[spoilers] Lucas. Just Lucas.

[Byatil]

Interesting points about the costumes! I'd assume the coats were supposed to have that "heroic" implication; the spooks also tend to wear coats with high collars which are buttoned up, which implies a sense of secrecy and authority.

I also thought it was interesting that Lucas always wore long-sleeved shirts, sometimes polo-necks, always covering a lot of skin. Presumably to cover the tattoos, as well as a subtle suggestion of his secretive nature? Depends how far costumes are considered in terms of character-development; I have no knowledge of the field whatsoever.