Siren is a mermaid and a foe of the Teen Titans and Young Justice. She fought the Titans several times and hypnotized Tempest into during her evil work for a short time until the Titans unhypnotized him. She later joined the Anti Titans group Tartarus led by vandal savage. After Tartarus Disbanded she was later seen alongside other villains fighting Young Justice.

In Zandia She fought Lagoon Boy for a long time after that she hypnotize him and promising to make him from a boy to a man but, before she can do so she is stopped by Jayna one of the Wonder Twins. After That she is seen in Infinite Crisis in which she joined the Secret Society Of Super Villains.