[spoilers] Lucas. Just Lucas.

[Byatil]

A point of interest: in 7.7, Lucas is sent to Russia to retrieve an asset. The two share a quote "When you love someone, everything is understood", penned by the Russian revolutionist Maxim Gorky. I say "revolutionist" because Gorky was a Marxist - another man who didn't agree with the system of capitalism. He was imprisoned a number of times, and became quite revered in Russia for his work - even making friends in Lenin and Stalin.
It's interesting how Lucas is constantly linked to these figures who (to a point) resent society and the various systems within it. Even more so, as the link to Gorky suggests that Lucas befriends people whose beliefs he doesn't necessarily share or agree with.

On reflection, could this also link to Elizabeta? If she loved him she would have understood?