Ludwig series 2 is currently in production and BBC One has revealed there’ll be some new famous faces joining the line-up – as well as some other exciting plot news.

The first series landed on BBC One in October 2024. It introduced John ‘Ludwig’ Taylor, a highly intelligent, hermit-like puzzler-setter. His life took a very interesting turn when his twin brother disappeared…

In a bid to find out what happened to him, John posed as his twin James – a DCI in the local police force. Drafted in by his pushy sister-in-law Lucy, John reluctantly assumed his brother’s identity as a detective on Cambridge’s major crimes squad.

And he slowly began to piece together some clues as to his brother’s whereabouts by the cliffhanger Ludwig series 1 ending. So it’s no surprise at all that BBC One recommissioned the detective drama. Here’s everything we know so far about series 2 of Ludwig.

Is there a series 2 of Ludwig?

The BBC has confirmed there WILL be a series 2 of Ludwig – and it’s already started filming. Show creator Mark Brotherhood said: “We’ve all been blown away by the reaction to Ludwig. I’m thrilled we get to come back with a whole new set of puzzles for him to solve in his unique way.”

Lead actor David Mitchell, who plays John in the Ludwig cast, chimed in: “I’m delighted that John Ludwig Taylor has failed to escape the clutches of the Cambridge police and will have to continue to face up to the city’s alarming conundrum-based crime wave.”

He also explained the riddle behind James’ cypher, saying: “Even over the whole first series, that’s not all solved, which is why we hoped for more.”

Our Ludwig review described the BBC One comedy series as “a brilliantly bonkers twist on a very popular format – the murder mystery”. Meanwhile, The Guardian said: “Mitchell is as brilliant as ever at playing the part he was born to play”. Radio Times called it “a real treat”.

Series 2 will continue to follow John in his new role as the consultant for the Cambridgeshire Police.

What is the plot of the returning BBC One series?

Cast and crew are currently filming the much-anticipated series 2 of the BBC One’s acclaimed detective series Ludwig. In the upcoming new episodes, John continues to be “brilliant at solving, puzzles but hopeless at everything else”.

The synopsis tells us: “Picking up from where things were left at the end of series 1, master puzzle-setter John ‘Ludwig’ Taylor is now a Crime Scene Consultant working on ‘impossible’ crimes for the Cambridge Police Authority. No longer having to masquerade as his brother, he’s openly more ‘Ludwig’ than ever – brilliant at solving puzzles but hopeless at everything else.”

However, viewers of series 1 will know that John’s identical twin brother is still missing. And now that John is an official employee of the station, he’s forbidden from using any police resources to look for James or uncover exactly what he was investigating…

Of course, we all know that won’t stop John at all – or Lucy, his sister-in-law and wife of his missing brother.

Who’s in the cast of Ludwig series 2?

David Mitchell returns as the lead actor John Taylor. Of course, he’s best known for being one half of comedy duo Mitchell and Webb with Robert Webb. The pair are famous for appearing in (and writing) Peep Show, and Back. Of course, TV viewers will also know David for playing Will in Upstart Crow, Dr James Vine in Jam & Jerusalem, and for being a team captain on Would I Lie to You?

The always brilliant Anna Maxwell Martin reprises her role as James’ wife Lucy. As well as her comedic roles in Motherland, and Code 404, she’s appeared in Bleak House, Line of Duty, Hollington Drive, and A Good Girl’s Guide to Murder. In 2024, she portrayed real life abuse victim Delia Balmer in the chilling Until I Kill You.

Also returning for series two are Dipo Ola as DCI Russell Carter, Dylan Hughes as Henry Betts-Taylor, Dorothy Atkinson as DCS Carol Shaw, and Karl Pilkington as DI Matt Neville.

Ralph Ineson will also return as Chief Constable Ziegler. He recently played the super-villain Galactus in the Marvel film The Fantastic Four.

Who is new in the line-up?

Joining the cast as series regulars are Mark Bonnar as newspaper editor, Gareth Fisher. The Scottish actor recently appeared in Dept. Q, and will soon star in Celebrity Traitors. He’s also famous for his roles in Guilt, Shetland, Line of Duty, and Unforgotten.

Lastly, Sian Clifford joins the cast as local MP, Joanne Kemper. Of course, Fleabag fans will know her best for playing long-suffering sister Claire.

Completing the cast of newcomers will be Hijack’s Ben Ashenden as DC Ethan Cole, and relative newcomer Rumi Sutton as DC Caitlin Sullivan.

How many episodes is Ludwig series 2? When’s the start date?

Ludwig series 2 will be six episodes of an hour each.

This follows on from series 1, which followed the same format. The upcoming episodes are expected to land on BBC One and BBC iPlayer in 2026.

Series 1 landed as a boxset, as well as streaming week by week.

Read more: Inside ‘enthralling’ new thriller The Rumour on Channel 5 with Rachel Shenton and Joanne Whalley

Ludwig season 1 is available to stream on BBC iPlayer.