Suggestions by @mrstaron127

Jennifer Laura Thompson

as Tiffany (Fiona's Wife) in Sing 3

Score: +1

Jessica Phillips

as Fiona in Sing 3

Score: +1

Dolly Parton

as Petunia in Sing 3

Score: +1

Emma Berman

as Talia Schultz in O Brother, How I Love Thee

Score: +1

Emma Berman

as Lily (Princeton's Little Sister) in Sing 3

Score: +1

Saoirse Ronan

as Jillian (Pete's Daughter) in Sing 3

Score: +1

Bette Midler

as Annie Angeles in Sing 3

Score: 0

Meg Donnelly

as Barbra in Sing 3

Score: +2

Milo Manheim

as Lucas in Sing 3

Score: +2

Andrew Barth Feldman

as Princeton in Sing 3

Score: +1

Garth Jennings

as Miss Crawly in Sing 3

Score: +4

Nick Kroll

as Gunther in Sing 3

Score: +4

Tori Kelly

as Meena in Sing 3

Score: +6

Taron Egerton

as Johnny in Sing 3

Score: +6

Scarlett Johansson

as Ash in Sing 3

Score: +3

Reese Witherspoon

as Rosita in Sing 3

Score: +5

Matthew McConaughey

as Buster Moon in Sing 3

Score: +5

Emma Thomas

as Producer in O Brother, How I Love Thee

Score: +1

Baz Luhrmann

as Director in O Brother, How I Love Thee

Score: +1

Andrew Barth Feldman

as Jesse Schultz in O Brother, How I Love Thee

Score: +1