This article discusses the relationship between drama and performance, using the Derridean concept of ‘supplement’ in theatre, which exceeds polarities and attempts a more dialectic approach. A review of Marvin Carlson’s theories of illustration, separation, translation, and fulfilment is a starting point for a comprehensive analysis of the views that encourage the binary drama-performance. This is examined in combination with Diane Taylor’s distinction between the ‘archive’, which preserves and bears all the written culture, and the ‘repertory’, which contains the world of performance. The ‘supplement’ holds two meanings: as a supplement, an external addition-to, and as a complement, a supplement-of, that comes in to fill a gap. One example is used to present the relationship between archive, repertory, and supplement: Brecht’s The Downfall of the Egotist Johann Fatzer. Theatre can be thought of in formations of heteropoietic sequence, through chains of supplements, including the texts, the performances, the rehearsal devices, the publication context, and the director’s notebooks. George P. Pefanis is a Professor in the Department of Theatre Studies at the National and Kapodistrian University of Athens, and also teaches theatre and cinema history at the Open University of Greece and Cyprus. His publications include Adventures of Representation: Scenes of Theory II, Spectres of Theatre: Scenes of Theory III (both 2013), and Theatre Adherents and Philosophers (2016). In 2006, he received the award for the best book in the study of theatre for The Kingdom of Eugena (2005).