Suggestions by @millard

Anya Taylor-Joy

as Malachite in Steven Universe

Score: -1

Kristen Bell

as Opal in Steven Universe

Score: -1

Imogen Poots

as Opal in Steven Universe

Score: -1

Kate Micucci

as Pearl in Steven Universe

Score: -1

Natalie Dormer

as Malachite in Steven Universe

Score: +1

Eva Green

as Opal in Steven Universe

Score: +1

Vanessa Kirby

as Opal in Steven Universe

Score: -1

Nicki Minaj

as Sugilite in Steven Universe

Score: +1

Danielle Brooks

as Sugilite in Steven Universe

Score: -1

Amber Riley

as Sugilite in Steven Universe

Score: -1

Katy O'Brian

as Jasper in Steven Universe

Score: +1

Uma Thurman

as Yellow Diamond in Steven Universe

Score: +1

Eris Baker

as Ruby in Steven Universe

Score: +1

Yara Shahidi

as Garnet in Steven Universe

Score: -1

Navia Robinson

as Ruby in Steven Universe

Score: -1

Matthew Lillard

as Greg Universe in Steven Universe

Score: +1

Archie Yates

as Steven Universe in Steven Universe

Score: +1

Elsie Fisher

as Peridot in Steven Universe

Score: +1

Maya Hawke

as Peridot in Steven Universe

Score: -1

Lovie Simone

as Ruby in Steven Universe

Score: -1