The rich Nigerian, Hassaan Obikwa, specializes in disappearing corpses, which actually comes in handy when Lin and Abdullah need to move Maurizio's body. He owes Lin a favor after having his life saved by our dear Aussie, and turns out to be good to his word.
His driver, Raheem, is not so rich, but also Nigerian. Unfortunately, he ends up in jail around the same time as Lin and is the victim of some sick torture that twists and breaks his gigantic, strong arms. Luckily, since he and Lin are now in the business of doing each other favors, Lin gets him out at the same time that he himself is released.