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.

Justice Society of America (in 1942)

 * Henry Heywood/Commander Steel
 * Amaya Jiwe/Vixen
 * "Dr. Mid-Nite"
 * "Obsidian"
 * "Stargirl"

Former members

 * Rex Tyler/Hourman (former leader; deceased)

Legends

 * Sara Lance/White Canary (leader)
 * Firestorm
 * Jefferson Jackson
 * Martin Stein
 * Nate Heywood
 * Ray Palmer/The Atom
 * Mick Rory/Heat Wave

Former members

 * Carter Hall/Hawkman (formerly; deceased)
 * Rip Hunter (former leader; presumed deceased)
 * Kendra Saunders/Hawkgirl(formerly)
 * Leonard Snart/Captain Cold (formerly; anti-hero; deceased)
 * Scythian Torvil/Hawkman(formerly)

Task Force X / Suicide Squad
(government-controlled black ops team; presented to the public as vigilantes)
 * Harley Quinn
 * Raven
 * Torque

Former members

 * Carrie Cutter/Cupid (returned to crime; incarcerated)
 * John Diggle/Freelancer/Spartan
 * Lyla Diggle Michaels/Harbinger
 * Digger Harkness/Captain Boomerang
 * Ravan Nassar (incarcerated)
 * Floyd Lawton/Deadshot (deceased)
 * Mark Scheffer/Shrapnel (deceased)
 * Ben Turner/Bronze Tiger (deceased)
 * Amanda Waller/Mockingbird (leader; deceased)

Team Arrow

 * Oliver Queen/Green Arrow (leader)
 * Curtis Holt/Mr. Terrific
 * Quentin Lance/Detective
 * Rene Ramirez/Wild Dog
 * Typhuss James Kira/Red Arrow
 * Chloe Sullivan/Watchtower
 * Lois Lane/Stiletto
 * Helena Kyle/Huntress
 * Rory Regan/Ragman
 * Evelyn Sharp/Artemis
 * Laurel Lance/Black Canary
 * Felicity Smoak/Overwatch
 * John Diggle/Spartan

Former members

 * Helena Bertinelli/The Huntress (formerly; turned rogue)
 * Roy Harper/Arsenal (formerly; retired from vigilantism)
 * Sara Lance/The Canary (formerly)
 * Ray Palmer/The Atom (formerly)
 * Thea Queen/Speedy (formerly; retired from vigiliantism)

Birds of Prey

 * Barbara Gordon/Oracle (leader)
 * Helena Kyle/Huntress
 * Dinah Lance/Black Canary

Team Flash

 * Barry Allen/The Flash (leader)
 * Jesse Quick
 * Cisco Ramon/Vibe
 * Caitlin Snow
 * Harrison Wells
 * Iris West
 * Joe West
 * Wally West

Former members

 * Firestorm (formerly)
 * Ronnie Raymond (presumed deceased)
 * Martin Stein
 * Eddie Thawne (formerly; deceased)
 * Eobard Thawne/"Harrison Wells" (formerly; secretly a villain)
 * Wally West/The Flash (Flashpoint timeline)
 * Hunter Zolomon/"Jay Garrick"/The Flash (formerly; secretly a villain; in the Speed Force)

Zoom's meta-human group

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

The Hoods

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