Dick Grayson: Brenton Thwaites
Donna Troy: Conor Leslie
Garth: BooBoo Stewart
Roy Harper: Taron Egerton
Hank Hall: Alexander Ludwig
Don Hall: Tye Sheridan
Chesire: Natasha Liu Bordizzo
Dr. Light: Hikari Mori
Mammoth: Stephen Farrelly
Shimmer: Rose Leslie
Deathstroke: Joe Manganiello