Suggestions by @seanbricker

Willem Dafoe

as Cyborg Superman in Superman 1990s

Score: +1

Famke Janssen

as Mercy Graves in Superman 1990s

Score: +1

Campbell Cooley

as Non in Superman 1990s

Score: +1

Clint Eastwood

as Jonathan Kent in Superman 1990s

Score: +1

Rosemary Harris

as Martha Kent in Superman 1990s

Score: +1

James Cromwell

as Sam Lane in Superman 1990s

Score: +1

Fiona Shaw

as Ursa in Superman 1990s

Score: +1

Christoph Waltz

as Metallo in Superman 1990s

Score: +1

Laure Guibert

as Emila hartcourt in The Suicide squad 90s recast

Score: +1

Tom Selleck

as John economic in The Suicide squad 90s recast

Score: +1

Baltasar Kormákur

as Captain Boomerang in The Suicide squad 90s recast

Score: +1

Woody Harrelson

as Rick Flag in The Suicide squad 90s recast

Score: +1

Judy Pace

as Amanda Waller in Justice League 90s

Score: +1

Judy Pace

as Amanda Waller in The Suicide squad 90s recast

Score: +1

Courteney Cox

as Carol Ferris in Justice League 90s

Score: +1

Jim Carrey

as Green Lantern in Justice League 90s

Score: +1

Wes Bentley

as Shazam in Justice League 2000s Universe

Score: +1

Graham Phillips

as Billy Batson in Justice League 2000s Universe

Score: +1

Joel Kinnaman

as Green Arrow in Justice League 2000s Universe

Score: +1

Peter Mensah

as Martian Manhunter in Justice League 2000s Universe

Score: +1