Batman / Superman: World's Finest

John Constantine

DC, supernatural

Deathstroke

Slade Wilson

Doctor Fate

Kent Nelson

Superboy

Kon-El / Conner Kent

Firestorm

Ronnie Raymond & Prof. Martin Stein (merged)

Hippolyta

mother of Wonder Woman

Sinestro

Green Lantern of Korugar, Sector 1417

Speedy

Roy Harper

Lobo

DC, bounty hunter

Gorilla Grodd

Flash villain

Black Adam

Fawcett / DC, Teth-Adam

Blue Beetle

Jaime Reyes

Black Manta

David Hyde, Aquaman villain

Johnny Thunder

superhero

Mercury

from The Metal Men

Doomsday

Thunderbolt

Johnny Thunder's djinn

Platinum

from The Metal Men

Superman

Jon Kent

Ace the Bat-Hound

from Batman

Mr. Mxyzptlk

Superman villain, Silver Age / Modern Age

Cheetah

secret identity unknown, Ame-Comi

Lead

from The Metal Men

Gold

from The Metal Men

Tin

from The Metal Men

Batman

Terry McGinnis

Amazo

android, Justice League villain

Dr. Occult

DC mystic

The Batman Who Laughs

Bruce Wayne, Earth -22, Dark Multiverse

Bat-Mite

Abra Kadabra

Citizen Abra, Flash villain

The Captain

Billy Batson

Chemo

Metal Men villain

Merlyn

DC, Dark Archer, Arthur King

The Parasite

Raymond Maxwell Jensen

Prince Ra-Man

Elastic Lad

Jimmy Olsen

Ariadne

DC

The Duke of Deception

Ares' servant

Boy Thunder

David Sikela

Flamebird

Jimmy Olsen, as hero of Kandor