Suggestions by @ chrisdeaver

Tobin Bell

as Jigsaw in Kill-A-Thon

Jacob Tremblay

as Sam in Kill-A-Thon

Brad Dourif

as Chucky in Kill-A-Thon

Bill Skarsgård

as Pennywise in Kill-A-Thon

Roger L. Jackson

as Ghostface in Kill-A-Thon

James Jude Courtney

as Michael Myers in Kill-A-Thon

+5-0Score: +5

Kane Hodder

as Jason Voorhees in Kill-A-Thon

Robert Englund

as Freddy Kruger in Kill-A-Thon

+3-0Score: +3

Chris Netherton

as Bully Bill in SML Movie: Jeffy & Juniors Halloween Party!

+2-2Score: 0

Lovell Stanton

as Joseph in SML Movie: Jeffy & Juniors Halloween Party!

+2-0Score: +2

Chris Netherton

as Cody in SML Movie: Jeffy & Juniors Halloween Party!

Logan Thirtyacre

as Bowser Junior in SML Movie: Jeffy & Juniors Halloween Party!

Lance Thirtyacre

as Jeffy in SML Movie: Jeffy & Juniors Halloween Party!

Chris Netherton

as Brooklyn T. Guy in SML Movie: Bowser Junior's 12th Birthday

Xander Mobus

as Banana Splits Announcer in SML Movie: Bowser Junior's 12th Birthday

James McAvoy

as Snorky in SML Movie: Bowser Junior's 12th Birthday

Jason Sudeikis

as Drooper in SML Movie: Bowser Junior's 12th Birthday

Eric Bauza

as Bingo in SML Movie: Bowser Junior's 12th Birthday

+2-0Score: +2

Bill Farmer

as Fleegle in SML Movie: Bowser Junior's 12th Birthday