The Bletchley Circle

Rachael Stirling

Millie

Julie Graham

Jean

Sophie Rundle

Lucy

Anna Maxwell Martin

Susan

Nick Blood

Ben Gladstone

Ed Birch

Harry

Michael Gould

Deputy Commissioner Wainwright

Mark Dexter

Timothy

Elliot Kerley

Sam

Jocelyn Macnab

Claire

Steven Robertson

Crowley

Hattie Morahan

Alice

Faye Marsay

Lizzie

Alexander Perkins

Policeman

Simon Chandler

Solicitor

Paul Ritter

Masters

Tim Pigott-Smith

Colonel

Simon Darwen

Official