Clelia played  Niamh Brennan for 22 years in RTÉ’s long-running drama series and flagship show FAIR CITY.
She played the role of Lorraine in Deadpan Picture’s new comedy series for RTÉ 2, NOWHERE FAST, created by Alison Spittle.

On stage, Clelia has played the role of Maeve in a touring production of BOOM by Isobel Mahon, directed by Caroline Fitzgerald.
Other recent theatre credits include the role of Lulubelle LaVelle in John Murphy’s touring musical ELVIS IS MY DADDY, and the role of Frau Gabor in SPRING AWAKENING, directed by the internationally-acclaimed György Vidovszy.

Recent film credits include Vivienne de Courcy’s feature DARE TO BE WILD, Jack Conroy’s THE GAELIC CURSE, Jason Figgis’ URBAN TRAFFIC, JFK – THE BADGEMAN CONSPIRACY directed by John Sheridan and Paul Valentine, and the short film CLEAN SLATE directed by Will Morgan.

Other film work includes GRABBERS for Samson Films, Parallel Pictures’ THE GIFT OF THE MAGI, and Stephen Kane’s award-winning THE CROOKED MILE.

In 2015 Clelia co-produced and starred in Jennifer Davidson’s award winning short  WAITING FOR TOM directed by Ruth O’Looney, which was officially selected to screen at the Galway Film Fleadh, Cork, Foyle, Dingle and Chicago film festivals. It also screened in the Irish Film Festival London where it won for Best Short. Clelia is also one of Ireland’s most experienced V.O. artists, with a career that has seen her lending her voice to some of Ireland’s biggest brands and best-loved shows.

Radio work includes working with John Boorman on his radio play THE HIT LIST, Bill Hugh’s GRACE, Joe O’Byrne’s CRANE, and Catherine Brennan’s THE GUILTY HEART. In 2017 she voiced the role of Miss Higgin’s in KINSEY ONE THROUGH FIVE by Veronica Coburn, produced by Kevin Reynolds for RTÉ Radio Drama on One.