After the Outsider arrived on Prime Earth in Darkseid's wake, he took a year to take stock. However, as soon as he had, he saw the need for a unified villain underground. A year into the existence of the Justice League, he began contacting their enemies. The Secret Society spread from there, drawing in non-League villains and even defectors from A.R.G.U.S., until they were so powerful A.R.G.U.S. had to investigate them. They lost the encounter but managed to keep their secrets. When the Outsider's plan to free his shadowy masters began, the Secret Society was there to do his bidding.
Leader:
The Outsider
Members:
Professor Ivo
The Scarecrow
The Cheetah
Mister Freeze
Blockbuster
Copperhead
Signalman
The Shaggy Man
Vandal Savage
Giganta
Amazo
Doctor Psycho
Felix Faust
Killer Frost
Plastique
Multiplex
Hyena
The Scavenger
Angle Man
Bane
Black Bison
Black Mask
Captain Boomerang
Cluemaster
Deadshot
Deathstroke
Despero
Doctor Destiny
Doctor Phosphorus
Dollmaker
Metallo
Emperor Penguin
Gizmo
Jinx
Mammoth
Psimon
Shimmer
Firefly
Flamingo
Gentleman Ghost
Grodd
Harley Quinn
Hugo Strange
Hector Hammond
The Joker's Daughter
The Key
Killer Croc
King Shark
Lion-Mane
Man-Bat
Merlyn
Mister Zsasz
Mister Freeze
Neutron
Nocturna
The Parasite
The Penguin
Poison Ivy
The Prankster
Professor Pyg
The Riddler
Shadow-Thief
Slipknot
Starro
The Mad Hatter
Tweedledee
Tweedledum
Typhoon
White Rabbit
Electrocutioner
Nightfall
Black Mass
Shatterfist
Weasel
Hellhound
Mauschen
Elephant Man
Vortex
Primape
The Royal Flush Gang
Former Members:
Black Manta
Two-Face
Captain Cold
Glider
Heat Wave
Mirror Master
The Weather Wizard
The Trickster
The Monocle