Sirkus

Sirkus is a planet "some 400 light-years away" from Earth which orbited a vast blue star. While its inhabitants include Flamebirds and Eel-Creatures, the term "Sirkian" has been specifically applied to an all-female terran race. These Sirkians were fairly tall, very lean, had only one centered eye, and no mouth. They communicated through telepathy, and often invoked the hallowed name of Cormak. According to a Sirkian leader, "It's been so long since we've had a war on Sirkus, we have no skill in fighting!"

Superman was unwittingly drawn to Sirkus to defend these people from the diabolical Despero, alongside an ersatz Justice League. Despero sought the surrender of their Cosmic Cannon, and threatened to destroy the world if he had to take it by force. Located ten miles south of the capital, Mushroom City, the Cosmic Cannon rested inside a conical tower within a tropical swamp. Although Despero was kept from acquiring the Cosmic Cannon at first, after the defeat of Sirkus' borrowed champions it is assumed it came into his possession. Though Despero promised and Sirkus' people feared an ultimate sanction, the despot's last word on the world's fate was his intention to enslave them. However, Despero soon departed Sirkus in a ship also containing Superman and the Sirkian Justice League. Presumably, the Sirkians were returned to their home after Despero was defeated by the actual League.

Sirkus' only appearance to date was in Justice League of America #133 (8/76).