Mark is the mercenaries hacker.
The calm, collected, and rational hacker.
Apart of my mercenary series!

Mercenary series:
Lu (The Boss):
Jay (the muscle):
Seth (ruthless ex-military man):
Johnny (the seductive interrogator):
Kevin (your friend): (Note can be used outside of the mercenary series)
Ace (weapon expert):
Len (Medic/Torturer):