Kim Martinez is an American DEA agent stationed in Colombia. She came to the DEA as a decorated member of the Marine Corps' Military Police unit, with which she was stationed in Iraq and the US. Born in Chicago to a Dominican father and Mexican mother, Martinez uses her Spanish-speaking heritage to her advantage while working in a DEA's Foreign-deployed Advisory Support Team (FAST) unit in the fight against South American drug cartels. She teams up with Section 20 on the ground in Colombia. She proves to be a formidable ally and team member. Her marksmanship is only outdone by her hand to hand and knife fighting skills.