Sans- Freddy (hat, ears, and bowtie)

Papyrus- Bonnie (ears and bowtie)

Yours truly- Marionette

Toriel- Chica (she has the bib)

Undyne- Foxy (his ears)

Mettaton- Toy Bonnie (blush and bow)

Alphys- Toy Chica (blush and bib)

Monster Kid- BB (has balloon around waist, and hat)

Gaster- Mangle (just broken up, no makeup)

Asgore- Toy Freddy (hat, ears, bowtie)

You guys and gals- the night guards

Cupcake- a slice of butterscotch cinnamon pie

(Don't worry we're all friends in this)