Suggestions by @kriskringle

Tim Roth

as Sandman in Quentin Tarantino’s The Justice Society of America (2006)

Score: +1

Kurt Russell

as The flash in Quentin Tarantino’s The Justice Society of America (2006)

Score: +1

Christoph Waltz

as Doctor Fate in Quentin Tarantino’s The Justice Society of America (2006)

Score: +1

Leonardo DiCaprio

as Hourman in Quentin Tarantino’s The Justice Society of America (2006)

Score: +1

Sonny Chiba

as The dragon king in Quentin Tarantino’s The Justice Society of America (2006)

Score: +1

Jacob Elordi

as Atom Smasher in JSA (World Of DC)

Score: +1

Bruce Greenwood

as Jay Garrick in DC's Wally West: The Flash

Score: +2

David Corenswet

as Dick Grayson in DC's Wally West: The Flash

Score: -2

Jake Gyllenhaal

as Batman in The Flash (2002)

Score: +1

Jon Hamm

as Superman 89 in The Flash (2002)

Score: -2

Antony Starr

as Reverse Flash in The Flash (2002)

Score: +1

Pierce Brosnan

as Batman (Earth-89) in The Flash (2002)

Score: 0

Iain Glen

as Alan Scott in The Flash (2002)

Score: 0

Glen Powell

as The flash in The Flash (2002)

Score: 0

Alison Brie

as Star Sapphire in Green Lantern (DCEU)

Score: -1

Sofia Carson

as Green Lantern # 3 in Green Lantern (DCEU)

Score: -3

Jude Law

as Sinestro in Green Lantern (DCEU)

Score: 0

Jovan Adepo

as Green Lantern # 2 in Green Lantern (DCEU)

Score: -3

John Krasinski

as Green Lantern # 1 in Green Lantern (DCEU)

Score: -1

Emma Watson

as Mera in DC Cinematic Universe

Score: +1