Suggestions by @bosuthebluehedgehog

Seann William Scott

as Booster Gold in Who Should Play Booster Gold?

Claudia Doumit

as Wonder Woman in The DCU Wonder Woman

Sam Witwer

as Batman in The DCU Batman

Ross Lynch

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

Jack Dylan Grazer

as Beast Boy in Casting James Gunn's DCU! :D

Alan Tudyk

as Future Actors Of Vision After The Reboot Of The MCU. in Future Actors Of Vision After The Reboot Of The MCU.

Ethan Hawke

as Doctor Fate in DCEU Rebooted

Camila Mendes

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

Tom Hardy

as Etrigan the Demon in Casting James Gunn's DCU! :D

Jeremy Allen White

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

Nick Robinson

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

Josh Hutcherson

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

Ryan Potter

as Ryan Choi in Casting James Gunn's DCU! :D

Freddie Prinze Jr.

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

Jamie Bell

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

Kumail Nanjiani

as Mister Miracle in Casting James Gunn's DCU! :D

Claudia Doumit

as Wonder Woman in Casting James Gunn's DCU! :D

Megan Gale

as Big Barda in Casting James Gunn's DCU! :D

Dan Stevens

as John Constantine in Casting James Gunn's DCU! :D

Miles Teller

as Kyle Rayner in Casting James Gunn's DCU! :D