Gylfie is the deuteragonist of Both the first half of the Guardians of Ga'Hoole book series and it's 2010 film Legend of the Guardians: The Owls of Ga'Hoole and a member of The Band.
She is an elf owl and is best friends with the main protagonist Soren and along with their friends and fellow band members Digger and Twilight, battle a group of evil owls called The Pure Ones who are led by Soren's evil brother Kludd (also known as Metal Beak) and his mate Nyra (though in the film version, Kludd and Metal Beak are separate characters with Kludd being a Pure One member rather than the leader or Nyra's mate).
In the film adaption, Gylfie is voiced by Emily Barclay.
- In the film, it appears that Gylfie might have feelings for Soren as she did act jealous when he was with Otulissa.
- Gylfie is one of two members of the Band to have been born in the Desert of Kuneer. The other being Digger.
- In the first book "The Capture", Gylfie says that her grandmother and a Pygmy Owl founded the Small Owl Society, who charter is to prevent cruel and tasteless remarks about size.