In certain circles, Marco Rodel Cruz is simply the 'IT guy' however in this series, it would be much more accurate to call him the hacker. While most of the other characters commit brutal crimes to maintain their power and control, Marco is working tirelessly in the background to ensure their victory. His expertise includes hacking security cameras (and deactivating them when needed), hacking emails, accounts, and of course, breaking into various company and organization systems. He literally can do anything IT, and he does.
Jorge Hernandez met Marco while staying at a hotel where the Filipino worked. Impressed with his professionalism, he instinctively took the immigrant under his wing. Learning that Marco was an IT specialist before moving to Canada, Jorge did a little digging to discover that his abilities went well beyond creating a website and solving minor IT problems. However, it was Marco's assurance of confidentiality that was considered his most valuable trait. Keeping quiet is a big part of this dark world.
Marco is a likable guy. Often described as having a smile on his face, he's an interesting contrast to the more sinister characters. After all, he mightn't carry a gun to the potential crime scene, but he clears the path for the others. Perhaps this makes Marco the most lethal one in the group.