Suggestions by @jackoreilly

Timothy Olyphant

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

Michael Shannon

as Black Mask in Casting James Gunn's DCU! :D

Tómas Lemarquis

as Victor Zszaz in Casting James Gunn's DCU! :D

Matthew Gray Gubler

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

Glenn Howerton

as The Joker in Casting James Gunn's DCU! :D

Kiera Allen

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

Diane Kruger

as Faora-Ul in Casting James Gunn's DCU! :D

Charlie Bushnell

as Tim Drake in DCU Bat Family

Karen Gillan

as Doris Zuel in DCU Legion of Doom

Saxon Sharbino

as Karen Starr / Kara Zor-L in DCU Justice Society of America

Dakota Fanning

as Silver Banshee in DCU Superman Rogues Gallery

Reneé Rapp

as Livewire in DCU Superman Rogues Gallery

Diane Kruger

as Faora-Ul in DCU Superman Rogues Gallery

Topher Grace

as Angelo Bend in DCU Wonder Woman Rogues

Ken Jeong

as Chang Tzu in DCU Wonder Woman Rogues

Asia Kate Dillon

as Eris in DCU Wonder Woman Rogues

Jaimie Alexander

as Grail in DCU Wonder Woman Rogues

Daniel Brühl

as Dolos in DCU Wonder Woman Rogues

Francesco Martino

as Angelo Bend in DCU Wonder Woman Rogues

Michelle Trachtenberg

as Baroness Paula von Gunther in DCU Wonder Woman Rogues