Suggestions by @nathanholmes

Bradley Cooper

as Ch'P in Green Lantern

Ron Perlman

as Kilowog in Green Lantern

Rose McIver

as Arisia Rrab in Green Lantern

Zoe Saldaña

as Jade in Green Lantern

Mena Massoud

as Simon Baz in Green Lantern

Gina Rodriguez

as Jessica Cruz in Green Lantern

Tyler Posey

as Kyle Reyner in Green Lantern

Alan Ritchson

as Guy Gardner in Green Lantern

Idris Elba

as John Stewart in Green Lantern

Odette Annable

as Star Sapphire in Green Lantern

Jensen Ackles

as Hal Jordan in Green Lantern

John Boyega

as Cyborg in Titans

Noah Schnapp

as Klarion the Witch Boy in Titans

Iain Glen

as Brother Blood in Titans

Nolan North

as The Brain in Titans

Alexandra Shipp

as Blackfire in Titans

Jordan Prentice

as Gizmo in Titans

Priyanka Chopra Jonas

as Jinx in Titans

Kevin Grevioux

as Black Beetle in Titans

Liev Schreiber

as Blockbuster in Titans