Work includes: Maria Kizito, The Saint Plays, Heavenly Shades of Night Are Falling, No Time Like the Present, Wolf at the Door, Tailings, Beginner, and Ideas of Good and Evil.

He collaborated with Puppeteer Janie Geiser on a CNT produced version of Poe's William Wilson: Invisible Glass. He is an artistic associate at San Francisco's Theatre of Yugen. He is working through the school to develop a Center for the Study of Genocide and Culture (with Jean-Pierre Karegeye with Interdisciplinary Genocide Studies at Berkeley), whose aim is to explore theatrical responses to events in Rwanda, 1994, and to promote peace building through the arts.

Graduate, New Dramatists. Ehn is married to Patricia Chanteloube-Ehn.