Zylex

Zylex is a minor character appearing briefly in Bender's Big Score, and only appears at Elzar's restaurant where he is begging for food, when everyone have lost their jobs. Interestingly though, he is introduced in the special opening credits for the movie along with the other main characters, with a caption saying "And introducing Zylex".

Trivia

 * As specified in the commentary, Zylex was created specifically to be frustrating. He was introduced in the opening credits, and fans would be eagerly watching the movie, waiting for him to show up, only to be frustrated completely when he is onscreen for only one second.