Elseworlds, Part 2

Synopsis
With Oliver and Barry still stuck in the other's bodies, the two get a lead on John Deegan and head to Gotham City with Supergirl to figure out why their reality has changed. While there, they meet the mysterious Kate Kane who provides them with information that leads the group to Arkham Asylum.

Protagonists

 * Team Arrow
 * The Flash (Oliver Queen)
 * John Diggle
 * Felicity Smoak
 * Curtis Holt
 * Team Flash
 * Green Arrow (Barry Allen)
 * Killer Frost (Caitlin Snow)
 * Cisco Ramon
 * Supergirl (Kara Zor-El)
 * Batwoman (Kate Kane)
 * The Flash (Barry Allen)

Antagonists

 * Reverse-Flash (Eobard Thawne)
 * Kane Wolfman (Joe Wilson)
 * Superman (John Deegan)
 * Dark Archer (Malcolm Merlyn)
 * The Monitor (Mar Novu)
 * Nora Fries
 * Ricardo Diaz
 * Psycho Pirate (Roger Hayden)

Other Characters

 * Alfred
 * B. Karlo
 * Batman (Bruce Wayne)
 * Dinah Laurel Lance
 * Laurel Lance
 * E. Nigma
 * Iris West-Allen
 * M. Guggenheim
 * O. Cobblepot
 * P. Isley
 * Sara Lance
 * Vesper Fairchild

Teams and Organizations

 * A.R.G.U.S.
 * Arkham Asylum
 * Central City Picture News
 * CCPD
 * Crows Security
 * GCPD
 * Queen Consolidated
 * S.T.A.R. Labs
 * Wayne Enterprises

Objects and Concepts

 * Mask
 * Batarang
 * Batmobile
 * Bat-signal
 * Batsuit
 * Book of Destiny
 * Breach
 * CFL Quark Matter
 * Deathstroke Suit
 * Fear toxin
 * Freeze gun
 * Green Arrow Suit
 * Inter-Dimensional Extrapolator
 * Kara Danvers' Glasses
 * Kryptonite
 * Dark Archer Suit
 * Malcolm Merlyn's Bow and Arrow
 * Medusa Mask
 * Oliver Queen's Bow and Arrow
 * Umbrella
 * Quantum Flux Anchor
 * Reverse-Flash Suit
 * Cane
 * Supergirl Suit
 * Kal-El's Blanket
 * Superman Suit (John Deegan)
 * The Flash Suit
 * The Flash Suit
 * The Monitor Armor

Locations

 * Earth-1
 * Earth
 * United States of America
 * Central City
 * Pipeline
 * Gotham City
 * Arkham Asylum
 * GCPD
 * Wayne Enterprises
 * Batcave
 * Star City
 * A.R.G.U.S. Headquarters
 * Earth-38
 * National City
 * Earth-X