Catherine Doyle grew up in the West of Ireland. She holds a first-class BA in Psychology and a first-class MA in Publishing.

She is the author of the Young Adult Blood for Blood trilogy (Vendetta, Inferno, and Mafiosa), which is often described as Romeo and Juliet meets the Godfather. It was inspired by her love of modern cinema.

Her debut Middle Grade novel, The Storm Keeper's Island (Bloomsbury, 2018), is an adventure story about family, bravery, and self-discovery. It is set on the magical island of Arranmore, where her grandparents grew up, and is inspired by her ancestors' real-life daring sea rescues.

Aside from more conventional interests in movies, running, and traveling, Catherine also enjoys writing about herself in the third person.