2007 Collaboration with WWF France for the creation and performance of the play "Hasta la vida siempre", a burlesque and poetic comedy on ecology and sustainable development.
2011-2012-2013, Oscar Castro organises theatrical conferences at the Aleph (Ivry) with the TESPO (Experimental theater of Sciences Po students, to which he invites professors of Sciences Po Paris such as Max-Jean Zins, Delphine Grouès, Dominique Boullier.