Lopez is a corrupt former police officer of the Star City Police Department.
After Isaac Stanzler left the abandoned nightclub that he led Ted Grant into, the police then arrived. Lopez arrested Ted on multiple counts of homicide. Ted denied this, stating that he nothing to do with it, however, she revealed that they had found a body in his locker.
When Captain Quentin Lance arrived at the police department, Lopez told him that someone had hacked into the emergency broadcast system, and they'd taken over all the networks. She then listened to Oliver Queen's announcement (under the persona of Green Arrow) that he is the successor of the late Arrow and aspired to be the symbol of hope that his predecessor never was.
After Oliver used a device that Felicity made on his wrist to copy all of Diaz's files (that contain a list of every person under his payroll) and gave it to Samanda Watson; Lopez was arrested along with all the people under Diaz's payroll by the FBI.
Behind the scenes
- Lopez's actress, Alison Araya, also portrayed Diaz in a minor role on .
- Interestingly, both Lopez and Diaz are characters in law enforcement who oppose vigilantes.