Suggestions by @rowenjackson

Satoru Iwata

as Satoru Iwata in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Satoru Iwata (Still Alive if future castings need him)

as Satoru Iwata in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Frank Welker

as Jerry Mouse in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Jeff Bennett

as Tom Cat in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Mr. Lawrence

as Spike in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Andrew Sabiston

as Yoshi in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Joe Alaskey

as Marvin the Martian in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Carolyn Lawrence

as Sandy Cheeks in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Charles Martinet

as Meowth in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Mr. Lawrence

as Pikachu in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Jim Cummings

as Tazmanian Devil in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Billy West

as Thomas in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Bruce Lanoil

as Brock in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Jim Cummings

as Wario in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Tress MacNeille

as Penelope Pussycat in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Greg Burson

as Pepe Le Pew in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Mr. Lawrence

as Plankton in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Greg Burson

as Wile E. Coyote in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Paul Julian

as Road Runner in Disney's Super Mario Bros. + Looney Tunes: Back in Action

Charles Martinet

as Dr. Robotnik in Disney's Super Mario Bros. + Looney Tunes: Back in Action