Suggestions by @kevindolan

Sam Kinison

as Roz in Monsters, Inc. (1991)

Score: +3

Kirk Douglas

as Henry J. Waternoose III in Monsters, Inc. (1991)

Score: +3

Susan Sarandon

as Celia Mae in Monsters, Inc. (1991)

Score: +3

Austin Pendleton

as Michael "Mike" Wazowski in Monsters, Inc. (1991)

Score: +3

Joe Pesci

as Michael "Mike" Wazowski in Monsters, Inc. (1991)

Score: +5

Charlton Heston

as Henry J. Waternoose III in Monsters, Inc. (1991)

Score: +3

James Woods

as Randall Boggs in Monsters, Inc. (1991)

Score: +5

Sarah Jessica Parker

as Princess Toadstool in The Super Mario Bros. Movie (1993)

Score: +1

Tracey Moore

as Princess Toadstool in The Super Mario Bros. Movie (1993)

Score: +1

Alfred Molina

as Bowser in The Super Mario Bros Duology (2003- 2006)

Score: +3

Tony Jay

as King Bowser in The Super Mario Bros. Movie (1993)

Score: +1

Nick Nolte

as King Bowser in The Super Mario Bros. Movie (1993)

Score: +2

Harry Shearer

as Kamek in The Super Mario Bros. Movie (1993)

Score: +1

Frank Oz

as Kamek in The Super Mario Bros. Movie (1993)

Score: +1

Peter Falk

as Cranky Kong in The Super Mario Bros. Movie (1993)

Score: +1

Wallace Shawn

as Kamek in The Super Mario Bros. Movie (1993)

Score: +1

Stuart Pankin

as Donkey Kong in The Super Mario Bros. Movie (1993)

Score: +1

Sherman Hemsley

as King Bowser in The Super Mario Bros. Movie (1993)

Score: +1

Jack Nicholson

as King Bowser in The Super Mario Bros. Movie (1993)

Score: +3

Garry Shandling

as Luigi in The Super Mario Bros. Movie (1993)

Score: +1