Design credits include: Mappa Mundi, Frozen, The Waiting Room, The Red Balloon (National Theatre); Titus Andronicus (Royal Shakespeare Company); Othello [Trafalgar Studios]; The Solid Gold Cadillac (Garrick); A Busy Day (Lyric Theatre); Peggy Sue Got Married (Shaftsbury Theatre); The Snowman (Peacock Theatre) Toyer, Betty and Jane (Arts); The Three Sisters on Hope Street, The Glass Room, Gone to L.A. (Hampstead Theatre); Henry IV parts I and II (Washington Shakespeare Company, USA); West Side Story, The Sound of Music (Stratford Festival, Canada); Hamlet (Elisnore, Denmark);Oleanna, Educating Rita, Pravda, The Critic, The Real Inspector Hound (Chichester);

Ruari has designed for almost all the regional theatres in the United Kingdom including; Birmingham Rep [Associate Artist], West Yorkshire Playhouse, Northern Stage, Watford Palace, Bristol Old Vic, Nottingham Playhouse, Plymouth Theatre Royal, Liverpool Everyman and Playhouse, Derby Playhouse, Salisbury Playhouse, Theatr Clwyd.

Opera credits include: Der Freischutz (Finnish National Opera); Peter Grimes, Cosi fan Tutte (Luzerner Opera); La Cenerentola, Il Barbiere di Siviglia (Garsington); L’Italiana in Algeri (Buxton); Les Pelerins de la Mecque, ZaZa (Wexford).

Ballet credits include: Bruise Blood (Shobana Jeyasingh Dance Company), Landschaft und Erinnerung (Stuttgart Ballet, Germany); The Protecting Veil (Birmingham Royal Ballet), The Snowman (Seoul, London, Birmingham Rep, Tour).