She is joined by Joanna Monro as Rosie, Kim Ismay as Tanya, William Tapley as Sam Carmichael, Oliver Senton as Harry Bright, Mark Gillis as Bill Austin, Dani De Waal as Sophie Sheridan, Craig Fletcher as Sky, Hannah Fairclough as Ali, Rachel Sargent as Lisa, Warren Sollars as Pepper and Alex Jessop as Eddie. At certain performances, the role of Donna Sheridan will be played by Melissa Jacques.

Triplett, who as a vocalist has twice been part of groups representing Britain at the Eurovision Song Contest earlier in her career, has appeared regularly in the West End, starring as Reno Sweeney in the National's production of Anything Goes that transferred to the West End's Theatre Royal, Drury Lane, as Miss Adelaide in Guys and Dolls, as Grizabella in Cats and as Roxie Hart in Chicago, amongst numerous other credits.

To book tickets, contact the box office on 0844 482 5115, or visit www.mamma-mia.com.