Suggestions by @bartrocket

Floyd Roger Myers Jr.

as Lucas Sinclair in Stranger Things (1993-1997)

Score: +1

Ben Savage

as Dustin Henderson in Stranger Things (1993-1997)

Score: +1

Elijah Wood

as Will Byers in Stranger Things (1993-1997)

Score: +1

George Clooney

as Batman in The DC Universe (1990s)

Score: +1

Frankie Muniz

as Marty McFly in Back to the Future (2005)

Score: +2

Desirée Goyette

as Nermal in The Garfield Movie (1984)

Score: +1

Julie Payne

as Liz Wilson in The Garfield Movie (1984)

Score: +1

Patrick Renna

as Augustus Gloop in Charlie And The Chocolate Factory (1991)

Score: +1

Veronica Lauren

as Violet Beauregarde in Charlie And The Chocolate Factory (1991)

Score: +1

Robert Hy Gorman

as Mike Teevee in Charlie And The Chocolate Factory (1991)

Score: +2

Johnathan Brandis

as George Cooper Jr in Young Sheldon (1989-1996)

Score: +2

Gaby Hoffmann

as Missy Cooper in Young Sheldon (1989-1996)

Score: +3

Macaulay Culkin

as Sheldon Cooper in Young Sheldon (1989-1996)

Score: +2

Eric Stoltz

as Luke Skywalker in Star Wars Original Trilogy (1987-1993)

Score: +3

Gregory Smith

as Milton Baines in Back to The Future - [1995-2000]

Score: +1

Mara Wilson

as Dorothy Gale in The Wizard of Oz (1999)

Score: +2

Olivia Hack

as Lisa Simpson in The Simpsons Movie (Live Action, 1991)

Score: +1

Thomas F. Wilson

as Irving "Kid" Tannen in Back to the Future: The Game (90s)

Score: +1

Christina Ricci

as Hermione Granger in Harry Potter and the Sorcerer's Stone (1991)

Score: +1

Joseph Mazzello

as Ron Weasley in Harry Potter and the Sorcerer's Stone (1991)

Score: +1