Suggestions by @cyclops

Ludi Lin

as Vaccine Man in One Punch Man

Haley Tju

as Tatsumaki in One Punch Man

Jackie Chan

as Bang in One Punch Man

Sota Fukushi

as Sonic in One Punch Man

Ryan Potter

as Satoru in One Punch Man

Dallas Liu

as Genos in One Punch Man

Henry Golding

as Saitama in One Punch Man

Tan Dun

as Composer in One Punch Man

Wilson Yip

as Writer in One Punch Man

Jon Chu

as Director in One Punch Man

Jeremy Irons

as Nguanzo in Green Lantern/Green Arrow

Ian Abercrombie

as Broome Bon Baris in Green Lantern/Green Arrow

CGI Character

as Herupa in Green Lantern/Green Arrow

CGI

as Pazu Pinder Pol in Green Lantern/Green Arrow

Elisa Gabrielli

as Scar in Green Lantern/Green Arrow

Michael Gambon

as Raug Niad in Green Lantern/Green Arrow

Hugo Weaving

as Appa Ali Apsa in Green Lantern/Green Arrow

Glenn Close

as Sayd in Green Lantern/Green Arrow

Ian McShane

as Ganthet in Green Lantern/Green Arrow

Victor Garber

as Carl Ferris in Green Lantern/Green Arrow