The Fourth Generation
Halycon City – aka San Diego.
Halcyon's Past - specifically the 1930s
Oolu Halcyon – Alternate reality where the Oolu took over Earth in the 1960s.
Wildcards – Us! That is, a group of young heroes that everyone seems to want to control. Previously The Delinquents, The Corps, and The Delinquent Corps.
Exemplars – Silver Age heroes in Halycon City. They are one of the primary supergroups in the country, and possibly the world.
The Violent Group – a group of supers that were affected by THULE chemicals and perform vandalism.
Cleanup Crew – a group of supers that were affected by THULE chemicals and became activists for the environment.
Southwest Rangers – a group of supers that are popular throughout Southern California and the southwestern states of America
THULE – corporation involved in pharma and agriculture.
BodyGuard – program that genetically creates super soldiers.
The Troika – a secret organization deeply involved in Halcyon affairs, especially those involving supers.
Oolu – alien race that judges and conquers other worlds.
Martians – second alien race, not much known but they attacked New Jersey one time.
Chompers – robot dogs who eat and explode
Chomper 2.0 - levitating balls of liquid metal that fire lasers. Colloquially known as Death Orbs.
Super-steroid – a drug developed by THULE and "accidentally" leaked onto the streets