Suggestions by @jacksonross

Vlad the Impaler

as Chungu in Lion King

Vilgax (Ben 10)

as Cheezi in Lion King

Enderman

as Janja in Lion King

Master Oogway

as Makuu in Lion King

Fluttershy

as Wema in Lion King

Bumble the Abominable Snow Monster

as Tunu in Lion King

Coleman Trebor

as Jasiri in Lion King

Rarity

as Kion in Lion King

Twilight Sparkle

as Tazama in Lion King

Shere Khan

as Imara in Lion King

Gus Gorilla

as Kasi in Lion King

Lightning McQueen

as Shabaha in Lion King

William Shatner

as Wart in Mario movie 2

Sean Chiplock

as Mask Gate in Mario movie 2

Javier Bardem

as Clawgrip in Mario movie 2

John Cleese

as SF Fry Guy in Mario movie 2

Tom Kenny

as Fryguy in Mario movie 2

Christopher Lloyd

as Tryclyde in Mario movie 2

Michael Palin

as Mouser in Mario movie 2

David Ogden Stiers

as Flurry in Mario movie 2