Mario/Diary of a Wimpy Kid

Mario as Greg

Luigi as Rowley

King Boo as Roderick

Toadette as Mrs. Heffley

Donkey Kong as Mr. Heffley

Peach as Holly Hills

Toadsworth as Chirag

Wendy O. Koopa as Patty Farrel

Diddy Kong as Grandpa Heffley

Toad as Fregley