Suggestions by @josse

Willem Dafoe

as Joker in Batman: The Brave & The Bold

Naomi Scott

as Talia Al Ghul in Batman: The Brave & The Bold

Ralph Fiennes

as Alfred Pennyworth in Batman: The Brave & The Bold

Emma Myers

as Spoiler in Batman: The Brave & The Bold

Caleb McLaughlin

as Signal in Batman: The Brave & The Bold

Ana de Armas

as Catwoman in Batman: The Brave & The Bold

Sadie Sink

as Batgirl in Batman: The Brave & The Bold

Asher Angel

as Red Robin in Batman: The Brave & The Bold

Gordon Comier

as Robin in Batman: The Brave & The Bold

Ansel Elgort

as Red Hood in Batman: The Brave & The Bold

Wolfgang Novogratz

as Nightwing in Batman: The Brave & The Bold

Dylan O'Brien

as Red Hood in Batman: The Brave & The Bold

Bryan Cranston

as Commisioner Gordon in Batman: The Brave & The Bold

Jensen Ackles

as Batman in Batman: The Brave & The Bold

Andy Muschietti

as Director in Batman: The Brave & The Bold