Earth Thirty-Eight

Earth Thirty-Eight is one of the many universes in the multiverse.

History
This Earth is one where the existence of alien life has been common knowledge for over a decade—in particular, the Kryptonian heroes Superman and Supergirl. Barry Allen accidentally traveled to this Earth while testing out his Tachyon device and was able to return home with Supergirl's aid

A few months later, Barry and Cisco traveled to this Earth to recruit Supergirl's help in facing the Dominators.

Residents

 * Dirk Armstrong
 * Astra (deceased)
 * Black Mercy (deceased)
 * Brainiac 8/Indigo
 * Carl
 * Snapper Carr
 * Cameron Chase
 * "The Commander"
 * John Corben/Metallo (deceased)
 * Miranda Crane
 * Alex Danvers
 * Eliza Danvers
 * Jeremiah Danvers
 * Kara Danvers/Supergirl
 * Dave
 * "Jane Doe"/Bizarro
 * Chester Dunholtz
 * Ella
 * Caren Falqnerr/Rampage
 * Adam Foster
 * Gilcrist/Metallo (deceased)
 * Gor
 * Carter Grant
 * Cat Grant
 * Katherine Grant
 * Amelia Hamilton
 * Jim Harper
 * Hartmann
 * Hayashi
 * Hellgrammite (deceased)
 * Hank Henshaw/Cyborg Superman
 * Jemm (deceased)
 * Rudy Jones (deceased)
 * J'onn J'onzz/"Hank Henshaw"
 * Kelly (deceased)
 * Clark Kent/Superman
 * Kerfuffle
 * Ethan Knox (deceased)
 * Alyssa Krull (deceased)
 * Ben Krull/Reactron
 * Lois Lane
 * Lucy Lane
 * Sam Lane
 * Maxwell Lord
 * Lex Luthor
 * Lena Luthor
 * Lillian Luthor
 * Alphonse Luzano
 * Master Jailer
 * Olivia Marsdin
 * Maxima
 * T.O. Morrow (deceased)
 * M'gann M'orzz
 * Mon-El
 * Moyner (deceased)
 * Mur
 * Leyna Nguyen
 * Non
 * James Olsen/Guardian
 * Bill O'Reilly
 * Paulina
 * Gabriel Phillips (deceased)
 * Reynolds (deceased)
 * Rick
 * Maggie Sawyer
 * Winn Schott
 * Winslow Schott Sr./Toyman
 * "Scorcher"
 * Veronica Sinclair/Roulette
 * Siobhan Smythe/Silver Banshee
 * Tor
 * Tracy
 * Tsung
 * Vartox (deceased)
 * Vasquez
 * Perry White
 * Leslie Willis/Livewire
 * Yale
 * Ethan Knox's daughter
 * James Olsen's mother
 * Psychic Fort Rozz escapee (deceased)
 * Tracy's sister
 * Unnamed K'hund
 * Unnamed White Martian

Formerly

 * Barry Allen/The Flash
 * Cisco Ramon/Vibe

Known locations

 * United States of America
 * Central City
 * Gotham
 * Metropolis
 * Midvale
 * National City
 * CatCo Worldwide Media
 * D.E.O. headquarters
 * Kara Danvers' apartment
 * Opal City
 * Kasnia
 * Corto Maltese