originally drew Phineas on a piece of
butcher paper in
South Pasadena, California.
Dan Povenmire and Jeff "Swampy" Marsh had conceived the idea of the
Phineas and Ferb series while working as layout artists on
The Simpsons. After planning the basics of the show, the two began laying out characters. Povenmire, eating dinner with his family at a Wild Thyme restaurant in
South Pasadena, California, drew a quick sketch of a "triangle kid." and with reference to the character
Phileas Fogg (often misreferenced as "Phineas Fogg") from
Around the World in 80 Days (1873). After designing the show, the two had significant difficulties getting the series
green lit. It was not picked up for fifteen years. In their final pitch to the Walt Disney Company, the creators designed a recorded
storyboard, featuring a very rough outline of characters. The
prototype Phineas was ruder to others than the version in the eventual show, where the creators decided to make him more good-natured. The goal while drawing characters was to make them simple enough to be drawn by child viewers and be recognized by
silhouette. Phineas's eyes lie on the top of his head and are of oval shape. For his hair, three "tufts" are put in the back and front, while three freckles lie underneath. For the ear, a small 3 is used to represent the
ear lobe. was cast for the role of Phineas. Martella originally auditioned for the role five months before his initial pickup, but was left without feedback for the time. When Dan Povenmire was given a tape of Martella in
Everybody Hates Chris, he called him to do Phineas for the pilot. In interviews Martella has said that he enjoys working on the series and voicing Phineas, and appreciates the opportunity to work alongside guest stars, especially
Malcolm McDowell. and Phineas has several recurrent lines that are featured in most episodes. When he comes up with an idea of what adventure he and his brother are going to have that day, he says "Ferb, I know what we're gonna do today!" During the course of an adventure, Phineas is generally asked by a disbelieving adult "Aren't you a little bit young to be..." doing whatever he's doing in that episode. Phineas generally answers "Yes, yes we are," though on a few occasions has responded "No" or "Well, I don't think so." In every episode, Phineas and Ferb's pet
platypus, Perry, disappears to carry out his job as a
secret agent. The kids almost always notice this, asking "Hey, where's Perry?" Then, when Perry comes home, they say, "Oh, there you are, Perry." Discussing Perry, co-creator Povenmire cited the example of his own pet cat, Sprocket, which he claimed led a "secret life" with his neighbors in order to get extra food. ==Characterization==