Beginning as an actor, Mary Cecilia moved from her island home of Barbados to New York City to pursue her BFA from NYU's Tisch School of the Arts, focusing on theatre and dramatic writing. After graduating in 2022, she expanded upon her work as a theatre director and playwright.

This culminated in her being chosen as a fellow for The Royal Court's Writing for Performance Caribbean Fellowship, where she rediscovered the power in her voice as a West Indian storyteller and developed a new full-length play, Blood In De Roots.

Mary Cecilia sought to grow her skill set to include film and television, prompting her to start her MFA in Film in the Fall of 2023 at Columbia University’s School of the Arts.

Most recently, Mary Cecilia was selected as the inaugural fellow for the Kurt P. Tauber Film Fellowship and chosen as a recipient of the Foreign Hollywood Press Association Fellowship for Columbia University.

Her work primarily focuses on highlighting the lives and experiences of women, with a particular focus on women of colour from underrepresented parts of the world, with her West Indian culture permeating her work.