Suggestions by @mr_blue_sky

Spoiler

as The Archeologist in Martian Manhunter: Alien Atlas

David Schwimmer

as Officer Jared Anderson in Martian Manhunter: Alien Atlas

Jeffrey Donovan

as Officer Cade Malcolm in Martian Manhunter: Alien Atlas

Alec Baldwin

as Captain Joe Harding in Martian Manhunter: Alien Atlas

Neill Blomkamp

as Producer in Martian Manhunter: Alien Atlas

Hans Zimmer

as Composer in Martian Manhunter: Alien Atlas

Emmanuel Lubezki

as Cinematographer in Martian Manhunter: Alien Atlas

Barry Jenkins

as Director in Martian Manhunter: Alien Atlas

Mr. Blue Sky

as Writer in Martian Manhunter: Alien Atlas

Melody Nosipho Niemann

as K'hym J'onzz in Martian Manhunter: Alien Atlas

Taylor Russell

as M'yri'ah J'onzz in Martian Manhunter: Alien Atlas

Martian Manhunter

as Live Action Charecters in Which Characters Lakeith Stanfield Should Play?

Donald Glover

as Malefic in Martian Manhunter: Alien Atlas

Daniel Kaluuya

as Ma'alefa'ak in Martian Manhunter: Alien Atlas

Brian Cox

as Dr. Saul Erdel in Martian Manhunter: Alien Atlas

LaKeith Stanfield

as Martian Manhunter in Martian Manhunter: Alien Atlas

Will Ferrell

as Jonathan Chase in Will Ferrell Manimal (2015)

Robert Plant

as Legolas in Stanley Kubrick's The Lord of the Rings (1968)

Ralph Fiennes

as Colonel Paul Monteford in Bloodhound

Henry Cavill

as Frank Andrews in Bloodhound