Suggestions by @dickcooper

Brad Pitt

as Sportsmaster in Nightwing

Ming-Na Wen

as Tigress in Nightwing

Chris Zylka

as Captain Boomerang in Nightwing

Hill Harper

as Marcus Steele in Nightwing

Charlie Sheen

as Anthony Ivo in Nightwing

Evangeline Lilly

as Elena Kitty in Nightwing

Luke Wilson

as Antoine Kitty in Nightwing

Dov Tiefenbach

as Gizmo in Nightwing

Kimberly-Sue Murray

as Lady Vic in Nightwing

Demore Barnes

as Billy Wintegreen in Nightwing

Ben Barnes

as Rick Flagg in Nightwing

Johnny Depp

as Count Vertigo in The Outsiders

Tisha Campbell

as Lynn Stewart in The Outsiders

Sofia Wylie

as Lightning in The Outsiders

Chloe Bailey

as Thunder in The Outsiders

Esai Morales

as Deathstroke in The Outsiders

Anthony Starr

as Reverse Flash in The Outsiders

Nolan North

as Blue Devil in Raven

Jacob Elordi

as Mirror Master II in The Flash

Despero

as Despero in The Flash