Call the Midwife star Olly Rix has swapped Poplar for Holby City, joining Casualty as newcomer Flynn Byron after leaving the period drama.

The complex character has been well-received by fans, particularly his intricate relationship with father-in-law Russell Whitelaw (Robert Bathurst)

With only two episodes left of the miniseries Casualty: Internal Affairs, viewers are eager to see what lies ahead for Flynn.

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Discussing his time on the BBC show, it seems there’s positive news for Casualty enthusiasts. He revealed to Hello!: “We’ve been filming for a year, and you’ve only had ten episodes. We have 40 something in the bank now. So, Flynn’s not going anywhere.”

Call the Midwife star confirms future on long-running BBC series (Image: BBC)

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The 40-year-old actor shared his experience working on the medical drama, admitting it’s been intense.

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Olly added:” It’s been overwhelmingly busy. It’s all-consuming. The set itself is quite extraordinary and such an immersive experience.

“Those two factors weave together perfectly. Really, I do feel as though I’ve spent the past year legitimately pretending to be a doctor, doing long shifts and finishing with sore feet and an aching back. It’s been quite the journey.”

However, he commended the BBC show for its approach to challenging themes and topics, acknowledging that Casualty doesn’t avoid difficult questions, reports the Express.

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BBC viewers have enjoyed the newcomer joining the medical drama(Image: BBC)

Recently on the show, fans watched as Flynn grappled with a distressing revelation about his father-in-law.

The plot thickened when it came to light that he had sexually assaulted Rida Amaan (Sarah Seggari), leaving Flynn in a quandary over what to do next.

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Yet, Flynn finds himself cornered as his father-in-law holds his infidelity over him, threatening to spill the beans if Flynn decides to speak up about the assault.

Flynn faces a moral dilemma regarding his father-in-law in upcoming episodes(Image: BBC)

Speaking to The Mirror, Olly explained: “They’re not actively at war, they’re not fighting. He’s saying, providing you don’t do anything, I won’t do anything.

“Flynn has to choose to step into that fire and say ‘I’m going to risk it all, or he won’t.”