Suggestions by @bartrocket

Austin O'Brien

as Draco Malfoy, a student in Harry Potter (1990-2000)

Score: +1

Rowan Atkinson

as Snape in Harry Potter (1990-2000)

Score: +1

Joseph Gordon-Levitt

as Neville in Harry Potter (1990-2000)

Score: +1

Thora Birch

as Ginny Weasley in Harry Potter (1990-2000)

Score: +2

Christina Ricci

as Hermione Granger: in Harry Potter (1990-2000)

Score: +2

Joseph Mazzello

as Ron Weasley: in Harry Potter (1990-2000)

Score: +1

Belle Henry

as Ginny Weasley in All American Harry Potter Fancast

Score: +1

Lexi Rabe

as Hermione Granger in All American Harry Potter Fancast

Score: +1

Grant Feely

as Ron Weasley in All American Harry Potter Fancast

Score: +1

Julian Hillard

as Harry Potter in All American Harry Potter Fancast

Score: 0

Ben Savage

as Greg Heffley in Diary Of A Wimpy Kid (1990)

Score: +1

Craig Anton

as Alan Matthews in Boy Meets World (2003-2010)

Score: +1

Britt Robertson

as Topanga Lawrence in Boy Meets World (2003-2010)

Score: +3

Jamie Bell

as Eric Matthews in Boy Meets World (2003-2010)

Score: +3

Luke Roessler

as Cory Mathews in Boy Meets World

Score: +1

Kieran Culkin

as The Kid in The Perfect 90's Christmas Movie

Score: +1

Elijah Wood

as Schwartz in A Christmas Story (1993)

Score: +3

Johnny Depp

as Joker in Dceu Rebooted

Score: +1

Jamie Alexander

as Wonder Woman in Dceu Rebooted

Score: +1