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Iain Ryan Books in Order

Iain De Caestecker is a Scottish actor. He is best known for portraying Leopold Fitz/The Doctor in the television series Agents of S.H.I.E.L.D. (2013–2020). He is also known for his roles in Coronation Street (2001–2003) as Adam Barlow and the films Shell (2012), In Fear (2013), Not Another Happy Ending (2013), Lost River (2014), and Overlord (2018).

Bibliography verified: April 2026

Quick Answer

What are all of Iain Ryan's book series? Iain Ryan has written 2 book series. The most notable is the Standalone series.

Complete series list with all books in reading order below.

Book Series by Iain Ryan

About Iain Ryan

Iain De Caestecker is a Scottish actor. He is best known for portraying Leopold Fitz/The Doctor in the television series Agents of S.H.I.E.L.D. (2013–2020). He is also known for his roles in Coronation Street (2001–2003) as Adam Barlow and the films Shell (2012), In Fear (2013), Not Another Happy Ending (2013), Lost River (2014), and Overlord (2018).

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