Fantastic Dan is a pilot and a sky-writer for hire.
He seemingly lives inside the Whack-A-Mole game at the visiting carnival, and is hit over the head by Nelson. However, he is later shown to own a sky-writing business and helps Apu deliver a Valentine's Day message to his wife Manjula. This was jeopardized by a jealous Homer Simpson who thought Apu was going to ruin his marriage by having such a great one himself. Fantastic Dan was already up in the air when Homer started wrestling with him to stop the message. Homer succeeds in knocking off the tank of 'sarin' used to write the message but the bulk of it is still delivered (with most of the women in Springfield concluding it is for them, saving many relationships). He then fought Homer in the passenger seat out of rage over Homer ruining his job, causing the plane to spin out of control and nearly kill Apu and Elton John. Dan flies upside down over a rose farm, sending Homer hurtling through the plants, before flying off, with Homer landing in the garden of 742 Evergreen Terrace (ironically, this action ended up saving Homer's relationship with Marge). According to Dan when questioned by Apu about the sarin tank, he mentions that it lacks sarin gas despite the name and the tank was bought from the Peace Corps surplus.