Marcus

Marcus is a very collected and intelligent man, despite his casual fashion choices, which he adapted to lower peoples perception of him, always helped him to collect information and gain some peoples trust more easily.
He has a soft spot for fashion and then he is in a more relaxed environment he allows himself to dress up. He feels more natural in a suit but for his field work goes for a more street appropriate look.
Close friends often call him boring and a workaholic, because he is pretty much married to his job. He was assigned to be in charge of an assassins group. The promotion made him very happy, but when he got to know the "team" closer he regretted it.
Constant headache from the drama between the killers, is too much eccentricity for his taste but he knows despite all that he can trust them to do the job well.
Even tho, the team often mock him that he is too much of a softy and allows them to ride on his back.

William pretty much forced his friendship  onto him, the Englishman was too intrigued on how fast he could corrupt this straight-laced fellah.

likes

discipline, good manners, money, getting a job done cleanly, order, cleanliness.

dislikes 

Chaos, when William get drunk and tries to give him a lap-dance,  folded edges in books, misplaces items, rudeness.