Mr. Pepalino appears to be a very small light mint-green fish with brown hair, and is balding. He wears a yellow shirt with brown pants and a dark blue tie.
Mr. Pepalino is first seen after Pearl accidentally crashed into him and he got stuck on her body when she tried to apply for a job at Hotdog on a String. However, Mr. Pepalino managed to get off of Pearl but ends up getting fried and burnt in the hot dog fryer nearby. After getting out, Mr. Pepalino said that he wasn't hiring anybody at the moment.