

Grainne played the role of Fantine in the London production of Les Miserables at three separate stages of the show’s history making her the longest holder of that role in the show’s West End history.
Grainne started singing professionally as a country singer in Ireland, winning RTE’s Best Country Singer award. Her theatre debut in Voices at the Olympia Theatre opposite Colm Wilkinson led to an appearance at the National Concert Hall and an invitation by Sir Tim Rice to sing Marie in Tycoon at the Sydmonton Festival. Grainne is a regular soloist with the Danish Radio Orchestra and has toured with them extensively throughout Europe and Asia. For the DRO, Grainne played Florence in Chess throughout Denmark and Gertrude in the musical adaptation of Hamlet for Danish Television. She has also been a regular guest soloist with the Danish Philharmonic. Other solo concert appearances include the RTE Concert Orchestra, The Royal Philharmonic Orchestra, and the BBC Concert Orchestra. Grainne appeared as soloist for BBC 1’s Tribute to Gershwin at the Royal Albert Hall.
Recordings include the role of Ellen on the original cast recording of Miss Saigon (Germany), A Night at the Musicals with the London Philharmonic Orchestra and Andrew Lloyd Webber’s Essentials with the Munich Symphony Orchestra. She can also be heard live with her three sisters on their CD simply entitled SISTERS!
| Production | Role | Director | Company |
|---|---|---|---|
| Phantom 25th Anniversary | Factory Girl | Laurence Connor and James Powell | |
| Cappuccino Girls | Demi | Grand Gate Theatres | Anthony Williams |
| Grizabella | Cats | UK Tour 2007/2008 | Trevor Nunn |
| There's Always a Woman | Woman 1 | Bridewell Theatre | Clive Paget |
| Fantine | Les Miserables | Palace Theatre | Trevor Nunn/John Caird |
| Florence | Chess | Prince Edward Theatre | Trevor Nunn |
| Guilieta | Aspects of Love | Prince of Wales Theatre | Trevor Nunn |
| Janet | The Rocky Horror Show | National Tour | Vivyan Ellacott |
| Ellen | Miss Saigon | Drury Lane | Nick Hytner |
| Ellen | Miss Saigon | Stuttgart | Nick Hytner |
| Grizabella | Cats | Hamburg | Trevor Nunn |
| Eva Peron | Evita | Gaiety Theatre | Anthony Williams |
| Mary Magdalene | Jesus Christs Superstar | European Tour | Hugh Wooldridge |
| Cinderella | Into The Woods | Library Theatre | |
| Manchester | Roger Haines |