Vigilante

A vigilante, also known as a "mask", is an individual who takes the law into their own hands, believing that the SCIS and the court system are unable and unreliable to bring criminals to justice. However, not all vigilantes are fighting for justice, some do it out of personal revenge and antagonistic reasoning. It is also common for vigilantes to take on a moniker to be known by, some by personal choice and others having been named by the public.

Earth One

 * Malcolm Merlyn / Dark Archer
 * Eobard Thawne / Reverse-Flash
 * Lonnie Machin
 * Selina Kyle / Catwoman
 * Miranda Tate / The Cat

Formerly

 * Carrie Cutter / Cupid (incarcerated)
 * Hartley Rathaway / Pied Piper (reformed)
 * Joseph Monteleone / Tar Pit (incarcerated)
 * Helena Bertinelli / The Huntress (incarcerated)
 * Joseph Falk / The Savior (deceased)
 * Aglin (incarcerated)
 * Baker (incarcerated)
 * Colton (incarcerated)
 * Jeff Deveau (incarcerated)
 * Isaac Stanzler (deceased)

Formerly

 * Al Rothstein / Atom-Smasher (deceased)
 * Laurel Lance / Black Siren (incarcerated)
 * Deathstorm (inactive)
 * Ronnie Raymond (deceased)
 * Martin Stein (unwillingly; deceased)
 * Linda Park / Dr. Light (retired from vigilantism)
 * Adam Fells / Geomancer (deceased)
 * Caitlin Snow / Killer Frost (deceased)
 * Shay Lamden / King Shark (incarcerated)
 * Cisco Ramon / Reverb (deceased)
 * Dante Ramon / Rupture (deceased)
 * Eddie Slick / Sand Demon (deceased)
 * Hunter Zolomon / Zoom (in the Speed Force)

Legends

 * Firestorm
 * Jefferson Jackson
 * Martin Stein
 * Mick Rory / Heat Wave
 * Ray Palmer / The Atom
 * Sara Lance / White Canary
 * Nate Heywood
 * Leonard Snart / Captain Cold (formerly; anti-hero; deceased)
 * Kendra Saunders / Hawkgirl (formerly)
 * Carter Hall / Hawkman (formerly; deceased)
 * Scythian Torvil / Hawkman (formerly)
 * Rip Hunter (presumed deceased; former leader)

Team Arrow

 * Quentin Lance / Detective
 * Oliver Queen / Green Arrow (leader)
 * Felicity Smoak / Overwatch
 * Typhuss James Kira / Red Arrow
 * Chloe Sullivan / Watchtower
 * Lois Lane / Stiletto
 * Helena Kyle / Huntress
 * Ragman
 * Rene Ramirez / Wild Dog
 * Curtis Holt
 * Evelyn Sharp
 * Roy Harper / Arsenal (retired from vigilantism)
 * Laurel Lance / Black Canary
 * John Diggle / Spartan (formerly; retired from vigilantism)
 * Thea Queen / Speedy (formerly; retired from vigiliantism)
 * Helena Bertinelli / The Huntress (formerly; turned rogue)
 * Ray Palmer / The Atom (formerly)
 * Sara Lance / White Canary (formerly)
 * Connor Hawke / Green Arrow (in a potential future)

Team Flash

 * Jesse Quick
 * Barry Allen / The Flash (leader)
 * Cisco Ramon / Vibe
 * Caitlin Snow
 * Harrison Wells
 * Iris West
 * Joe West
 * Wally West
 * Firestorm (formerly)
 * Ronnie Raymond (presumed deceased)
 * Martin Stein
 * Hunter Zolomon / "Jay Garrick" / The Flash (formerly; secretly a villain; in the Speed Force)
 * Eddie Thawne (formerly; deceased)
 * Eobard Thawne / "Harrison Wells" (formerly; secretly a villain)
 * Wally West / The Flash (Flashpoint timeline)
 * Birds of Prey
 * Barbara Gordon / Oracle
 * Helena Kyle / Huntress
 * Dinah Lance / Black Canary

Zoom's meta-human group

 * Laurel Lance / Black Siren (incarcerated)
 * Deathstorm (inactive)
 * Ronnie Raymond (deceased)
 * Martin Stein (unwillingly; deceased)
 * Caitlin Snow / Killer Frost (deceased)
 * Shay Lamden / King Shark (incarcerated)
 * Cisco Ramon / Reverb (deceased)
 * Dante Ramon / Rupture (deceased)
 * Hunter Zolomon / Zoom (in the Speed Force)

The Hoods

 * Aglin (incarcerated)
 * Baker (incarcerated)
 * Colton (incarcerated)
 * Jeff Deveau (incarcerated)