|Presumed deceased citizen of the United States.|
|Nation or Planet of Origin|
|Base of Operations|
|Normal human with training as a police officer.|
|Various civilian and military weapons.|
|Nightwing 80-Page Giant #1 (Dec. 2000)|
|Chuck Dixon & Michael Collins|
Kate Riordan was the latest officer in a long line of a family of Blüdhaven police.
The sole survivor of an assassination upon her entire family by the local mafia, she secretly survived the explosion, but at the cost of her face and her sanity.
Riordan seeks revenge against those on both sides of the law that she feels responsible for her families death, first she brands them with the number of her badge and then kills them as the psychotic Hella.