Sans.

About Sans

Sans is a character in the 2015 video game Undertale. He is the brother of Papyrus and initially appears as a friendly NPC with an easy-going, laid-back personality. Sans is also featured in the episodic video game Deltarune, where he can primarily be found at his shop, which is a remodeled version of Grillby's Diner from the original game. Sans was created by Toby Fox with support from the artist Temmie Chang. The character's name is based on the Comic Sans font, which is used for most of his in-game dialogue. This sans typeface was replaced with a "cutesy irreverent typeface" in the Japanese version of the game.