Suggestions by @alex07

Margot Robbie

as Supergirl in Superman

Score: +1

Ludwig Göransson

as Composer in Superman

Score: +1

Anthony Russo

as Producer in Superman

Score: +1

Joe Russo

as Director in Superman

Score: +1

Brennan Lee Mulligan

as Jimmy Olsen in Superman

Score: +1

Tony Plana

as Perry White in Superman

Score: +1

Wolfgang Novogratz

as Kon-El in Superman

Score: +1

Rose Byrne

as Lois Lane in Superman

Score: +1

Jennifer Garner

as Lara Lor-Van in Superman

Score: +1

Billy Zane

as Lex Luthor in Superman

Score: +1

Henry Cavill

as Superman in Superman

Score: +1

Julianne Moore

as Martha Kent in Superman

Score: +1

Gerard Butler

as General Zod in Superman

Score: +1

Rose Byrne

as Lois Lane in Superman

Score: 0

Tom Hanks

as Jonathan Kent in Superman

Score: +1

Nikolaj Coster-Waldau

as Jor-El in Superman

Score: +1

Henry Cavill

as Superman in Superman

Score: 0

Derek Theler

as Guy Gardner in Green Lantern

Score: +1

Idris Elba

as John Stewart in Green Lantern

Score: +1

Jensen Ackles

as Green Lantern in Green Lantern

Score: +1