Suggestions by @kdude

Cyrus Arnold

as Belson in Clarence: Live Action

Ken Jeong

as The Mayor in Clarence: Live Action

Mechad Brooks

as Bald Bull in Punch-Out Movie

Bruce Willis

as Von Kaiser in Punch-Out Movie

Tom Hiddleston

as Glass Joe in Punch-Out Movie

Mike Tyson

as Mike Tyson in Punch-Out Movie

Jordan Peele

as Doc Louis in Punch-Out Movie

Tanner Buchanan

as Little Mac in Punch-Out Movie

Ariana Grande

as Starfire in DCU Teen Titans

Brady Noon

as Beast Boy in DCU Teen Titans

Bo Burnham

as Shaggy in Scooby Doo Live Action

Ben Schwartz

as James in Pokémon (Live-Action)

Walker Scobell

as Ash Ketchum in Pokémon (Live-Action)

Shelby Young

as Colette in Ratatouille

Sebastian Stan

as Cyclops in All the X-Men Characters

Jace Chapman

as Dipper Pines in Gravity Falls

Mace Coronel

as Sumo in Clarence: Live Action

Gregory Mann

as Phineas Flynn in Phineas and Ferb

Cailey Fleming

as Kimby in Clarence: Live Action

Kevin Hart

as Scrappy Doo in Rate my Scooby Doo Fancast