Suggestions by @kurtjackson

Patrick Stewart

as Lex Luthor in DC Universe Reboot - Fan Casting

Tom Ellis

as The Joker in DC Universe Reboot - Fan Casting

Mark Hamill

as Rocket Raccoon in Avengers reboot

Woody Harrelson

as Yondu in Avengers reboot

Charlie Hunnam

as Drax in Avengers reboot

Jason Momoa

as Drax in Avengers reboot

Daveed Diggs

as Eric Killmonger in Avengers reboot

Okieriete Onaodowan

as Heimdall in Avengers reboot

John C. McGinley

as Ant-Man in Avengers reboot

Chris Pine

as Green Lantern in DC Universe

Tom Ellis

as The Joker in DC Universe

Jon Hamm

as Batman in DC Universe

Jason Cope

as Groot in Avengers reboot

H. Jon Benjamin

as Rocket Raccoon in Avengers reboot

Charlie Hunnam

as Thor in Avengers reboot

Doug Jones

as Vision in Avengers reboot

Jensen Ackles

as Peter Quill in Avengers reboot

Jared Padalecki

as Bucky Barnes in Avengers reboot

Donald Glover

as Eric Killmonger in Avengers reboot

John Boyega

as T'Challa in Avengers reboot