Y Sŵn 2023
In 1979, after Margaret Thatcher’s newly‑elected government reneges on its pledge to launch a Welsh‑language television service, protests erupt across Wales. Gwynfor Evans, a determined activist, threatens a hunger strike, vowing to die unless the promise is fulfilled. The film retells this vivid, pivotal episode of modern Welsh history.
Does Y Sŵn have end credit scenes?
No!
Y Sŵn does not have end credit scenes. You can leave when the credits roll.
Meet the Full Cast and Actors of Y Sŵn
Explore the complete cast of Y Sŵn, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.
Mark Lewis Jones
William Whitelaw
Annes Elwy
Meinir Ffransis
Richard Elfyn
Goronwy Daniels
Rhodri Meilir
Nicholas Edwards
Steffan Cennydd
Denis
Lowri Izzard
Manon
Dyfan Dwyfor
Dafydd Wigley
Lisa Jên Brown
Phyllis Kinney
Carys Eleri
Nerys
Claire Cage
Ymgynghorydd i'r Weinidog
Sharon Morgan
Marjorie
Nia Gwynne
Lady Littler
Nicola Reynolds
Lady Plowden
Steven Elliot
Lord Harlech
Eiry Thomas
Rhiannon Evans
Sian Reese-Williams
Margaret Thatcher
Rohit Gokani
Gandhi
Dewi Rhys Williams
G.O. Williams
Dafydd Emyr
Yr Arglwydd Cledwyn
Mensah Bediako
Martin Luther King
Arwel Gruffydd
Wyn Roberts
Mali O'Donnell
Ffion
Rhodri Evan
Gwynfor Evans
Lily Beau
Ceri Samuel
Osian Davies
Rupert Edwards
Sion Eifion
Dafydd Elis-Thomas
Lisa Victoria
Jennie Eirian
Geraint Wyn Tod
Emyr Jenkins
Gwion Aled Williams
Fred Ffransis
Llion Williams
Gwilym
External Links and Streaming Options
Discover where to watch Y Sŵn online, including streaming platforms, rental options, and official sources. Compare reviews, ratings, and in-depth movie information across sites like IMDb, TMDb or Letterboxd.
Coming soon on iOS and Android
The Plot Explained Mobile App
From blockbusters to hidden gems — dive into movie stories anytime, anywhere. Save your favorites, discover plots faster, and never miss a twist again.
Sign up to be the first to know when we launch. Your email stays private — always.
Explore the mobile appWatch Trailers, Clips & Behind-the-Scenes for Y Sŵn
Watch official trailers, exclusive clips, cast interviews, and behind-the-scenes footage from Y Sŵn. Dive deeper into the making of the film, its standout moments, and key production insights.
Unlock the World of Movies with Our Comprehensive Wiki
Dive into our Movie Wiki for in-depth film encyclopedia entries, including cast biographies, production trivia, plot synopses, behind-the-scenes facts, and thematic analyses. Whether you’re researching iconic directors, exploring genre histories, or discovering hidden easter eggs, our expertly curated movie database has everything you need to fuel your cinematic passion.
Quick Links: Summary, Cast, Ratings, More
What's After the Movie?
Not sure whether to stay after the credits? Find out!
Check out our other apps:
SAT Sphere
Build confidence for the Digital SAT.
Mori Atlas
Discover wild places worth protecting.
Luntero
Search smarter for a home in Amsterdam.
Plot Explained
Unravel movie endings and hidden clues.
Pokechamp
Dive into Pokémon data and battle logic.
Driving Theory
Get ready for your European theory test.
Movie Dust
Plan your next cinema trip with ease.
Musemap
Find art and culture as you travel.
Selkobase
Compare credentials before committing.
Local Manual
Turn an unfamiliar country into practical next steps.
Lernavi
Compare school systems before your next move.
GymRoam
Find a workout stop wherever your plans take you.
Explore Our Movie Platform
New Movie Releases (2026)
Famous Movie Actors
Top Film Production Studios
Movie Plot Summaries & Endings
Major Movie Awards & Winners
Best Concert Films & Music Documentaries
Movie Collections and Curated Lists
© 2026 What's After the Movie. All rights reserved.
Privacy Policy