Suggestions by @lorog

Benedict Cumberbatch

as Nuidis Vulko in Aquaman: Rage of Black Manta

Keira Knightley

as Mera in Aquaman: Rage of Black Manta

Steven Yeun

as Dr. Stephen Shin in Aquaman: Rage of Black Manta

Vin Diesel

as King Shark in Aquaman: Rage of Black Manta

Winston Duke

as Black Manta in Aquaman: Rage of Black Manta

Caleb McLaughlin

as Aqualad in Aquaman: Rage of Black Manta

Alexander Skarsgård

as Aquaman in Aquaman: Rage of Black Manta

Ben Kingsley

as Hugo Strange in Batman: Dark Tomorrow

Rachel McAdams

as Julia Madison in Batman: Dark Tomorrow

Alice Braga

as Renee Montoya in Batman: Dark Tomorrow

Bryan Cranston

as James Gordon in Batman: Dark Tomorrow

Iain Glen

as Alfred Pennyworth in Batman: Dark Tomorrow

Alfred Molina

as Penguin in Batman: Dark Tomorrow

James McAvoy

as The Riddler in Batman: Dark Tomorrow

Wyatt Russell

as Two-Face in Batman: Dark Tomorrow

Robert Pattinson

as The Joker in Batman: Dark Tomorrow

Nikolaj Coster-Waldau

as Deathstroke in Batman: Dark Tomorrow

Zain Al Rafeea

as The Boy in Batman: Dark Tomorrow

Tanner Buchanan

as Red Hood in Batman: Dark Tomorrow

Spoiler

as Red Hood in Batman: Dark Tomorrow