Suggestions by @mycasteeeeeeeee

Jon Hamm

as Thaal Sinestro in Green Lantern Corps

Rami Malek

as Kyle Rayner in Green Lantern Corps

Eric Johnson

as Alan Scott in Green Lantern Corps

Kristen Stewart

as Batwoman in Worlds Of DC (DCEU)

Alice Braga

as Pamela Isley/ Penelope Irving in The Suicide Squad

John Cena

as Ben Grimm in Fantastic Four (MCU)

Emily Blunt

as Sue Storm in Fantastic Four (MCU)

Zac Efron

as Johnny Storm in Fantastic Four (MCU)

John Krasinski

as Reed Richards in Fantastic Four (MCU)

Elijah Wood

as Spyro in Elite Cinematic Universe

Ross Marquand

as Red Skull in MCU Villains vs DCEU Villains

Jesse Eisenberg

as Lex Luthor in MCU Villains vs DCEU Villains

Jeff Bridges

as Iron Monger in MCU Villains vs DCEU Villains

Jared Leto

as Joker in MCU Villains vs DCEU Villains

Steven Seagal

as Galactus in Uncasted Marvel Villains

Bryan Cranston

as Green Goblin in Uncasted Marvel Villains

Viggo Mortensen

as Magneto in Uncasted Marvel Villains

Nikolaj Coster-Waldau

as Doctor Doom in Uncasted Marvel Villains

Charlie Plummer

as Adam Warlock in Marvel Cinematic Universe

Charlie Heaton

as Cannonball in MCU Fan Casting