- This article refers to the character, for the episode see Vassa, Queen of the Mermen
|First Appearance:||"Vassa, Queen of the Mermen"|
|Created by:||Oscar Bensol|
|Portrayed by:||Diane Maddox|
Vassa is queen of the Mermen.
Sometime later, Vassa found herself in a temporary alliance with Black Manta and The Brain. Calling themselves the Trio of Terror, they launched a three-pronged attack against Aquaman and Atlantis. When they were defeated the alliance dissolved and the trio turned against each other ("Trio of Terror").