With a legacy that spans over 70 ''years'' (and that's just real-time), and practically ''drenched'' in {{Legacy Character}}s, it's no surprise the Flash family has a ton of major and supporting characters. Now split into pages.
'''Main DCU:'''
* [[Characters/TheFlashTheFlashes The Flashes]] [[note]]Jay Garrick (The Flash I), Barry Allen (The Flash II), Wally West (Kid Flash I/The Flash III), Bart Allen/Bar Torr (Impulse I/Kid Flash II/The Flash IV) and Wally West II (Kid Flash III)[[/note]]
* [[Characters/TheFlashSupportingCharacters Supporting Characters]] [[note]]Joan Williams, Iris West, Linda Park, Meloni Thawne, Jai West, Hartley Rathaway (Pied Piper), Chester Runk (Chunk), Gregory Wolfe, Fred Chyre and Jared Morillol; Ashley Zolomon, Solovar, Nnamdi, The Three Dimwits, Tina and Jery [=McGee=] and Dr. Elias [[/note]]
* [[Characters/TheFlashOtherSpeedsters Other Speedsters]] [[note]]Irey West (Impulse II), Jesse Chambers (Jesse Quick/Liberty Belle II), Johnny Chambers (Johnny Quick), Max Crandall (Quicksilver/Max Mercury), Jenni Ognats (XS), Walter West (Dark Flash), John Fox (the Flash of the 27th Century), Jay Garrick (The Flash of Earth-2), Avery Ho (The Flash of China) and Don and Dawn Allen (The Tornado Twins)[[/note]]
* [[Characters/TheFlashEvilSpeedsters Evil Speedsters]] [[note]]Edward Clariss (The Rival), Eobard Thawne (Professor Zoom/Reverse-Flash I), Hunter Zolomon (Zoom/Reverse-Flash II), Thaddeus Thawne (Inertia/Kid Zoom), Daniel West (Reverse-Flash), Jerry [=McGee=] (Speed Demon), Savitar, Lady Savitar, Black Flash, Johnathan Allen (Johnny Quick), Barry Allen (Future Flash) and August Heart (Godspeed)[[/note]]
* [[Characters/TheFlashTheRogues The Rogues]] [[note]]Abra Kadabra, Captain Boomerang I, Captain Boomerang II, Captain Cold, Doctor Alchemy/Mister Element, Golden Glider/Glider, Heat Wave, Mirror Master I, Mirror Master II, Replicant, Top, Trickster I, Trickster II, Turbine, Weather Wizard, Blacksmith, Girder, Magenta, Murmur, Plunder and Tar Pit[[/note]]
* [[Characters/TheFlashOtherVillains Other Villains]] [[note]]Brother Grimm, Cicada, Cobalt Blue, Double Down, Fallout, Fiddler, Gorilla Grodd, GRiffin, Kilgore, Manfred Mota, Neron, Peek-A-Boo, President Thawne, Rainbow Raider, Razer, Shade, the Thinker, the Turtle and Vandal Savage[[/note]]

