Suggestions by @bartrocket

Martin Short

as Willy Wonka in Charlie and the Chocolate Factory (1995)

Score: +2

Tina Majorino

as Violet Beauregarde in Charlie and the Chocolate Factory (1995)

Score: +2

Bug Hall

as Charlie Bucket in Charlie and the Chocolate Factory (1995)

Score: -1

Miko Hughes

as Luke Dunphy in Modern Family (1995-2006)

Score: +1

Rupert Grint

as Percy in The Perfect Thomas and Friends Movie

Score: +1

Simon Pegg

as James in The Perfect Thomas and Friends Movie

Score: +2

Peter Fonda

as In Memoriam in The Perfect Thomas and Friends Movie

Score: +4

Jonathan Taylor Thomas

as Gabe Duncan in Good Luck Charlie ('90s)

Score: +1

Tim Robbins

as Mr. Bucket in Charlie and The Chocolate Factory (1993)

Score: +1

Veronica Lauren

as Violet Beauregard in Charlie and The Chocolate Factory (1993)

Score: +1

Robin Williams

as Willy Wonka in Charlie and The Chocolate Factory (1993)

Score: +1

Mike Pollock

as Dr. Robotnik in Best Portrayal of a Character

Score: +10

Ryan Drummond

as Sonic in Best Portrayal of a Character

Score: +5

Tim Allen

as Santa Clause in Best Portrayal of a Character

Score: +9

Edward Furlong

as Marty McFly (1995) in Actors who could play Marty McFly in different years

Score: +2

Austin O'Brien

as Scut Farkus in A Christmas Story (1993)

Score: 0

Paul Rudd

as Jim Halpert in The Office (1995-2003)

Score: +7

Ewan McGregor

as Barney Stinson in How I Met Your Mother (1996-2005)

Score: +1

Chandler Riggs

as Kevin Mccallister in Home Alone Reboot 2010

Score: +1

John C. Reilly

as Marvin Merchants in Home Alone (2015)

Score: +1