Suggestions by @avenger2590

Gary Oldman

as Commissioner Gordon in Robin: The Dark Knight's Son

Score: +3

Jeremy Irons

as Alfred Pennyworth in Robin: The Dark Knight's Son

Score: +3

Brenton Thwaites

as Nightwing in Robin: The Dark Knight's Son

Score: +4

Xolo Maridueña

as Blue Beetle in Titans V Justice League

Score: +5

Teagan Croft

as Raven in Titans V Justice League

Score: +49

Ryan Potter

as Beast Boy in Titans V Justice League

Score: +6

Emma Watson

as Starfire in Titans V Justice League

Score: -1

Sadie Sink

as Starfire in Titans V Justice League

Score: -2

Elizabeth Olsen

as Starfire in Titans V Justice League

Score: -3

Robert Pattinson

as Batman in The Dark Knight V Robin

Score: +5

Aidan Gallagher

as Robin in The Dark Knight V Robin

Score: +6

Joe Manganiello

as Deathstroke in Robin: The Dark Knight's Son

Score: +3

Joey Indrieri

as Talia Al Ghul in Robin: The Dark Knight's Son

Score: +1

Marion Cotillard

as Talia Al Ghul in Robin: The Dark Knight's Son

Score: +1

Colton Haynes

as Arsenal in The Outlaws

Score: +3

Sadie Sink

as Starfire in The Outlaws

Score: +2

Tara Strong

as Starfire in The Outlaws

Score: 0

Emma Watson

as Starfire in The Outlaws

Score: 0

Scarlett Johansson

as Starfire in The Outlaws

Score: -2

Elizabeth Olsen

as Starfire in The Outlaws

Score: +1