Suggestions by @dickcooper

Jensen Ackles

as Père de Roy in Titans Origins

Frank Grillo

as Deathstroke in Titans Origins

Mikey Madison

as Raven in Nightwing :Tokyo

Sam Witwer

as Batman in Nightwing :Tokyo

Zendaya

as Starfire in Nightwing :Tokyo

Finn Wolfhard

as Beast Boy in Nightwing :Tokyo

Margaret Qualley

as Huntress in Nightwing :Tokyo

Bradley Cooper

as David Cain in Nightwing :Tokyo

Sir Ben Kingsley

as Ra's al Ghul in Nightwing :Tokyo

Katrina Law

as Lady Shiva in Nightwing :Tokyo

Miyako

as Cassandra Cain in Nightwing :Tokyo

Timothée Chalamet

as Nightwing in Nightwing :Tokyo

Anne Hathaway

as Mother Mayhem in Titans Origins

Jude Law

as Brother Blood in Titans Origins

Charlie Bushnell

as Aqualad in Titans Origins

Lola Tung

as Wonder Girl in Titans Origins

Mason Thames

as Speedy in Titans Origins

Walker Scobell

as Kid Flash in Titans Origins

Asher Angel

as Robin in Titans Origins

Evangeline Lilly

as Vicky Vale in Titans : Robin