Suggestions by @ringothedrummer

Leslie Grace

as Renee Montoya in Batman: Triumphant

Jimmy Smits

as James Gordon in Batman: Triumphant

Nathalie Emmanuel

as Julia Pennyworth in Batman: Triumphant

Jonathan Pryce

as Alfred Pennyworth in Batman: Triumphant

Michael Stuhlbarg

as The Penguin in Batman: Triumphant

Elliot Page

as The Riddler in Batman: Triumphant

Sterling K. Brown

as Two-Face in Batman: Triumphant

Rami Malek

as The Joker in Batman: Triumphant

Keanu Reeves

as Deathstroke in Batman: Triumphant

Zain Al Rafeea

as The Boy in Batman: Triumphant

Xolo Maridueña

as Red Hood in Batman: Triumphant

Spoiler

as Red Hood in Batman: Triumphant

Sofia Boutella

as Talia al Ghul in Batman: Triumphant

Shaun Toub

as Ra's al Ghul in Batman: Triumphant

Ray Fisher

as Batwing in Batman: Triumphant

Anna Cathcart

as Batgirl in Batman: Triumphant

Hunter Schafer

as Batwoman in Batman: Triumphant

Ana de Armas

as Poison Ivy in Batman: Triumphant

Mahershala Ali

as Deadshot in Batman: Triumphant

Lucy Boynton

as Harley Quinn in Batman: Triumphant