'Blue Lights' Announces High-Profile Castings for Season 3

It’s rare for the BBC to greenlight more than one season at a time, and certainly not before the current one has aired, which is why the announcement the network was giving Blue Lights a third and fourth season before Season 2 arrived in early 2024 was a bit of a shock. However, with BritBox joining the show as co-producer starting with the second season didn’t hurt, nor does the series’ viewership ratings or critical acclaim. Moreover, as the cast turnover continues, the production is taking advantage of the show’s reputation by adding two high-profile character actors to the roster.

As production on Season 3 started in early February 2025, BritBox and the BBC were proud to announce that Michael Smiley, who has been in everything from Luther to Obituary to Bad Sisters, would join the cast for the new season. He’s not the only addition Americans will recognize either. Cathy Tyson, who was fantastic in Apple TV+’s Criminal Record and recently became a recognizable face due to starring in HBO’s Dune: Prophecy, will also be a Season 3 regular.

“It is a delight to watch Cathy and Michael seamlessly join our talented cast,” the BBC’s Nick Lambon said as part of the announcement. “The arrival of both characters marks the start of the most ambitious Blue Lights series yet, which will leave fans questioning everything they think they know about the response officers they have come to love…”