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.

Heroes

 * Ted Grant/Wildcat (retired)
 * Roy Harper/Arsenal
 * Mari McCabe/Vixen
 * Tatsu Yamashiro

Team Arrow

 * John Diggle/Spartan
 * Laurel Lance/Black Canary
 * Quentin Lance
 * Oliver Queen/Green Arrow
 * Thea Queen/Speedy
 * Felicity Smoak/Overwatch
 * Connor Hawke/Green Arrow (in a potential future)

Team Flash

 * Barry Allen/The Flash
 * Cisco Ramon/Vibe
 * Ronnie Raymond/Firestorm (deceased)
 * Caitlin Snow
 * Eddie Thawne (deceased)

Rip Hunter's team

 * Carter Hall/Hawkman (deceased)
 * Firestorm (active)
 * Jefferson Jackson
 * Martin Stein
 * Rip Hunter
 * Sara Lance/The Canary/White Canary
 * Ray Palmer/The Atom
 * Mick Rory/Heat Wave (anti-hero)
 * Kendra Saunders/Hawkgirl
 * Leonard Snart/Captain Cold (anti-hero)

Villains

 * Helena Bertinelli/The Huntress (formerly; incarcerated)
 * Carrie Cutter/Cupid (formerly; recruited by A.R.G.U.S.)
 * Joseph Falk/The Savior (deceased)
 * Lonnie Machin
 * Malcolm Merlyn
 * Isaac Stanzler (deceased)
 * Eobard Thawne/Reverse-Flash (unborn, preserved in an alternative timeline)

The Hoods

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