Lisa Williamson was born in Nottingham in 1980. She spent most of her childhood drawing, daydreaming, and making up stories in her head, although she never got around to writing them down.

As a teenager, she was bitten by the acting bug and at 19 moved to London to study drama at university. Following graduation, Lisa adopted the stage name of Lisa Cassidy and spent several happy and chaotic years occasionally getting paid to pretend to be other people.

Between acting roles, she worked as an office temp and started making up stories all over again, only this time she had a go at writing them down. Lisa lives in London, where she is lucky enough to split her time between writing and acting. In her spare time, she reads a lot of books and continues to daydream.