Suggestions by @riotxvl

Wyatt Russell

as Heat Wave in The Flash: Warmup

Ed Skrein

as Captain Cold in The Flash: Warmup

Zoey Deutch

as Iris West in The Flash: Warmup

Adam Copeland

as Lobo in DC Movie Universe Villains

Adrien Brody

as Scarecrow in DC Movie Universe Villains

Spoiler

as "The CSI" in Green Lantern: Emerald Dawn

Christoph Waltz

as "The Guardian" in Green Lantern: Emerald Dawn

Spoiler

as "The Guardian" in Green Lantern: Emerald Dawn

Joseph Kosinski

as Director in Green Lantern: Emerald Dawn

Josh Dallas

as Martin Jordan in Green Lantern: Emerald Dawn

Jacob Fortune-Lloyd

as Jason Kane in Green Lantern: Emerald Dawn

Vincent Cassel

as Conrad Bloch in Green Lantern: Emerald Dawn

Imelda Staunton

as Scar in Green Lantern: Emerald Dawn

Charles Dance

as Appa Ali Apsa in Green Lantern: Emerald Dawn

Sigourney Weaver

as Sayd in Green Lantern: Emerald Dawn

Bill Nighy

as Ganthet in Green Lantern: Emerald Dawn

Faran Tahir

as Abin Sur in Green Lantern: Emerald Dawn

Ralph Macchio

as Carl Ferris in Green Lantern: Emerald Dawn

Nina Dobrev

as Carol Ferris in Green Lantern: Emerald Dawn

Simon Pegg

as Tomar-Re in Green Lantern: Emerald Dawn