The Joker is aided in his Halloween quest to render modern technology useless and take over Gotham City by Solomon Grundy, Silver Banshee, Clayface and Scarecrow.
Roger Craig Smith:...Batman (voice) Noel Fisher:...Gogo Shoto (voice) Troy Baker:...The Joker (voice) Kari Wuhrer:...Silver Banshee (voice) Will Friedle:...Nightwing (voice) Chris Diamantopoulos:...Green Arrow (voice) Khary Payton:...Cyborg (voice)