Suggestions by @toughsandwich
993 suggestions
Hugh Laurie
as Ras al Ghul in Batman
Liam Neeson
as Firefly in Batman and a̶n̶d̶ ̶R̶o̶b̶i̶n̶ ̶I̶I̶ The Joker
Jason Schwartzman
as KillerMoth in Batman and a̶n̶d̶ ̶R̶o̶b̶i̶n̶ ̶I̶I̶ The Joker
Omari Hardwick
as Killer Croc in Batman and a̶n̶d̶ ̶R̶o̶b̶i̶n̶ ̶I̶I̶ The Joker
Aubrey Plaza
as Harley Quinn in Batman and a̶n̶d̶ ̶R̶o̶b̶i̶n̶ ̶I̶I̶ The Joker
Willem Dafoe
as The Joker in Batman and a̶n̶d̶ ̶R̶o̶b̶i̶n̶ ̶I̶I̶ The Joker
Bryan Cranston
as James Gordon in Batman and a̶n̶d̶ ̶R̶o̶b̶i̶n̶ ̶I̶I̶ The Joker
Bill Nighy
as Alfred Pennyworth in Batman and a̶n̶d̶ ̶R̶o̶b̶i̶n̶ ̶I̶I̶ The Joker
Emma Stone
as Batgirl in Batman and a̶n̶d̶ ̶R̶o̶b̶i̶n̶ ̶I̶I̶ The Joker
Connor Swindells
as Robin in Batman and a̶n̶d̶ ̶R̶o̶b̶i̶n̶ ̶I̶I̶ The Joker
Sean Bean
as Batman in Batman and a̶n̶d̶ ̶R̶o̶b̶i̶n̶ ̶I̶I̶ The Joker
Adrian Brody
as Nick Necro in Constantine
Josh Radnor
as Tannarak in Constantine
Neil Patrick Harris
as Brother Night in Constantine
Brian O'Halloran
as Tannarak in Constantine
Robert Knepper
as Psycho Pirate in Constantine
Jeremy Irons
as Doctor Fate in Constantine
Sacha Baron Cohen
as Nergal in Constantine
Ian McKellen
as Beroul in Constantine
David Tennant
as Etrigan the Demon in Constantine