Secret Six

Origin
In 2015, six high-profile criminals were sent to Arkham Asylum for crimes they surely committed. These maniacs promptly escaped from a maximum-security facility to the Gotham underground. Today, still wanted by the GCPD and Batman, they survive as seekers of fortune. If you have a problem... if no one else can help... and if you're out of your mind... maybe you can hire... The SECRET SIX.

Links and References

 * Secret Six Gallery
 * Earth-27's Secret Six