Suggestions by @laceyn

Amber Heard

as Daphne Greengass in Harry Potter (HBO Max Series)

Score: -4

Amanda Tapping

as Professor McGonagall in Harry Potter (HBO Max Series)

Score: -39

Elle Fanning

as Maurecia Millers in Sideway Stories from Wayside School (2023)

Score: +2

Elle Graham

as Allison Thompson in Sideway Stories from Wayside School (2023)

Score: +2

Dakota Johnson

as Vala Mal Doran in Stargate (Movie Remake)

Score: +1

Florence Pugh

as Dr. Samantha Carter in Stargate (Movie Remake)

Score: -1

Elle Graham

as Alessandra in Codename Kids Next Door

Score: +2

Daphne Hoskins

as Young Lily in The Marauders

Score: -3

Olivea Morton

as Young Lily in The Marauders

Score: +3

Joe Flanigan

as Best Actor in Best & Worst of Sci-Fi

Score: +3

Torri Higginson

as Best Actress in Best & Worst of Sci-Fi

Score: +2

Kate Mara

as Elizabeth weir in Stargate (2020 version)

Score: +2

Chris Evans

as Zach in SpaceCamp

Score: +1

Jonathan Bennett

as Zach in SpaceCamp

Score: -1

Kate Mara

as Andie in SpaceCamp

Score: +1

Sienna Hiko

as Bianca di Angelo in 🔱Percy Jackson and the Olympians🔱

Score: +1

Brooklyn Prince

as Bianca di Angelo in 🔱Percy Jackson and the Olympians🔱

Score: +2

Thaddeaus Ek

as Kevin in SpaceCamp

Score: +1

Luke Dodge

as Max in SpaceCamp

Score: +1

Elle Graham

as Tish in SpaceCamp

Score: +2