Suggestions by @johnsharkey

Mickey Mouse

as Base roster in Disney battle-verse

Score: +1

Alex Brightman

as Betelgeuse in Beetlejuice (2024)

Score: +1

Deadpool (Wade Wilson)

as Dlc characters in Thunderbolts: kill the avengers

Score: +1

Lady Bullseye

as Dlc characters in Thunderbolts: kill the avengers

Score: +1

Doctor Octopus (Olivia Octavius)

as Dlc characters in Thunderbolts: kill the avengers

Score: +1

The Spectre

as Fighter pack 4 in Injustice 3

Score: +1

Deathstroke (Slade Wilson)

as Fighter pack 4 in Injustice 3

Score: +1

Snake Eyes (G.I. Joe)

as Fighter pack 4 in Injustice 3

Score: +2

Danny Phantom

as Fighter pack 4 in Injustice 3

Score: +2

James Bond

as Fighter pack 4 in Injustice 3

Score: +2

Black Adam

as Fighter pack 3 in Injustice 3

Score: +1

Blue Beetle

as Returning fighters in Injustice 3

Score: +1

Red Ranger

as Premier skins in Injustice 3

Score: +1

Batwing (Luke Fox)

as Premier skins in Injustice 3

Score: +1

Nite Owl (Dan Dreiberg)

as Premier skins in Injustice 3

Score: +1

Lobo

as Fighter pack 3 in Injustice 3

Score: +1

Captain Atom

as Fighter pack 3 in Injustice 3

Score: +1

Doctor Manhattan

as Fighter pack 3 in Injustice 3

Score: +1

Beetlejuice

as Fighter pack 3 in Injustice 3

Score: +2

Green Ranger

as Fighter pack 3 in Injustice 3

Score: +2