Ill make a part two when I'm done with dem ::33333 so this doesn't have all the characters.

Toriel (goat mom)

Asgore (goat dad)

Asriel (goat bro)

Mettaton (attention hog but still my favorite) 

Sans and Papyrus (skeletons that can bleed)

Alphys (a stalker but so adorable)

Undyne (a fish)