Adyson Zoetwater is the Fireside Girl who has straight brown hair, green eyes, and a red headband (which sometimes isn't seen in a few episodes.) She wears a sleeveless uniform with a split in the collar and sides at the bottom.
She, Isabella, Gretchen, and Milly were the backup singers for Phineas and the Ferb-Tones, as the Ferbettes in "Flop Starz." Immediately following Phineas and Ferb's treehouse fight, as all the Fireside Girls are cheering, Adyson's mouth moves along with the line "Way to go!" in "Tree to Get Ready." In "Interview With a Platypus", she and Milly were explaining television to Isabella's dog, Pinky, unsuccessfully.
Adyson, along with most other Fireside Girls, knows about Isabella's desire to marry Phineas.
Background Information Edit
- Her first cameo speaking line was in "Tree to Get Ready", while her first true speaking line occured within "Isabella and the Temple of Sap", where she made a sarcastic comment on the "Help Thy Neighbor" patch.
- Her name was revealed in one of Swampy's Correspondence. The first on-screen mention is in Isabella and the Temple of Sap, and her surname was revealed in Fireside Girl Jamboree, and again confirmed in one of Swampy's Correspondence.
- She was one of the guitarists with Katie in the new version of The Flying Fishmonger, but only visible for a second.
- She was a back-up singer with Gretchen in the song S'winter.
- Adyson is based on Jeff "Swampy" Marsh's granddaughter. 
- She used to hold the record for "Most Patches earned in One Day", which was 6. Candace broke her record in "Fireside Girl Jamboree", however, with a massive total of 49 patches, 50 if you count the record patch.
- She has a rather sarcastic sense of humour ("Let me guess, the Let's Help Phineas and Ferb patch?"). ("Isabella and the Temple of Sap")
- She is the only Fireside Girl besides Isabella to have her surname revealed.
|Phineas Flynn | Ferb Fletcher | Isabella Garcia-Shapiro | Buford Van Stomm | Baljeet | Candace Flynn | Vanessa Doofenshmirtz | Django Brown | Gretchen | Holly | Katie | Milly | Ginger | Adyson Zoetwater | Jeremy Johnson | Suzy Johnson | Stacy Hirano | Jenny | Mindy | Wendy | Coltrane | Irving | Carl | Johnny|
|Linda Flynn | Lawrence Fletcher | Heinz Doofenshmirtz | Charlene Doofenshmirtz | Mrs. Johnson | Danny, Swampy, en Bobbi Fabulous (Love Händel) | Dr. Hirano | Vivian Garcia-Shapiro | Beppo Brown | Major Monogram | J.B. | Roger Doofenshmirtz | P. P. Otter | Ben Baxter | Clyde Flynn | Betty Jo Flynn|
|Perry het Vogelbekdier | Pinky de Chihuahua | Suzy's naamloze poedel | Biff | Herman het Egeltje | Agent C | Agent D | Agent W | Agent C | Bucky | Goldie (leeft in de oceaan) | Sterneus Mol | Steve|
|Isabella | Gretchen | Holly | Katie | Milly | Ginger | Adyson | Candace Flynn | Onbekende blondine | Onbekende brunette|
|Achtergrond en geschiedenis|
|Stichtster | Lied | Behaalde badges|
|Phineas en de Ferb-Toons|
|Phineas Flynn (Zanger/Gitarist) | Ferb Fletcher (Keyboard)|
|Isabella Garcia-Shapiro | Gretchen | Milly | Adyson Zoetwater|
|Gitchee Gitchee Goo|