Suggestions by @kylahross

Sean Kaufman

as Jem Carstairs in TID

Score: +1

Gavin Casalegno

as Will Herondale in TID

Score: +1

Àstrid Bergès-Frisbey

as Tessa Gray in TID

Score: +1

Mackenzie Foy

as Tessa Gray in TID

Score: +1

Madeline Carroll

as Tessa Gray in TID

Score: -1

Gavin Casalegno

as William Herondale in The Infernal Devices

Score: 0

Joshua Brand Anthony

as William Herondale in The Infernal Devices

Score: -2