This is ask Undertale! Put in your Q’s in the comments and I’ll try to give the most accurate response! The characters are:
Frisk
Flowey
Toriel
Sans
Papyrus
Undyne
Alphys
Mettaton (EX)
Asgore
(Depending on the questions: Chara, Gaster)
Hope you enjoy this! I’ll try to respond as fast as I can!
Please insert in the comments what you would like the characters to address you as (nickname, name etc.)