The Atlantean Protective Squad was a team of Atlanteans whose duty was to keep external dangers, such as sharks and other dangerous aquatic life, away from Atlantis. If possible they did so without the use of force, but were equipped with weapons for emergencies. ("Supergirl's First Romance!")

When the criminal Malo appeared, they tried to fight him, but their weapons were no match for his Magic Trident. Of course, in reality, Malo was Superman in disguise, and the Squad was playing along. ("Supergirl's Busiest Day!")