Board Thread:General Discussion/@comment-24100805-20160201152915/@comment-39095632-20190410234131

There are other canonically genderless characters in Undertale like Napstablook, Monster kid and all the other ghosts (except for Mettaton) but people never say that we get to project our own gender onto those characters simply because they are genderless. So i don’t see how it’d be any different when it comes to Frisk and Chara, they both use they/them pronouns and Toby has never confirmed that their gender is up to the player.