Suggestions by @a9

Chris Tucker

as Toad in Super Mario Bros

Score: -1

Zach Galifianakis

as Mario in Super Mario Bros

Score: +14

Chris Tucker

as Diddy Kong in Super Mario Bros

Score: -3

John Goodman

as Wario in Super Mario Bros

Score: +9

Scarlett Johansson

as Princess peach in untitled súper mario bros

Score: +3

James Franco

as Waluigi in Super Mario Bros

Score: -3

Cameron Diaz

as Princess Peach in Super Mario Bros

Score: +6

Michael Clarke Duncan

as Shrek in The Big Four (Live Action)

Score: -2

Quinton Aaron

as Shrek in The Big Four (Live Action)

Score: -1

Josh Gad

as Mario in untitled súper mario bros

Score: +1

Josh Brolin

as Bowser in untitled súper mario bros

Score: +1

Marlon Wayans

as Agent Shortfuse in The Bad Guys

Score: +2

Kathleen Robertson

as Agent Shortfuse in The Bad Guys

Score: 0

Zachary Levi

as Flynn Rider in The Big Four (Live Action)

Score: -7

Michael McCullers

as Writer in untitled súper mario bros

Score: +1

Josh Brolin

as Bowser in untitled súper mario bros

Score: +1

James Franco

as Waluigi in untitled súper mario bros

Score: +1

Tony Hale

as Yoshi in untitled súper mario bros

Score: +1

Chris Tucker

as Diddy Kong in untitled súper mario bros

Score: +1

Tobey Maguire

as Luigi in untitled súper mario bros

Score: +1