Batman: Four of a KindChuck Dixon, Doug Moench, Alan Grant, Brian Apthorp, Kieron Dwyer, Bret Blevins, Enrique AlcatenaBatman Post-Crisis, book 11

Characters in Batman: Four of a Kind

5 characters, main characters first.

Supporting characters

Man-Bat
Jonathan Crane
Also in Batman: Knightfall, Part Two: Who Rules the Night, Batman Vampire
Edward Nigma
Also in Batman: Arkham City, Batman: Harley Quinn, Batman Vampire
Pamela Isley
Also in Living Hell, Batman: contagion, Batman, Batman: Detective, Batman: Hush, Vol. 1, Batman: The Night of the Owls, Batman Vampire, Hush
Bruce Wayne
Also in Batman and Son, Gotham underground, Living Hell, The Batman in Nine Lives, Batman: Two-Face and Scarecrow - Year One, Batman, Batman: Unseen, Batman: Knightfall, Part Two: Who Rules the Night, Batman: Knightfall, Part Three: Knightsend, Batman: Zero Hour