The research group DICAT (http://www.uv.es/dicat/index_en.html) has been working for almost twenty years on the creation of research instruments that will enhance scholars" knowledge of Early Modern Spanish theater through the use of digital tools that create new ways to combine and apply data.1 The database Diccionario biográfico de actores del teatro clásico español (DICAT) (Ferrer Valls) was the result of work done during nearly fifteen years. The DICAT group created a database with almost five thousand entries, which document the activity of actors, actresses, heads of companies, and musicians who worked in Spanish professional theatrical companies during the sixteenth and seventeenth centuries. We also included five hundred digitized signatures and a visual database with two hundred images and videos, together with a digitalized edition of the unpublished manuscript Confirmación de la Cofradía de la Novena, which includes the documents and regulations related to the 1634 foundation of the actors" guild.