Suggestions by @geekking97

Bryan Cranston

as Commissioner James Gordon (Flashbacks) in Batman Beyond Live Action (2010s)

Terence Stamp

as Alfred Pennyworth (Flashbacks) in Batman Beyond Live Action (2010s)

Lauren Cohen

as Inque in Batman Beyond Live Action (2010s)

Missy Peregrym

as Princess Diana/Wonder Woman (Flashbacks) in Batman Beyond Live Action (2010s)

Kate Beckinsale

as Circe (Flashbacks) in Batman Beyond Live Action (2010s)

Daniel Craig

as Dr. Victor Fries/Mr. Freeze (Flashbacks) in Batman Beyond Live Action (2010s)

Tony Sirico

as Carmine Falcone in Batman DCCU (2010s)

Tony Sirico

as Carmine Falcone (Flashbacks) in Batman Beyond Live Action (2010s)

Jessica Biel

as Mercedes "Mercy" Graves (Flashbacks) in Batman Beyond Live Action (2010s)

Billy Zane

as Lex Luthor (Flashbacks) in Batman Beyond Live Action (2010s)

Erin Moriarty

as Kara Kent/Supergirl (Flashbacks) in Batman Beyond Live Action (2010s)

James Wolk

as Clark Kent/Superman (Flashbacks) in Batman Beyond Live Action (2010s)

Hayley Atwell

as Poison Ivy (Flashbacks) in Batman Beyond Live Action (2010s)

Charlie Rowe

as Tim Drake (Old) in Batman Beyond Live Action (2010s)

Katherine McNamara

as Commissioner Barbra Gordon in Batman Beyond Live Action (2010s)

Katherine McNamara

as Barbra Gordon/Batgirl (Flashbacks) in Batman Beyond Live Action (2010s)

Miles Teller

as Jason Todd/Robin II (Flashbacks) in Batman Beyond Live Action (2010s)

Charlie Rowe

as Tim Drake/Robin III (Flashbacks) in Batman Beyond Live Action (2010s)

Anson Mount

as Bruce Wayne/Batman (Flashbacks) in Batman Beyond Live Action (2010s)

David Tennant

as Dr. Jonathan Crane/Scarecrow (Flashbacks) in Batman Beyond Live Action (2010s)