Emily is an extremely stubborn and strong-willed woman who refuses to give ground in any situation. When taken captive, she makes no effort to request release or otherwise lose face, but instead remains calm. She also appears to have little sense of humor, or indeed any personality not closely related to her job. She was unaware of her favorite color, although according to Dragon it is silver.
Piggot is an innately suspicious person but especially harbors a deep hatred towards all capes, believing them to be bullies at best and monsters at worst. Her tunnel vision towards capes aren't entirely unjustified, as, during the Nilbog mission, where she was crippled and her entire squad killed, the supporting capes ran for their lives and left the non-parahumans to die.
Despite these prejudiced views, Piggot is aware of some of her own shortcomings as a person, saying that she knows she is ugly and fat and that it would be a waste of time for Tattletale to psychoanalyze her.
As a former PRT agent, she was trained in resisting mental and emotional attacks.
Piggot was a PRT field agent before being assigned to the ground forces attempting to take down Nilbog. During the mission, her entire squad was killed after their supporting capes ran away. She also lost her kidneys and some muscles in her legs, forcing her to use hemodialysis every night and preventing her from exercising vigorously. She was one of the only two survivors of the mission, the other being Coil.
Following the event, Piggot was appointed Director of the PRT ENE.
Piggot reprimanded the Brockton Bay Wards for the many disastrous actions they took while trying to prevent the Undersiders from robbing a bank. She garnished their wages to pay for the damages as would she if they were normal law enforcement agents.
Piggot appeared the most during the Monarch arc. When Dragon's suits were brought to Brockton Bay in an attempt to remove the hold the Undersiders and Travelers had put on the city, Piggot was taken hostage in an attempt to end the hostilities. Piggot's health issues quickly prevented a hostage situation from being viable, however, and she was released back to the PRT.
During Coil's coup during the debate, Piggot was stabbed with knives thrown by Circus, incapacitating her.
↑"I could control her," Regent said. "Send Shatterbird back, lock her up, get control." "Which would take time, again," Tattletale said. "The benefits would be negligible, and it would take longer than you think, because she's trained in resisting mental and emotional attacks."-Monarch 16.3
↑No. He’d been trained to deal with mental and emotional attacks. They all had. Had to think abstractly, consider the edges of the problem. Even if their perceptions were under attack, there were always hints, always clues. - Excerpt from Interlude 16.x
↑Except Director Piggot. It would have been easier to stare down a Bengal tiger than to meet her steel-gray eyes - Interlude 15