Marvel versus DC / DC versus Marvel

Catwoman

Selina Kyle

Martian Manhunter

J'Onn J'Onzz

Jimmy Olsen

Superman's pal

Supergirl

Kara Zor-El, 1959-1985, 2004-present

Black Canary

Dinah Laurel Lance

Cyborg

Victor Stone

J. Jonah Jameson

Doctor Doom

Victor Von Doom

Perry White

from Superman

Robin

Tim Drake

Punisher

Frank Castle

Gambit

Remy LeBeau

Silver Surfer

Norrin Radd

Captain Marvel

Billy Batson

The Atom

Al Pratt

Killer Croc

Waylon Jones

Scarecrow

Jonathan Crane, Batman villain

Green Lantern

Kyle Rayner of Earth

Darkseid

DC, Fourth World

Kingpin

Wilson Fisk

Riddler

Edward Nigma

Deathstroke

Slade Wilson

Superboy

Kon-El / Conner Kent

Firestorm

Ronnie Raymond & Prof. Martin Stein (merged)

The Spectre

Jim Corrigan

Thomas Wayne

father of Bruce Wayne

Lobo

DC, bounty hunter

Bane

from Batman

Martha Wayne

mother of Bruce Wayne

Steel

John Henry Irons

Man-Bat

Kirk Langstrom

Tweety

Looney Tunes

Metallo

John Corben

Green Arrow

Connor Hawke

Abomination

Emil Blonsky

Joe Chill

murderer of Thomas and Martha Wayne

Wile E. Coyote

Vic Sage

The Question

Road Runner

Hank Henshaw

Cyborg Superman

Vicki Grant's H-Dial aliases

Dial H for Hero, identities held by Vicki Grant

Etrigan the Demon

Jason Blood

Starman

Jack Knight

White Witch

Mysa Nal of Naltor

Tana Moon

Speedy Gonzales

Looney Tunes

Storm

seahorse, DC

Morty

from Blue Devil, DC

Sergei Minerva

Lethal, Amalgam (DC / Marvel)