midwife to Holby City
Actor Olly Rix, best known for his role as Matthew Aylward on Call the Midwife, is set to make a dramatic entrance on Casualty. He takes on the role of Clinical Lead Flynn Byron in the upcoming Internal Affairs miniseries, beginning in March.
Fans can expect a complex, layered character: Flynn is a former military medic with a traumatic backstory, arriving in Holby with a fierce determination to make a difference. Olly described the role as “dynamic” and said Flynn’s entry brings both complexity and excitement to the show.
A Character With Depth and Purpose
Executive Producer Roxanne Harvey said Flynn’s storyline will explore the emotional toll of NHS work, the cost of tough decisions, and the potential for redemption. His presence promises to add intensity and new dynamics within the Emergency Department.
The series also introduces acclaimed actor Robert Bathurst as guest star Russell Whitelaw, a highly skilled and authoritative surgeon. Robert praised the realism of the set and the quality of the production, noting that advisers ensured the operating theatre scenes were authentic.
Guest Stars and Flashback Episodes
This week, Laurie Brett will guest star as Marie Mayhew, a stern midwife, in a flashback special exploring Jodie Whyte’s experiences as a student in January 2020 at Brockwell Hospital. Fans have already expressed excitement about her appearance, with social media comments praising the authenticity and visual impact of the costume and setting.
What to Expect
Flynn Byron’s arrival is set to shake up Holby City’s ED with emotional storylines, professional tension, and unexpected personal drama. With high-profile guest stars and a new miniseries arc, viewers can anticipate gripping, character-driven medical storytelling.
Catch the new episodes of Casualty on BBC One and stream first on BBC iPlayer.