Lorraine de Sagazan studied philosophy and trained as an actress from 2006 to 2010. At the Studio-Théâtre d'Asnières - Centre de Formation des Apprentis comédiens (now the ESCA), she learned to produce collectively. It was here that she met the men and women who are still her acting partners and peers today. She decided to turn to directing in 2015. At a time when there was only one directing course at the École nationale du Théâtre de Strasbourg, Lorraine de Sagazan asked those who inspired her to follow them for the time of a creation: Thomas Ostermeier, Marius von Mayenburg, Falk Richter and Romeo Castellucci.
Following the presentation at La Loge - Paris of Ceci n'est pas un rêve (2014), her first collective work with four Studio-Théâtre acolytes, she was invited to take part in the Fragments d'Été Festival in Paris, for which she chose to work on an adaptation of Lars Norén's Démons. The company La Brèche was founded on this occasion, in 2015. This manifesto piece reveals her focus on both the author's gesture and the status of the spectator, his place, his gaze, his state. It marks the start of what can be seen as a first cycle in her career, devoted to adapting texts from the classical and contemporary repertoires, and to the way in which “the fiction of a work confronts reality”.
In 2016, Lorraine de Sagazan signed the second part of this cycle with an adaptation of Henrik Ibsen's A Doll's House, accentuating the search for what, today, reactivates the shock of past masterpieces. In 2017, she directed the winning text of the Prix RFI Théâtre 2017: La Poupée Barbue by Édouard Elvis Bvouma, the first show for young audiences to tour eight African countries. In 2018, commissioned by the Conseil Général du 93, she created Les Règles du jeu by Yann Verburgh, a second project aimed at young people. That same year, in Vienna, she staged an adaptation of Anton Chekhov's Uncle Vanya with Austrian actors. She closes her first cycle in 2019 with L'Absence de père, based on Anton Chekhov's Platonov, which she co-wrote with playwright Guillaume Poix.