The author of the "Jeeves and Wooster" novels, P. G. Wodehouse was interviewed for the BBC's Monitor program in 1958. The link below will take you to a seven minute clip from that interview. The wartime broadcasts referred to were ones he made in 1941 in Berlin. They led people to think he was a Nazi sympathiser but after the war this was investigated by MI5 and he was exonerated.
In this video he talks about his life, how he writes, and why he never lets his characters take over.
You can watch the video here: http://www.bbc.co.uk/archive/writers/12201.shtml (There's no sound on the first minute of shots of his home, his books, etc. The video is about 7 and a half minutes long.)
(Would would you like to have Mark Twain as your writing coach? Or how about Anton Chekhov or Jane Austen? You'll find their advice about writing in my newest book, "Your Creative Writing Masterclass," published by Nicholas Brealey and available from Amazon or your other favorite book seller.)