All Creatures Great and Small might be a warm hug in television form, but it also has some very compelling plot threads that viewers have become highly invested in.

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The characters have been under particular strain recently, with the series currently exploring how difficult life was during the days of the Second World War when families were torn apart and resources scarce.

That was plainly in focus during last year's All Creatures Great and Small Christmas special, when an evacuee came to Darrowby and Mrs Hall pondered life away from cherished friend Gerald.

Expect those storylines to influence events in season 4, among others.

Read on for everything you need to know about the latest season of the drama.

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All Creatures Great and Small season 4 release date: When will it air?

James Herriot (Nicholas Ralph) in All Creatures Great and Small.
James Herriot (Nicholas Ralph) in All Creatures Great and Small. Channel 5

All Creatures Great and Small season 4 arrives on Channel 5 on Thursday 5th October at 9pm.

US fans can watch it on Masterpiece on PBS in early 2024.

There are six shiny new episodes to enjoy – and of course the 2023 Christmas special.

All Creatures Great and Small cast: Who will be back for season 4?

Samuel West as Siegfried Farnon in All Creatures Great and Small.
Samuel West as Siegfried Farnon in All Creatures Great and Small. Helen Williams / Playground Entertainment

The following faces will all be back on our screens:

  • Nicholas Ralph as James Herriot
  • Rachel Shenton as Helen Alderson
  • Samuel West as Siegfried Farnon
  • Anna Madeley as Mrs Audrey Hall
  • Patricia Hodge as Mrs Pumphrey
  • Imogen Clawson as Jenny Alderson
  • Tony Pitts as Richard Alderson
  • Will Thorp as Gerald Hamond
  • Cleo Sylvestre MBE as Anne Chapman

But Callum Woodhouse is absent this season following Tristan's call-up for the war effort.

New cast members include:

  • Neve McIntosh (Shetland) as bookkeeper Miss Harbottle
  • James Anthony-Rose (Slow Horses, Pennyworth) as undergraduate vet student Richard Carmody

There's also Paul Copley (Coronation Street), James Bolam MBE (New Tricks) and Sam Retford (Ackley Bridge).

All Creatures Great and Small season 4 plot: What will happen?

The new episodes take place in 1940, with Churchill taking office and tensions mounting in Europe.

James and Helen are now "happily married", while Tristan is away serving in the Royal Army Veterinary Corps, which prompts James and Siegfried to bring in some extra help to keep things ticking along. Expect some friction following the new additions.

"I can't wait for our audience to see this new season of All Creatures Great and Small," said Masterpiece exec producer Susanne Simpson. "It continues to be full of the warmth and humour that has made it one of our most successful series ever."

Exec producer and CEO of Playground Sir Colin Callender CBE added: "We are thrilled to be back in the glorious Yorkshire Dales for a fourth season of family, community and, of course, animal hijinks. Our wonderful cast and crew are all delighted to be returning to adapt more of James Herriot's joyful and life-affirming stories."

All Creatures Great and Small season 4 trailer: Can I watch it?

Yes! Enjoy the heartwarming teaser below.

All Creatures Great and Small seasons 1 to 3 are available to watch now on My5. If you're looking for something else to watch, visit our TV Guide or take a look at the rest of our Drama coverage.

Like this? You might want to try Outlander. Available now on Lionsgate+.

You can order James Herriot's All Creatures Great and Small from Amazon.

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