Suggestions by @aaronkime

Warwick Davis

as Impossible Man in Marvel's Biggest List of Characters for YOU to cast

Harris Dickinson

as Captain Britain in Marvel's Biggest List of Characters for YOU to cast

Luke Eisner

as Sentry in Marvel's Biggest List of Characters for YOU to cast

Charlie Hunnam

as Beta Ray Bill in Marvel's Biggest List of Characters for YOU to cast

Joe Pesci

as Mole Man in Marvel's Biggest List of Characters for YOU to cast

Cameron Monaghan

as Molecule Man in Marvel's Biggest List of Characters for YOU to cast

Cillian Murphy

as Nightmare in Marvel's Biggest List of Characters for YOU to cast

Aaron Groben

as Ka-Zar in Marvel's Biggest List of Characters for YOU to cast

New Actor

as Habib Ben Hassan in The Authority

Zendaya

as Rose Tattoo in The Authority

Richard Whiten

as Martian Manhunter in The Authority

Olivia DeJonge

as Supergirl in The Perfect Superman Movie

Harrison Ford

as Highfather in James Gunn's DCU cinematic universe

Josh Bowman

as Mister Miracle in James Gunn's DCU cinematic universe

Adam Driver

as Robotman in James Gunn's DCU cinematic universe

John Cena

as Peacemaker in James Gunn's DCU cinematic universe

Felix Avitia

as Beast Boy in James Gunn's DCU cinematic universe

Jannat Zubair Rahmani

as Starfire in James Gunn's DCU cinematic universe

Glen Powell

as Booster Gold in James Gunn's DCU cinematic universe

Richard E. Grant

as Brainiac in James Gunn's DCU cinematic universe