Real Name: N/A
Occupation: Criminal
Marital Status: Unknown
Base of Operations: Gotham
Height: Unknown
Weight: Unknown
Eyes: Brown
Hair: Black
First Appearance: Titans #5 (July 1999)
Created By: N/A

An undersea woman appalled at mankind's polluting ways, Siren became an eco-terrorist coming into conflict with the Titans when she made an entire fishing village terrified of water. She later joined with Vandal Savage and Tartarus, a group which fought the Titans team again.