This actress has played in the ITV series "The Bletchley Circle" and alongside Keeley Hawes and Jodhi May in a series based on a best-selling debut novel by who?
Rachael Stirling: Rachael Atlanta Stirling (born 30 May 1977) is an English stage, film and television actress. Tipping the Velvet (TV series):  It stars Rachael Stirling, Keeley Hawes, and Jodhi May.
i don't know