“The Bletchley Circle: San Francisco” will be on BritBox – and ITV in the U.K. – later this year. It will follow two of the original lead characters, Millie (Rachel Stirling) and Jean (Julie Graham), as they travel to 1956 America and join forces with two U.S. codebreakers to tackle a string of murder cases.

• Gigi Boyd
• Crystal Balint
• Rachael Stirling
• Julie Graham
• The Bletchley Circle San Francisco - Season 1