Suggestions by @aaronkime

David Harewood

as Lucius Fox in Brave and the Bold

RackaRacka

as Director in Brave and the Bold

Susan Sameh

as Talia Al Ghul in Brave and the Bold

Tony Leung Chiu-wai

as Ra’s Al Ghul in Brave and the Bold

Harris Dickinson

as Jean-Paul Valley in Brave and the Bold

Joel Edgerton

as Jim Gordon in Brave and the Bold

Kensington Tallman

as Barbara Gordon in Brave and the Bold

Brady Noon

as Jason Todd in Brave and the Bold

D'Pharaoh Woon-A-Tai

as Dick Grayson in Brave and the Bold

Paterson Joseph

as Alfred Pennyworth in Brave and the Bold

D'Pharaoh Woon-A-Tai

as Nightwing in Casting James Gunn's DCU! :D

D'Pharaoh Woon-A-Tai

as Nightwing in James Gunn's DC Cinematic Universe

Emma Myers

as Luornu Durgo/Triplicate Girl in DC Cinematic Casting Universe

Joel Edgerton

as Commissioner James Gordon in James Gunn’s DC Universe

Jessica Rothe

as Dr. Harleen Quinzel in James Gunn’s DC Universe

Eleanor Tomlinson

as Dr. Pamela Isley in James Gunn’s DC Universe

Marcus Johnson

as J'onn J'onzz in James Gunn’s DC Universe

Chris Hemsworth

as Arthur Curry in James Gunn’s DC Universe

Madelyn Cline

as Iris West in James Gunn’s DC Universe

Karl Urban

as Slade Wilson in James Gunn’s DC Universe