Suggestions by @theupstatenewyorkguy

Bradley Cooper

as Flash in Nolanverse flash

Score: -2

Jessica Chastain

as Iris West in Nolanverse flash

Score: +1

Woody Harrelson

as Jonathan kent in Nolanverse superman

Score: +1

Lea Thompson

as Martha Kent in Nolanverse superman

Score: +1

Mark Strong

as Lex Luther in Nolanverse superman

Score: +1

Edward Norton

as Atomic skull in Nolanverse superman

Score: +1

Joseph Gordon-Levitt

as Jimmy Olsen in Nolanverse superman

Score: +1

Linda Cardellini

as Louis lane in Nolanverse superman

Score: +1

Eion Bailey

as Superman in Nolanverse superman

Score: -2

Jack Dylan Grazer

as Wally West in Scarlet Speedster (Nolanverse Turns to DCEU)

Score: +1

Kayla Maisonet

as Carrie Farris in Green Lantern Corps (Video Game)

Score: +1

Camila Mendes

as Carrie Farris in Green Lantern Corps (Video Game)

Score: -1

Dylan O'Brien

as Kyle Rayner in Green Lantern Corps (Video Game)

Score: +1

Mark Wahlberg

as Guy Gardner in Green Lantern Corps (Video Game)

Score: +1

Mike Colter

as John Stewart in Green Lantern Corps (Video Game)

Score: +1

James Marsden

as Hal Jordan in Green Lantern Corps (Video Game)

Score: +1

Kristen Bell

as Harleen Quinzel in Smallville

Score: +1

Wesley Snipes

as Black Panther in Loki (2001) TV series

Score: +1

Rob Lowe

as Harvey Dent in Batman year one 1992

Score: +2

Crispin Glover

as Harvey Dent in Batman year one 1992

Score: +1