Janet trained at the Royal Central School of Speech and Drama. She has appeared in theatres up and down the country and on TV in everything from Dr. Who and The Sweeney to Jigsaw. She presented Blue Peter for four years in the eighties, and since leaving has worked as an actress, presenter, broadcaster and writer. She is a regular contributor to radio and TV, newspapers and magazines.
She is the author of The Butcher's Hook, longlisted for the Desmond Elliot Prize, and How It Was. She lives in London and has three children and five grandchildren.