| Oedipus (1968)           | 
                                                                                        Adaptor           | 
                                                                                                   | 
                                                                                        1968           | 
                                                                                        National Theatre (NT, London; aka Royal National Theatre)           | 
              
          
                                                                                        | Orpheus (1971)           | 
                                                                                        Writer           | 
                                                                                                   | 
                                                                                        1971           | 
                                                                                                   | 
              
          
                                                                                        | Oedipus Rex (1988)           | 
                                                                                        Adaptor           | 
                                                                                                   | 
                                                                                        1988           | 
                                                                                        Royal Shakespeare Company (RSC)           | 
              
          
                                                                                        | Oedipus Rex (1988)           | 
                                                                                        Adaptor           | 
                                                                                                   | 
                                                                                        1988           | 
                                                                                        Royal Shakespeare Company (RSC)           | 
              
          
                                                                                        | Tales From Ovid (1999)           | 
                                                                                        Writer           | 
                                                                                                   | 
                                                                                        1999           | 
                                                                                        Royal Shakespeare Company (RSC)           | 
              
          
                                                                                        | The Oresteia (Part 1 The Home Guard; Part 2 Daughters of Darkness) (1999)           | 
                                                                                        Writer           | 
                                                                                                   | 
                                                                                        1999           | 
                                                                                        National Theatre (NT, London; aka Royal National Theatre)           | 
              
          
                                                                                        | Alcestis (2000)           | 
                                                                                        Writer           | 
                                                                                                   | 
                                                                                        2000           | 
                                                                                        Northern Broadsides           | 
              
          
                                                                                        | Alcestis (2001)           | 
                                                                                        Writer           | 
                                                                                                   | 
                                                                                        2001           | 
                                                                                        Northern Broadsides, BBC (British Broadcasting Corporation)           | 
              
          
                                                                                        | Alcestis (2007)           | 
                                                                                        Adaptor           | 
                                                                                                   | 
                                                                                        2007           | 
                                                                                        Handcart Ensemble, The Salvation Army's Theatre 315           | 
              
          
                                                                                        | Alcestis (2008)           | 
                                                                                        Writer           | 
                                                                                                   | 
                                                                                        2008           | 
                                                                                        Iris Theatre, London           | 
              
          
                                                                                        | Oedipus (2011)           | 
                                                                                        Translator           | 
                                                                                                   | 
                                                                                        2011           | 
                                                                                        Stanford Summer Theater Programme, Stanford University           | 
              
          
                                                                                        | Klytaimnestra (2022)           | 
                                                                                        Translator           | 
                                                                                                   | 
                                                                                        2022           | 
                                                                                        Toneelhuis, STAN, Olympique Dramatique           |