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
as Batman (voice)
Troy Baker
as The Joker (voice)
Chris Diamantopoulos
as Green Arrow (voice)
Kari Wuhrer
as Silver Banshee (voice)
Noel Fisher
as Gogo Shoto (voice)
Khary Payton
as Cyborg (voice)
Will Friedle
as Nightwing (voice)
Yuri Lowenthal
as Red Robin (voice)
Fred Tatasciore
as Solomon Grundy (voice)
Brian T. Delaney
as Scarecrow (voice)
Dave B. Mitchell
as Clayface (voice)
Richard Epcar
as Commissioner Gordon (voice)
