- John Carpenter; Anthony Burch
- Philip Tan
- Marc Deering; Danny Miki; Jonathan Glapion; Philip Tan
- Jay David Ramos
- Gabriela Downie
- The Joker; Six of Hearts [Jeremy]; Jeremy's father (flashback, death); Jeremy's mother; Condiment King; Enchantress [June Moone]
- Joker escapes from Arkham and takes a young mentally disturbed man as his sidekick, and they dress as Batman and Robin and patrol Gotham to stop "crimes".
- Arkham Asylum
Year of the Villain tie-in
Story takes place during the City of Bane storyline that started in Batman (DC, 2016 series) #75.