Haley trained professionally at Laine Theatre Arts, The Dance School of Scotland and with the Royal Ballet at White Lodge. Her theatre credits include: Marty in Grease (UK Tour), Sandy in Grease (UK Tour and Dominion Theatre), Chicago (Asian Tour, Japan, South Korea a UK No 1 tour), the opera Othello (Haddo House, Aberdeen), Thoroughly Modern Millie (Shaftesbury Theatre, London), Saturday Night Fever (The Apollo Theatre) and most recently in A Midsummers Night’s Dream, Taming of the Screw and The Boyfriend (all at the Open Air Theatre, Regents Park) and Follies (Royal & Derngate Theatre, Northampton) and most recently Sophie in the International Tour of Mamma Mia. Pantomimes include Dick Whittington (Bromley, Churchill Theatre) and Jack and the Beanstalk (Plymouth Theatre Royal).