Sioned trained at the Royal Welsh College of Music and Drama.
Theatre credits include: Christmas Allsorts (Queen’s Theatre, Hornchurch), Camelot (Watermill Theatre), Gina in Amélie (Watermill Theatre); Sunshine on Leith (West Yorkshire Playhouse and UK tour); Made in Dagenham (Queen’s Theatre, Hornchurch & New Wolsey, Ipswich); Roald Dahl’s The Witches (Curve & Hong Kong); The Pearl (The Production Exchange); James & the Giant Peach (Birmingham Old Rep & UK Tour); Robin Hood & The Babes in the Wood (New Wolsey Theatre, Ipswich); Chess (Princess of Wales Theatre, Toronto & UK Tour); Jungle Book (Lyric Theatre, Belfast); The Poor Soldier (Theatre Royal, Bury St Edmunds); Robin Hood & The Babes in The Wood (Clwyd Theatre Cymru); Sunset Boulevard (Harold Pinter, West End); Animal Farm (West Yorkshire Playhouse) and Amadeus (Wilton’s Music Hall).
Television credits include: Shelley in Casualty (BBC) and Sam ar y Sgrin (Tinopolis, S4C).
MD work includes: Fiddler On The Roof (Curve Theatre); A Grand Night For Singing (GSA) and Oklahoma! (Curve Theatre).