Suggestions by @jayminotjamie

Jay Oliva

as Director in The Flash

Score: +1

George MacKay

as Barry Allen in The Flash

Score: +1

Ed Skrein

as Captain Cold in The Flash

Score: +1

Adeline Rudolph

as Linda Park in The Flash

Score: +1

Jane Levy

as Iris West in The Flash

Score: +1

Katheryn Winnick

as Black Canary in The Flash

Score: +1

Gillian Jacobs

as The Golden Glider in The Flash

Score: +1

Antony Starr

as Reverse-Flash in The Flash

Score: +1

Lucy Boynton

as Killer Frost in The Flash

Score: +1

Kyle Gallner

as Green Arrow in The Flash

Score: +1

Alan Ritchson

as Heat Wave in The Flash

Score: +1

Jack Champion

as The Flash in The Flash

Score: +1

Louis Leterrier

as Director in Wonder Woman

Score: +1

Frances McDormand

as Martha Kent in Superman: The Man of Tomorrow

Score: +1

Kiersey Clemons

as Lois Lane in Superman: The Man of Tomorrow

Score: +1

Bryan Singer

as Director in DC's Trinity

Score: +1

Billy Zane

as Lex Luthor in DC's Trinity

Score: 0

Blu Hunt

as Artemis in DC's Trinity

Score: +1

Wolfgang Novogratz

as Superman in DC's Trinity

Score: 0

Jake Picking

as Bizarro in DC's Trinity

Score: +1