Blue Lights series 4 first look teaser trailer released

A new series is coming to BBC iPlayer and BBC One this autumn

Published: 01:00 pm, 1 July 2026

The BBC has released a first-look teaser for the fourth series of BAFTA and RTS award-winning Blue Lights, which will be coming to BBC iPlayer and BBC One this autumn.

In this exclusive clip, Constable Shane Bradley (Frank Blake) stops an elderly driver, David (Trevor Gill) and his passenger, Imelda (Rosamund Monteith), in a bid to improve Blackthorn’s crime statistics.

The forthcoming series stars Siân Brooke (Sherlock, Trying) as Grace, Martin McCann (Trespasses, Hostage) as Stevie, Katherine Devlin (The Day Of The Jackal, Vikings) as Annie, Nathan Braniff (Blue Lights S1-4) as Tommy and Frank Blake (Say Nothing, Normal People) as Shane. Richard Dormer (The Day of the Jackal, Game of Thrones, Fortitude), who played Gerry Cliff in series one, returns alongside Hannah McClean (Malpractice) as solicitor, Jen Robinson and Jonathan Harden (The Rainmaker, Time) as disgraced former Inspector, Jonty, in an episode that will answer important questions from the past.

Produced by Two Cities Television and co-produced by Gallagher Films for BBC iPlayer and BBC One, Blue Lights also stars Joanne Crawford (Outlander: Blood of my Blood) as Helen McNally, Andi Osho (The Sandman, I May Destroy You) as Sandra, Abigail McGibbon, (Abigail McGibbon, (Sadie, Ballywalter) as Tina, Dearbháile McKinney (Blue Lights S1-4) as Aisling, Neil Keery (How To Get To Heaven From Belfast) as McCloskey and Andrea Irvine (Call The Midwife) as Nicola. The cast also sees the return of Cathy Tyson (Dune: Prophecy, Black Ops), who plays private members club owner, Dana Morgan and Michael Smiley (Bad Sisters, Censor) as C3 intelligence officer Paul ‘Colly’ Collins.

The 6 x 60’ series, for BBC iPlayer and BBC One, is co-created, written and executive produced by Declan Lawn and Adam Patterson, co-created and produced by Stephen Wright, Two Cities Television and co-created and co-produced by Louise Gallagher, Gallagher Films , with support from Northern Ireland Screen. The producer for series four is Brendan Mullin (In Flight, Wreck S2), episodes 1-3 are directed by Angela Griffin (Blue Lights S3, Waterloo Road) and episodes 4-6 are directed by Sam O’Mahony (The Wise Guy).

The series was commissioned by Lindsay Salt, Director of BBC Drama. The executive producers are Stephen Wright (Two Cities Television), Louise Gallagher (Gallagher Films), Declan Lawn and Adam Patterson and the executive producer for the BBC is Nick Lambon.

BBC Studios is handling global sales for series four, in addition to all previous series. Blue Lights has been sold in over 160 territories. Two Cities Television is part of the STV Studios family of production labels.

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