Justice League Unlimited — DC Comics
Issue: #41
The Joker is tired of waiting for Batman to show up, so he's taking the fight to the Watchtower! But just because Batman's not there, it doesn't mean it's unguarded!
Creators: Rachel Gluckstern, Rachel Gluckstern, Heroic Age, Randy Gentile, Dario Brizuela, Grace Randolph
Characters: Batman, Superman, Joker, Bud, Harley Quinn, Lou, Zatanna, Hawkgirl, Steel, Wonder Woman, Crimson Avenger (Travis), Orion, Supergirl, John Stewart, Elongated Man