Frequently Asked Questions About The Bletchley Circle
Direct, verified answers to the most common queries regarding episodes, renewals, watch order, and streaming availability.
How many seasons and episodes does The Bletchley Circle have?
The Bletchley Circle has 2 seasons and 7 total episodes, spanning from its premiere on September 6, 2012 to January 27, 2014.
Is The Bletchley Circle renewed, ended, or canceled?
The Bletchley Circle has concluded its run and is officially ended.
How long does it take to binge watch The Bletchley Circle?
It takes 5h 15m (315 minutes) to watch the complete run of The Bletchley Circle. At a standard pace of 2 hours per day, you will finish the entire series in approximately 3 days. Yes! At 5.3 hours total, you can comfortably finish this in a single weekend with about 2.7 hours per day.
What is the highest-rated episode of The Bletchley Circle?
The highest-rated episode is Season 1, Episode 2 ("Cracking a Killer's Code (2)"), which holds an outstanding rating of 7.8/10 based on 13 audience ratings.
Where can you stream or watch The Bletchley Circle?
The Bletchley Circle is available for streaming on Amazon Prime Video, Peacock Premium, Britbox Apple TV channel, BritBox, BritBox Amazon Channel, Amazon Prime Video with Ads, Peacock Premium Plus, Howdy Amazon Channel. Availability may vary by regional territory, subscription tier, and digital purchase availability.
What is the official age rating for The Bletchley Circle?
The Bletchley Circle has an official content rating of TV-14.
Who are the lead actors in The Bletchley Circle?
The primary ensemble cast includes Rachael Stirling as Millie (age 49), Julie Graham as Jean (age 61), Sophie Rundle as Lucy (age 38), Anna Maxwell Martin as Susan (age 49).
Ensemble Cast & Current Ages
Lead cast members, their character identities, and current ages calculated from official biographical records:
| Actor | Character | Current Age |
|---|---|---|
| Rachael Stirling | Millie | 49 |
| Julie Graham | Jean | 61 |
| Sophie Rundle | Lucy | 38 |
| Anna Maxwell Martin | Susan | 49 |
| Mark Dexter | Timothy | 53 |
| Nick Blood | Ben Gladstone | 44 |
| Hattie Morahan | Alice | 47 |
| Faye Marsay | Lizzie | 39 |
Editorial Verification & Sources
All production facts, air dates, cast credentials, and streaming metadata for The Bletchley Circle are compiled from official broadcaster archives, TMDB, and Wikidata records. Last verified on October 5, 2026.