Darcy is an author, drama teacher, actor, theatresports player, and director. Her versatile talents have seen her appear in television commercials, films, and on stage.

In 2022, Darcy was one of six finalists in the Penguin Books Literary Prize for her adult crime novel, The Fall Between. This accolade led to a literary contract with Penguin Books for her Detective Giles series. Her first novel, The Fall Between, was released in May 2023, and her second novel, Burning Mountain, followed in April 2025.

In 2024, The Fall Between was nominated for The Davitt and The Ned Kelly Awards for Best Debut Crime Novel, further cementing Darcy's talent in the literary world.

Her work extends to writing comedy for radio, stage, media personalities, comedians, and theatre restaurants. Her plays, poems, articles, and short stories have been published in magazines, journals and anthologies.