Frisk is a yellow-skinned human child with inverse-colored eyes who wears a long-sleeve black shirt with a purple stripe, brown shorts and black boots. They have medium-length straight brown hair that’s spikes and flows at the end, short and choppy bangs, and a fearful expression.  Just like the first human, they have no stated gender and are solely referred to with "they/them" pronouns throughout the game, or by generic terms (such as "child", "human", or "kid).