Rachael Stirling
Millie
In 1952, four women who worked at the wartime code-breaking centre, Bletchley Park, reunite to track down a serial killer.
The Bletchley Circle
Millie
Jean
Lucy
Susan
Timothy
Ben Gladstone
Alice
Lizzie
Harry
Deputy Commissioner Wainwright
Sam
Claire
Crowley
Solicitor
Masters
Constable Barry
Sergeant George
Mary
Clerk on Train
Angela
