Katie

Katie is a supporting deuteragonist of the animated series, Phineas and Ferb. She is the blonde-haired member of Fireside Girls Troop 46231.

Biography
She, along with Ginger Hirano, Milly, and Holly help Phineas and Ferb create S'winter ("S'Winter"). She helps build the time machine with the rest of the troop ("It's About Time!") (the second time when the Fireside Girls are saving Phineas, Ferb, and Candace). She and Holly also participated in the Chariot Race with Isabella ("Greece Lightning").

Katie interrupted by asking Phineas to sign some liability wavers just when Isabella was about to ask him to the dance ("Out to Launch"). She somehow got injured as a result of the Fireside Girls' attempt at running a lemonade stand, shown by her hands and part of her face bandaged up. ("At the Car Wash").

Appearance
Katie has blond hair in two low pigtails with red elastics, green eyes and is light-skinned. She wears a uniform with a red collar with large shoes and no socks, but in winter, she wears a red sweater with orange kerchef, yellow boots, has brown elastics in her hair, and wears an orange hat. She does not wear leggings in winter, unlike the other girls.

Known patches

 * Help Thy Neighbor Patch (About 52 as of "Isabella and the Temple of Sap")
 * Aquatic Safety Patch ("Lawn Gnome Beach Party of Terror")
 * Sewing Patch ("Run Away Runway")
 * Tent Pitching Patch, Marshmallow Patch ("Get That Bigfoot Outa My Face!")
 * Aeronautic Patch ("De Plane! De Plane!")
 * Sap Collecting Patch ("Isabella and the Temple of Sap")
 * Mountain Moving Patch ("Phineas and Ferb-Busters!")
 * Desert Tracking Patch, Rain-forest/Jungle Navigation Patch, Rock-climbing Patch, Non-power Flight Patch, Concussion First-aid Patch ("The Great Indoors")
 * Bee Keeping Patch ("Bee Story")
 * Advanced Knot Tying Patch ("Bee Story")

Background information

 * She and Gretchen are the only Fireside Girls who appear in the Phineas and Ferb Nintendo DS game.
 * Before Unknown Fireside Girl (blond) appearance, she was the only Fireside Girl that has blond hair.
 * She and Ginger appeared at the opening of Phineas and Ferb's roller coaster ("Rollercoaster").
 * Her name was revealed in "Isabella and the Temple of Sap".
 * She has been seen selling cupcakes with Gretchen or Milly to Heinz Doofenshmirtz.
 * Her first speaking role was interrupting Isabella in Out to Launch, just as she was about to ask Phineas to the dance.
 * She is one of Fireside Girls who doesn't wear socks as part of her uniform. The other is Unknown Fireside Girl (brown), from "Tour de Ferb".
 * In the ending song of "Rollercoaster: The Musical!", Carpe Diem, there are two different Katies shown; the one from the beginning of the Original Rollercoaster Episode, and the Fireside Girl Katie.
 * She along with Milly and Gretchen are the only girls to appear in "Phineas and Ferb: The Best LIVE Tour Ever!"
 * She, Milly and Gretchen are the only ones to be seen selling Fireside Girl cupcakes to Heinz Doofensmirtz.
 * She took down a burly man much bigger than her in arm wrestling, which implies that she is extremely strong for her age and size. ("Ferb TV")
 * She may be ambidexterious and can play the guitar, the violin, and the trumpet. ("The Flying Fishmonger", "Out to Launch", "Phineas and Ferb Summer Belongs to You!", "Ferb TV")
 * She and Holly are the only girls besides Isabella to Ride the Chariot in "Greece Lightning".
 * She, Adyson and Gretchen had been addressed by name in "Isabella and the Temple of Sap "
 * In "Tri-Stone Area," she is seen without her pigtails as a cave girl while singing "Zubada."
 * A running gag in "Bee Story" is Katie saying or doing unusual things only to get a glance from another fireside girl.

Songs Katie has sung

 * Go, Go, Phineas
 * Watchin' and Waitin'
 * Phintastic Ferbulous Car Wash
 * Come Home Perry
 * The Fireside Girls
 * Wedding Adventure
 * The Yellow Sidewalk
 * What'cha Doin?
 * Carpe Diem