Ian Brennan is a Grammy-winning music producer who has produced three other Grammy-nominated albums. He is the author of four books and has worked with the likes of filmmaker John Waters, Merle Haggard, and Green Day, among others. His work with international artists such as the Zomba Prison Project, Tanzania Albinism Collective, and Khmer Rouge Survivors, has been featured on the front page of the New York Times and on an Emmy-winning 60 Minutes segment with Anderson Cooper reporting. Since 1993 he has taught violence prevention and conflict resolution around the world for such prestigious organizations as the Smithsonian, New York's New School, Berklee College of Music, the University of London, the University of California-Berkeley, and the Accademia Nazionale delle Scienze in Rome. He lives in San Francisco, CA.

Guitarist and composer, Nels Cline, was named one of the "Top 100 Guitarists of All Time" by Rolling Stone magazine. Cline joined the band Wilco in 2004 and has played on over 200 albums by various artists as well as his own solo projects. He has collaborated with the likes of Yoko Ono, Ornette Coleman, Rickie Lee Jones, Wayne Kramer (MC5), Rufus Wainwright, Mike Watt (The Minutemen), Lee Randaldo (Sonic Youth), Lydia Lunch, and Billy Bragg.

Marilena Umuhoza Delli is an Italian Rwandan photographer, author, and filmmaker whose photographic work has been published around the world by VICE, Libération, Corriere della Sera, Le Monde, Rolling Stone, and Smithsonian among others, and has photographed the covers of more than three dozen international music albums. She has written two Italian-language books about racism and growing up with an immigrant mother in Italy's most redneck region.