Katie

"Excuse me, Phineas. Can I get you to sign some liability waivers?"

- Katie

 is one of the Fireside Girls in Danville Troop 46231.

Biography
She, along with Ginger, Milly, and Holly helped Phineas and Ferb create S'winter ("S'Winter"). She also helped in building the time machine with the rest of the troop to rescue Phineas, Ferb, and Candace ("It's About Time!"). She and Holly also participated in the Chariot Race with Isabella as their leader ("Greece Lightning").

When Isabella was about to ask Phineas to the Night of the Falling Stars girls' choice dance, Katie interrupted by asking Phineas to sign some liability wavers regarding the upcoming space launch ("Out to Launch").

She sold cupcakes to Heinz Doofenshmirtz on two occasions: once with Gretchen and another with Milly ("Don't Even Blink", "Fireside Girl Jamboree"). 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, possibly by paper towels. ("At the Car Wash").

Physical Appearance
Katie has blond hair in two low pigtails with red elastics, green eyes and is light-skinned, and wears a uniform with a red collar with larger shoes and no socks.

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")
 * Flier Delivery Patch (Twice "The Remains of the Platypus")

Isabella Garcia-Shapiro
Katie, like the rest of The Fireside Girls, is aware of Isabella's crush on Phineas. Katie is willing to help Isabella.

The Other Fireside Girls
Katie, along with her troop mates frequently helps out with Phineas and Ferb's Big Ideas.

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 the first Coolest Coaster Ever and have appeared together since "Rollercoaster".
 * Her name was revealed in "Isabella and the Temple of Sap" by Holly.
 * Her first speaking role was interrupting Isabella in "Out to Launch", just as she was about to ask Phineas to the dance.
 * She is the only regular Fireside Girl who doesn't wear socks as part of her uniform.
 * During Carpe Diem of "Rollercoaster: The Musical!", two different Katies are shown; the one from the beginning of the "Rollercoaster", and the Fireside Girl Katie.
 * She, Milly and Gretchen are the only girls to appear in "Disney's 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 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, 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."
 * She and Holly are the only girls besides Isabella to Ride the Chariot in "Greece Lightning"