'''Live-Action TV Series:'''
* ''Characters/TheFlash1990'' [[note]]Barry Allen / The Flash, Tina [=McGee=], Henry Allen, Nora Allen, Jay Allen (Jay Garrick), Iris West, Sam Scudder / Mirror Master, Leonard Wynters / Captain Cold (Leonard Snart), James Jesse / The Trickster[[/note]]
* ''Characters/TheFlash2014''
** ''[[Characters/ArrowverseBarryAllen Barry Allen / The Flash I]]''
** ''[[Characters/ArrowverseWestAllenFamily West & Allen Family]]'' [[note]]Iris West, Wally West / Kid Flash / The Flash II, Joe West, Henry Allen, Nora Allen, Francine West[[/note]]
** ''[[Characters/ArrowverseSTARLabs S.T.A.R. Labs]]'' [[note]]Harrison "Harry" Wells (Johnny Chambers / Johnny Quick), Jesse Chambers Wells / Jesse Quick, Julian Albert Desmond / Dr. Alchemy, Hartley Rathaway / Pied Piper[[/note]]
** ''[[Characters/ArrowverseOtherEarths Other Earths]]'' [[note]]Jay Garrick / The Flash, James Jesse / The Trickster, Accelerated Man, Shade, Grodd[[/note]]
** ''[[Characters/ArrowverseCentralCityCitizens Central City Citizens]]'' [[note]]Linda Park, Eddie Thawne (Malcolm Thawne), David Singh, Tina [=McGee=], Patty Spivot, Hunter Zolomon, Fred Chyre[[/note]]
** ''[[Characters/ArrowverseTimeCriminals Time Criminals]]'' [[note]]Eobard Thawne / Reverse Flash, Leonard Snart (2014 version), Abra Kadabra[[/note]]
** ''[[Characters/ArrowverseEarth2 Earth 2]]'' [[note]]Hunter Zolomon / Zoom, Barry Allen, Iris West-Allen, Joseph West, Nora Allen, Linda Park / Dr. Light, Patty Spivot, David Singh, James Zolomon, Ashley Zolomon, Evan [=McCulloch=] / Mirror Master, Solovar[[/note]]
** ''[[Characters/ArrowverseOtherEntities Other Entities]]'' [[note]]Speed Force, Black Flash, Barry Allen / Future Flash / Savitar[[/note]]
** ''[[Characters/ArrowverseTheLegends The Legends]]'' [[note]]Leonard Snart / Captain Cold, Mick Rory / Heat Wave[[/note]]
** ''[[Characters/ArrowverseMetahumans Metahumans]]'' [[note]]Grodd, Mark Mardon / Weather Wizard, Sam Scudder / Mirror Master, Rosalind Dillon / The Top, Clyde Mardon, Tony Woodward / Girder, Shawna Baez / Peek-A-Boo, Jeremy Tell / Double Down, Russell Glosson / The Turtle, Joey Monteleone / Tar-Pit, Eliza Harmon / Trajectory, Griffin Grey, Edward Clarriss / TheRival, Frankie Kane / Magenta, Shade, Clive Yorkin[[/note]]
** ''[[Characters/ArrowverseCentralCityCriminals Central City Criminals]]'' [[note]]Lisa Snart / Golden Glider, James Jesse / The Trickster I, Axel Walker / The Trickster II, Lewis Snart, Jared Morillo / Plunder[[/note]]
** ''[[Characters/ArrowverseTaskForceX Task Force X / Suicide Squad]]'' [[note]]Digger Harkness / Captain Boomerang[[/note]]
** ''[[Characters/ArrowverseTheHIVE The H.I.V.E.]]'' [[note]]Michael Amar / Murmur[[/note]]
** ''[[Characters/ArrowverseFutureCharacters Future Characters]]'' [[note]]Barry Allen / The Flash, Iris West-Allen, Wally West, Julian Albert Desmond, Julie Greer[[/note]]
* ''[[Characters/SmallvilleClarksAllies Smallville]]'' [[note]]Bart Allen / The Flash[[/note]]

* ''Characters/DCExtendedUniverse''
** ''[[Characters/DCEUJusticeLeague Justice League]]'' [[note]]Barry Allen / The Flash[[/note]]
** ''[[Characters/DCEUCentralCity Central City]]'' [[note]]Iris West, Henry Allen[[/note]]
** ''[[Characters/DCEUTaskForceXCriminals Task Force X Criminals]]'' [[note]]Digger Harkness/Captain Boomerang[[/note]]

'''Western Animation:'''
* ''Characters/TheBatman'' [[note]]Barry Allen / The Flash, Mirror Master[[/note]]
* ''Characters/BatmanTheBraveAndTheBold'' [[note]]Barry Allen / The Flash II, Eobard Thawne / Prof. Zoom, Jay Garrick / The Flash I, Wally West / Kid Flash, Grodd[[/note]]
* ''Characters/DCAnimatedUniverse''
** ''Characters/JusticeLeagueTheLeague'' [[note]]Wally West / The Flash[[/note]]
** ''Characters/JusticeLeagueSecretSociety'' [[note]]Grodd[[/note]]
* ''Characters/YoungJustice''
** ''Characters/YoungJusticeTheTeamSeasonOne'' [[note]]Wally West / Kid Flash[[/note]]
** ''Characters/YoungJusticeTheTeamSeasonTwo'' [[note]]Bart Allen / Impulse / Kid Flash II[[/note]]
** ''Characters/YoungJusticeJusticeLeague'' [[note]]Barry Allen / The Flash II[[/note]]
** ''Characters/YoungJusticeOtherHeroes'' [[note]]Jay Garrick / The Flash I[[/note]]
** ''Characters/YoungJusticeMinionsOfTheLight'' [[note]]Leonard Snart / Captain Cold[[/note]]
** ''Characters/YoungJusticeOtherCharacters'' [[note]]Iris West-Allen[[/note]]