Suggestions by @johnguerin

Denzel Washington

as Lucius Fox in Batman: The Killing Joke

Tanner Buchanan

as Nightwing in Batman: The Killing Joke

Tanner Buchanan

as Nightwing in Batman: The Killing Joke

Ray Winstone

as Oswald Cobblepot (The Penguin) in Batman: The Killing Joke

Bryan Cranston

as James Gordon in Batman: The Killing Joke

Giancarlo Esposito

as Salvator Maroni in Batman: The Killing Joke

Noah Schnapp

as Young Jason Todd in Batman: The Killing Joke

Daniel DiMaggio

as Nightwing in Batman: The Killing Joke

Willem Dafoe

as Joker in Batman: The Killing Joke

Karl Urban

as Batman in Batman: The Killing Joke