[spoilers] Lucas. Just Lucas.

[BoHenley]

What amazing summaries! The more I watch and study it more closely (thanks to you) the more I think that Lucas has lost his (personal) identity, i.e. who he is, unless he's in action for MI5 - then he's Lucas. If we partly link the theme of S9 where he buried a former identity, then it does partly work (even if I don't like it). It's sad. But what a great acting vehicle for Richard Armitage. The closer you watch him, the more amazing is his acting. What an intelligent actor!