Real Name: Isabella Cheranova
Occupation: Assassin
Marital Status: Single
Base of Operations: Gotham City
Height: 5ft 4in
Weight: 110lbs
Eyes: Hazel
Hair: Red
First Appearance: Batman: Legends of the Dark Knight #119 (July 1999)
Created By: Greg Rucka

The sole survivor of the experimental Russian Turing process, Isabella Cheranova was outfitted with an implant in the right side of her head that enables her to intercept neural frequencies. During No Man's Land, Echo briefly sided with Two-Face and read the Batman's mind, learning all of the Dark Knight's secrets in the process.