Suggestions by @kittyscissorpaws

Lani Minella

as Cull Obsidian in Avengers: Infinity War (gender swap)

Score: +1

Columbus Short

as Shuri in Avengers: Infinity War (gender swap)

Score: +1

Anna Kendrick

as Peter Quill in Avengers: Infinity War (gender swap)

Score: -1

Connie Nielsen

as The Collector in Avengers: Infinity War (gender swap)

Score: +2

Nick Carter

as Pepper Potts in Avengers: Infinity War (gender swap)

Score: 0

Ashley Johnson

as Rocket in Avengers: Infinity War (gender swap)

Score: +1

Lani Minella

as Groot in Avengers: Infinity War (gender swap)

Score: 0

Sandra Bullock

as Drax in Avengers: Infinity War (gender swap)

Score: -1

Zac Efron

as Mantis in Avengers: Infinity War (gender swap)

Score: -2

Renée Elise Goldsberry

as Wong in Avengers: Infinity War (gender swap)

Score: 0

Julia Campbell

as Eitri in Avengers: Infinity War (gender swap)

Score: +1

Russell Hornsby

as Okoye in Avengers: Infinity War (gender swap)

Score: +1

Tasha Smith

as Heimdall in Avengers: Infinity War (gender swap)

Score: +1

Anne Hathaway

as Bucky Barnes in Avengers: Infinity War (gender swap)

Score: -1

Sanaa Lathan

as Sam Wilson in Avengers: Infinity War (gender swap)

Score: 0

Columbus Short

as Sam Wilson in Avengers: Infinity War (gender swap)

Score: -1

Zack Ward

as Wanda Maximoff in Avengers: Infinity War (gender swap)

Score: -2

Keira Knightley

as Vision in Avengers: Infinity War (gender swap)

Score: -1

Rosa Salazar

as Loki in Avengers: Infinity War (gender swap)

Score: 0

Ross Malinger

as Nebula in Avengers: Infinity War (gender swap)

Score: -2