The Recurring Cast
Character · Harvath and the Carlton Group · 11 books

Lydia Ryan

Carlton Group deputy · Brad Thor

Lydia Ryan is the Carlton Group’s deputy.

Spoiler-free profile written for The Recurring Cast.

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Character facts

First appearance
Foreign Agent (2016)
Latest appearance
Choke Point (2026)
Books
11 (11 minor)
Series
Scot Harvath
Author
Brad Thor
Circle
Harvath and the Carlton Group

Where to meet Lydia Ryan

Lydia Ryan first appears in Foreign Agent (2016), in a minor role, book 15 of the Scot Harvath series.

Buy Foreign Agent

Every book with Lydia Ryan

In publication order, with the size of their role in each.

  1. 2016·Foreign Agentminor role · Scot HarvathBuy
  2. 2017·Use of Forceminor role · Scot HarvathBuy
  3. 2018·Spymasterminor role · Scot HarvathBuy
  4. 2019·Backlashminor role · Scot HarvathBuy
  5. 2020·Near Darkminor role · Scot HarvathBuy
  6. 2021·Black Iceminor role · Scot HarvathBuy
  7. 2022·Rising Tigerminor role · Scot HarvathBuy
  8. 2023·Dead Fallminor role · Scot HarvathBuy
  9. 2024·Shadow of Doubtminor role · Scot HarvathBuy
  10. 2025·Edge of Honorminor role · Scot HarvathBuy
  11. 2026·Choke Pointminor role · Scot HarvathBuy

Appears most often with

CharacterBooks together
NicholasFormer dark-web broker known as the Troll, Harvath’s ally11
Scot HarvathFormer Navy SEAL and covert operative11
Sølvi KolstadNorwegian intelligence officer7
Reed CarltonThe Old Man, founder of the Carlton Group5