Suggestions by @silvermoth

Dario Marianelli

as Composer in Discworld

David Kerr

as Director in Discworld

Jake Choi

as Annihilius in Fantastic Four with a non white cast

Jake Choi

as Annihilius in Fantastic Four with a non white cast

Mena Massoud

as Silver Surfer in Fantastic Four with a non white cast

Christopher Judge

as Galactus in Fantastic Four with a non white cast

Will Yun Lee

as Annihilius in Fantastic Four with a non white cast

Adrian Lester

as Black Bolt in Fantastic Four with a non white cast

John Leguizamo

as Mole Man in Fantastic Four with a non white cast

Tiffany Haddish

as Medusa in Fantastic Four with a non white cast

Paul Sun-Hyung Lee

as HERBIE in Fantastic Four with a non white cast

Keith David

as Doctor Doom in Fantastic Four with a non white cast

Ana de Armas

as The Invisible Woman in Fantastic Four with a non white cast

Natalia Reyes

as The Invisible Woman in Fantastic Four with a non white cast

Michael Cimino (actor)

as The Human Torch in Fantastic Four with a non white cast

Daveed Diggs

as The Thing in Fantastic Four with a non white cast

Rahul Kohli

as Mr Fantastic in Fantastic Four with a non white cast

Daniel Dae Kim

as Namor in Fantastic Four with a non white cast

Diego Boneta

as Legolas in Hispanic Lord of the Rings

Patterson Joseph

as Alistair Hennessy in The Life Aquatic with Steve Zissou (black cast)