Mrs. Mellinger

Mrs. Mellinger is a holophonor teacher, who has taught both the Robot Devil and, though after the latter's flawed performance of The Grumpy Snail, she angrily admitted to that she simply cannot teach Fry (whom she referred to as "your child").

According to the Robot Devil, she used the term "stupid fingers" for people who cannot play the holophonor.

Trivia

 * She danced with Fnog at the 100th Delivery Party.