Suggestions by @jesselee

Mario (Nintendo Character)

as Super Mario in Jack and the pack

Shaker

as Shaker in Jack and the pack

Madame Leota

as Madame Leota in Jack and the pack

Waluigi

as Waluigi in Jack and the pack

Wario

as Wario in Jack and the pack

Animal

as Animal in Jack and the pack

Grover (Sesame Street)

as Grover in Jack and the pack

Nala (Disney)

as Nala in Jack and the pack

Dennis the Hitman

as Dennis the Hitman in Jack and the pack

Nosferatu

as Nosferatu in Jack and the pack

Lex Luthor

as Lex Luthor in Jack and the pack

Lex Luthor

as Lex Luntor in Jack and the pack

Lex Luther

as Lex Luthor in Jack and the pack

Zatanna Zatara

as Zatanna in Jack and the pack

Mr. Freeze (Dr. Victor Fries)

as Mr. Freeze in Jack and the pack

The Riddler (Edward Nigma)

as The Riddler in Jack and the pack

Harley Quinn (Dr. Harleen Quinzel)

as Harley Quinn in Jack and the pack

Batman

as Batman in Jack and the pack

The Penguin (Oswald Cobblepot)

as The Penguin in Jack and the pack

The Joker (Character)

as The Joker in Jack and the pack