Suggestions by @steelsheik

Nell Fisher

as Emilia Clarke in Doppelgängers

Score: +1

Sadie Sink

as Rachel Summers in A-Force

Score: +1

Gracyn Shinyei

as Young Shelley Cooper in Big Bang Theory - Gender Reversed (2007)

Score: +1

Benedict Cumberbatch

as Dr. Stephen Strange in Avengers

Score: +2

Chris Hemsworth

as Thor Odinson in Avengers

Score: +1

Danny Ramirez

as Joaquín Torres in Avengers

Score: +2

Anthony Mackie

as Sam Wilson in Avengers

Score: +2

Sebastian Stan

as Bucky Barnes in Avengers

Score: +2

Hannah John-Kamen

as Ava Starr in Avengers

Score: +2

Wyatt Russell

as John Walker in Avengers

Score: +2

David Harbour

as Alexei Shostakov in Avengers

Score: +1

Lewis Pullman

as Bob Reynolds in Avengers

Score: +1

Florence Pugh

as Yelena Belova in Avengers

Score: +2

Robert Downey Jr.

as Victor von Doom in Avengers

Score: +1

Mckenna Grace

as Valeria Richards in Avengers

Score: +1

Christian Convery

as Franklin Richards in Avengers

Score: +1

Walker Scobell

as Franklin Richards in Avengers

Score: +2

Ebon Moss-Bachrach

as Ben Grimm in Avengers

Score: +1

Joseph Quinn

as Johnny Storm in Avengers

Score: +1

Pedro Pascal

as Reed Richards in Avengers

Score: +1