The Pastmaster mentions this council when he first searches for his Tome of Time at the graveyard shortly after his release. Perhaps it was this council who imprisoned the Pastmaster, but he never stated who exactly it was.
Xanatos4 spent six months working on this incredibly detailed model of the Turbokat. In his own words he put his soul into it, and the effort shows. Everything from the rivets, the grunge wear and tear, the fabric fibers on the upholstery of the Ejektor seats to the weapons and flight control panels are all incredibly detailed.
Callie Briggs is the Deputy Mayor of Megakat City and is often the one running it while Mayor Manx is teeing off for another round of golf. She is highly independent, and has proved on more than one occasion that she is quite capable of taking care of herself during a crisis. She is a friend to the SWAT Kats, and alerts them of any trouble happening within the city that they should be aware of.