Jackson Lamb
Slough House: head of the desk and still directing its unofficial responses.
Personnel board · end of Series 5
Who is still on the file?
A spoiler-controlled snapshot of the desk, the Park and the people operating outside both.
Major spoilers through Series 5: switch on “Hide spoilers” before reading if you are behind. Status describes the last released episode, not an actor’s contract or the unreleased outcome of Series 6.
- Snapshot
- End of Series 5
- People tracked
- 12
- Appearance method
- Indexed focus
- Reviewed
- 15 September 2026
Current disposition
Personnel status board
“Active” means active in the story’s last known position; it is not an official MI5 employment record.
River Cartwright
Slough House: field agent carrying new family and care responsibilities.
Diana Taverner
Regent’s Park: senior operator whose authority depends on leverage as much as title.
Catherine Standish
Outside the ordinary desk role: still tied to Lamb and the team through loyalty and history.
Louisa Guy
Slough House: experienced field agent and one of the desk’s most dependable operators.
Shirley Dander
Slough House: technically capable field agent working through major personal loss.
Marcus Longridge
Former Slough House agent: killed during the Series 4 operation.
Roddy Ho
Slough House: technical specialist whose private vulnerability became operational in Series 5.
Sid Baker
Status unresolved on screen after Series 1: Apple has officially confirmed her Series 6 return; no outcome is assumed here.
David Cartwright
Former Service figure: declining memory and old decisions continue to shape River’s story.
Frank Harkness
Private operator: an adversary outside the ordinary Service structure; later status is left to released episodes.
Emma Flyte
The Dogs: senior internal-security presence whose judgement is tested against Park politics.
Episode cross-reference
First and latest indexed focus
This table reflects the principal-character tags in this site’s episode files. It is deliberately not presented as a complete screen-credit count.
| Character | First indexed focus | Latest indexed focus | Files tagged |
|---|---|---|---|
| Jackson Lamb | S1E1 · Failure’s Contagious | S5E6 · Scars | 24 |
| River Cartwright | S1E1 · Failure’s Contagious | S4E6 · Hello Goodbye | 21 |
| Diana Taverner | S1E1 · Failure’s Contagious | S5E5 · Circus | 9 |
| Catherine Standish | S1E2 · Work Drinks | S4E5 · Grave Danger | 7 |
| Louisa Guy | S1E2 · Work Drinks | S3E4 · Uninvited Guests | 7 |
| Roddy Ho | S1E5 · Fiasco | S5E6 · Scars | 6 |
| Shirley Dander | S3E5 · Cleaning Up | S3E5 · Cleaning Up | 1 |
| Marcus Longridge | S2E5 · Boardroom Politics | S3E5 · Cleaning Up | 2 |
| David Cartwright | S1E6 · Follies | S4E5 · Grave Danger | 5 |
| Frank Harkness | S4E3 · Penny for Your Thoughts | S4E6 · Hello Goodbye | 3 |
| Emma Flyte | S4E1 · Identity Theft | S5E4 · Missiles | 3 |
| J. K. Coe | S5E3 · Tall Tales | S5E6 · Scars | 2 |
Why “indexed focus”? These counts measure episodes where the guide’s editorial dataset identifies a character as principal to the file. They do not claim every physical appearance or credited episode.