Papyrus is eccentric, cranky, childish, flamboyant, naïve, self-absorbed, yet kind, and initially appears to have an inflated ego. He wears a custom-made costume known as his 'battle body', which is made up of a white torso piece with various golden trims (and embroidered with a symbol that very heavily resembles that of the Starman from the Mother series), a rough red scarf or cloth around his neck, red gloves (trimmed with gold), blue briefs with a golden belt, and long red boots. His mouth is in a smile shape most of the time and his eyes are pupil-less, resembling vertical slits with his expressions being formed mostly by his skeletal pseudo-brows. Papyrus is a tall, perhaps anatomically inaccurate skeleton with a skull shaped in a more straight and geometrical structure (in contrast to his brother's more rounded skull). Papyrus makes his home in the city of Snowdin. In his first appearance, Papyrus originally wanted to capture Frisk, but, if they spare him, he will become friends with them. He is a skeleton and the brother of Sans.

He is also a mentioned character in the alternate-universe spin-off Deltarune, and might appear in a future chapter. Papyrus, called the Great Papyrus by himself, is the tritagonist of Undertale, being a major character in the Neutral Route (with his role depending on the ending) and the Genocide Route, and the tritagonist of the True Pacifist Route. ~ Papyrus trying to redeem Frisk during the Genocide Route HOWEVER! I, PAPYRUS SEE GREAT POTENTIAL WITHIN YOU! EVERYONE CAN BE A GREAT PERSON IF THEY JUST TRY! AND ME, I HARDLY HAVE TO TRY AT ALL!!! NYEH HEH HEH! ~ Papyrus encouraging Frisk while Flowey captured them. THAT'S RIGHT, HUMAN! YOU CAN WIN!! JUST DO WHAT I, WOULD DO.BELIEVE IN YOU!!! ~ Papyrus discussing his plans with Sans. I WILL BE THE ONE! I MUST BE THE ONE! I WILL CAPTURE A HUMAN! THEN I, THE GREAT PAPYRUS.WILL GET ALL THE THINGS I UTTERLY DESERVE!

Undertale papyrus x sans streettale