Well, that sounded...interesting. I've never listened to any of these before. Sounds like they've got pretty high production values for audio dramas.
Very high. And very well written and performed. Virtually all surviving companion and Doctor actors have at one point or another recorded audio dramas for Big Finish, as well as a number of big-name actors including David Warner, Derek Jacobi, Jenny Agutter, Benedict Cumberpatch (pre-Sherlock), and the guy who played Dr. Bashir on DS9 and Claudia Christian from Babylon 5. Oh, yes, and a fellow named David Tennant who went on to do something or other. Bernard Cribbins, too. At least one of the audios was later adapted for the TV Series (the audio Jubilee formed the basis of the 2005 episode Dalek), and Big Finish was commissioned by BBC Radio to produce several seasons' worth of Eighth Doctor adventures starring Paul McGann and Sheridan Smith. They also produced the audio for the webcast adventures Real Time and Shada for the BBC website in the early 2000s.
Like all series, there are hits and misses, but all the ones I've heard so far I liked and it's the only venue where you'll hear, officially, the Fifth Doctor sharing an adventure with the Seventh, and so on. The only restriction is they're not allowed to use characters from 2005 on, so no Ninth Doctor or Rose or Mickey, etc. But numerous actors from the revival era, including Georgia Moffett, Anna Hope, and I think Noel Clarke, have taken part in BF productions, playing different characters.
Was he meant to do one with Lis Sladen as well? I wonder if that might still get made but with an alternate companion instead?
He said he had signed up to do them but I don't know whether they actually had stories ready.
After she died, I believe Nick Briggs said they'd been in discussions, but that her health problems resulted in a request that the recordings be delayed. So that would say to me the stories were written.
I don't think they'd rewrite the stories for Leela or Romana - that would probably be considered disrespectful to Lis. But Big Finish does publish books, and has published the scripts to Big Finish stories in the past, so they could simply release a volume of these scripts in her honor.
Alex
