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)
Troy Baker
The Joker (voice)
Chris Diamantopoulos
Green Arrow (voice)
Kari Wührer
Silver Banshee (voice)
Noel Fisher
Gogo Shoto (voice)
Khary Payton
Cyborg (voice)
Will Friedle
Nightwing (voice)
Yuri Lowenthal
Red Robin (voice)
