The Day of the Triffids was a 1957 and 1968 BBC

BBC

The British Broadcasting Corporation is a British public service broadcaster. Its headquarters is at Broadcasting House in the City of Westminster, London. It is the largest broadcaster in the world, with about 23,000 staff...

 radio drama

Radio drama

Radio drama is a dramatized, purely acoustic performance, broadcast on radio or published on audio media, such as tape or CD. With no visual component, radio drama depends on dialogue, music and sound effects to help the listener imagine the characters and story...

 adaptation of the science fiction novel

The Day of the Triffids

The Day of the Triffids is a post-apocalyptic novel published in 1951 by the English science fiction author John Wyndham Parkes Lucas Beynon Harris, under the pen-name John Wyndham. Although Wyndham had already published other novels using other pen-name combinations drawn from his lengthy real...

 by John Wyndham

John Wyndham

John Wyndham Parkes Lucas Beynon Harris was an English science fiction writer who usually used the pen name John Wyndham, although he also used other combinations of his names, such as John Beynon and Lucas Parkes...

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Cast and crew

Cast and crew for the 6 episode 1957 version include:

• Bill Masen: Patrick Barr
  Patrick Barr
  Patrick David Barr was a British film and television actor.Born in Akola, India, Patrick Barr went from stage to screen with The Merry Men of Sherwood . He spent the 1930s playing various beneficent authority figures and "reliable friend" types...
  
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• Josella Playton: Monica Grey.
• Susan: Gabrielle Blunt.
• Adapted: Giles Cooper
  Giles Cooper
  Giles Stannus Cooper was an Anglo-Irish playwright and prolific radio dramatist, writing over sixty scripts for BBC radio and television. He was awarded the OBE in 1960 for "Services to Broadcasting"...
  
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• Produced: Peter Watts.

Cast and crew for the 6 episode 1968 version:

• Bill Masen : Gary Watson
  Gary Watson
  Gary Watson is a retired British television actor who started out as a stage actor most notably acting in Friedrich Hebbel's 1962 play Judith at Her Majesty's Theatre in London, England with Sean Connery...
  
  .
• Josella Playton: Barbara Shelley
  Barbara Shelley
  Barbara Shelley is an English film and television actress.She is now retired, but was at her busiest in the late 1950s and 1960s when she became Hammer Horror's number one female star, with The Gorgon , Dracula, Prince of Darkness , Rasputin, the Mad Monk , andQuatermass and the Pit among her...
  
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• Coker: Peter Sallis
  Peter Sallis
  Peter Sallis, OBE is an English actor and entertainer, well-known for his work on British television. Although he was born and brought up in London, his two most notable roles require him to adopt the accents and mannerisms of a Northerner.Sallis is best known for his role as the main character...
  
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• Miss Berr: Marjorie Westbury
  Marjorie Westbury
  Marjorie Westbury was an English radio actress and singer. Her career lasted over fifty years.Born in Oldbury, Worcestershire, she studied Voice at the Royal College of Music in London between 1927 and 1930. During the 1930s she made many radio broadcasts as a soprano from the BBC studios at...
  
  .
• Elspeth Cary/Mary: Freda Dowie
  Freda Dowie
  Freda Dowie is an English actress.Her television credits include: Dixon of Dock Green, Doomwatch, Edna, the Inebriate Woman, Upstairs, Downstairs, The Carnforth Practice, I, Claudius, The Old Curiosity Shop, The Pickwick Papers, Lillie, Oranges Are Not the Only Fruit, Our Friends in the North and...
  
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• Nurse/Lucy: Jan Edwards.
• Mr Masen: Peter Pratt
  Peter Pratt
  Peter Pratt was an English actor and singer who is best remembered for his comic roles in the Gilbert and Sullivan comic operas....
  
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• Young Man: Christopher H. Bidmead
  Christopher H. Bidmead
  Christopher Hamilton Bidmead is a British writer and journalist.Bidmead trained as an actor at the Royal Academy of Dramatic Arts , later playing several roles on stage, television and radio. By the early 1970s he was scriptwriting for Thames Television, producing material for Harriet's Back in...
  
  .
• Dennis: David Brierly
  David Brierly
  David Brierly , also known as David Brierley, was an English actor.Born in Yorkshire, he appeared in various television programmes but is most notable for being the voice of the robot dog K-9 during the 1979–1980 season of the BBC science fiction television series Doctor Who...
  
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• Announcer: Colin Doran.
• Theme music: David Cain
  David Cain (composer)
  David Cain was a composer and technician for the BBC Radiophonic Workshop. He was educated at Imperial College London, where he earned a degree in mathematics. In 1963, he joined the BBC as a studio manager, specialising in radio drama...
  
   of the BBC Radiophonic Workshop
  BBC Radiophonic Workshop
  The BBC Radiophonic Workshop, one of the sound effects units of the BBC, was created in 1958 to produce effects and new music for radio, and was closed in March 1998, although much of its traditional work had already been outsourced by 1995. It was based in the BBC's Maida Vale Studios in Delaware...
  
  .
• Directed: Giles Cooper
  Giles Cooper
  Giles Stannus Cooper was an Anglo-Irish playwright and prolific radio dramatist, writing over sixty scripts for BBC radio and television. He was awarded the OBE in 1960 for "Services to Broadcasting"...
  
  .
• Produced: John Powell.

Foreign adaptation

Radio dramatization in Germany 1968 by Westdeutscher Rundfunk

Westdeutscher Rundfunk

Westdeutscher Rundfunk is a German public-broadcasting institution based in the Federal State of North Rhine-Westphalia with its main office in Cologne. WDR is a constituent member of the consortium of German public-broadcasting institutions, ARD...

 (WDR) Köln (Cologne), translator: Hein Bruehl; re-broadcast as 4-series episode on WDR5 in January 2008.