Training is the heart and vitality of Double Edge's creative process. Since 1982, when it was first developed by Klein based on her work with Rena Mirecka, Grotowski’s founding actor, DE training has grown to include work with large objects, developed by Klein and David Flaxman from 1985, and then outdoor work and spectacle developed with Carlos Uriona since 1996. Since 2011 Matthew Glassman has led the ensemble's training development. Vocal training is led by John Peitso, with Amanda Miller. The unique, holistic methodology engages the actor's full potential – physical, vocal, emotional, and imaginative – to drive individual exploration, ensemble collaboration, and performance creation.