Heidi Thomas is an award-winning and BAFTA and EMMY nominated TV and Film screenwriter, producer and playwright and writer of the hit BBC TV show Call the Midwife (2012). Her other work includes Cranford (2007-2009), Upstairs Downstairs (2010-2012), Ballet Shoes (2007) and I Capture the Castle (2003). Heidi has influenced British TV for over a decade and brought stories, period dramas and historical events into our homes in such a captivating and original way that her work has regularly received record breaking viewings.