Broadway theatre | West End theatre | musical theatre | Royal National Theatre | theatre | Royal Court Theatre | American Ballet Theatre | Musical theatre | National Theatre | Theatre Royal, Drury Lane | Bolshoi Theatre | Abbey Theatre | Haymarket Theatre | Theatre Royal | Play (theatre) | Globe Theatre | Theatre | Mariinsky Theatre | Manhattan Theatre Club | Lyric Theatre | Théâtre du Châtelet | Her Majesty's Theatre | Grand Théâtre de Genève | Théâtre des Champs-Élysées | Theatre 625 | Goodman Theatre | Thomas Wolsey | Sydney Theatre Company | Lyceum Theatre, London | Gaiety Theatre, London |
The Sacred Flame by W. Somerset Maugham (Autumn 2012) - Touring from September 2012 to the following venues: Rose Theatre, Kingston, Northern Stage, Newcastle upon Tyne, Oxford Playhouse, New Wolsey Theatre, Liverpool Playhouse, Yvonne Arnaud Theatre, Theatre Royal, Brighton, The Nuffield Theatre Southampton, and Cambridge Arts Theatre.
In February–March 2009, Harries played Guy Jones in Alan Ayckbourn's comedy A Chorus of Disapproval at the New Wolsey Theatre, Ipswich, and the Colchester Mercury Theatre, alongside Harry Secombe's daughter, Katy.