Suggestions by @riotxvl

BD Wong

as "The Biologist" in The Flash: Warmup

Spoiler

as "The Biologist" in The Flash: Warmup

Donald Glover

as "The Engineer" in The Flash: Warmup

Spoiler

as "The Engineer" in The Flash: Warmup

Edgar Wright

as Director in The Flash: Warmup

John Stamos

as Henry Allen in The Flash: Warmup

Navid Negahban

as David Singh in The Flash: Warmup

Alden Ehrenreich

as Green Lantern in The Flash: Warmup

Claire Holt

as Lisa Snart in The Flash: Warmup

Anthony Ramos

as Cisco Ramon in The Flash: Warmup

William Zabka

as Darryl Frye in The Flash: Warmup

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