János

 (pronounced "Iannaws") is a janitor at the Vampire State Building. In 3013, he poured some champagne for a date between and. He was then called to the 237th-floor 's room. Fry and Leela did not drink the champagne until many years later.

Trivia

 * The name "" is the form of the name "John".
 * János bears a resemblance to  character, who too is a blue vampire.