McSweeten is a Special Agent with the Federal Bureau of Investigation (FBI). His partner is Special Agent Taggert. When the Leverage team first met Special Agent McSweeten, he is working on the Nicky Moscone case in Los Angeles, California (The Wedding Job). Some time later, both McSweeten and his partner Taggert showed up in the desert town of Juan (The Bank Shot Job), where they arrested local meth dealers during a bank robbery.