Suggestions by @lsprengel

Shawn Mendes

as Jackson Tremblay in The World Protectors

Score: +1

Thomas Brodie-Sangster

as Brian's Nissan Skyline in Movie and TV Vehicles as Transformers

Score: +1

Curran Walters

as Jason Todd in Actors that could play Red Hood in DCEU

Score: -2

Nicholas Galitzine

as Hunter in The Owl House (Live Action Adaptation)

Score: 0

Cameron Monaghan

as Kid Flash in Flash movie (fan version DCEU)

Score: +1

George MacKay

as Flash in Flash movie (fan version DCEU)

Score: +1

Tom Hiddleston

as Captain Britain in Captain Britain MCU

Score: -2

Dominic Purcell

as Heat Wave in Flash movie (fan version DCEU)

Score: +1

Grant Gustin

as Flash in Flash movie (fan version DCEU)

Score: +1

KJ Apa

as Kid Flash in Flash movie (fan version DCEU)

Score: +1

Tom Holland

as StreetTread in Transformers: StreetTread's Adventures

Score: +1

Aiden Gillen

as Bill in The World Protectors

Score: +1

Idris Elba

as Oni's Father in The World Protectors

Score: +1

Ryan Potter

as Beast boy in Justic League Vs Teen Titans ( Live Action)

Score: +1

Bryan Cranston

as Cycronics in The World Protectors

Score: +1

James Spader

as Cronodron in The World Protectors

Score: +1

Darren Criss

as Sideswipe in Transformers: StreetTread's Adventures

Score: +1

Jake Gyllenhaal

as Sideways in Transformers: StreetTread's Adventures

Score: +1

Daran Norris

as Knockout in Transformers: StreetTread's Adventures

Score: -1

Lorenzo Richelmy

as Dino in Transformers: StreetTread's Adventures

Score: 0