Henry Kaiser is an American composer, musician and film producer. Recording and performing prolifically in many styles of music, Kaiser is a fixture on the San Francisco Bay Area music scene. He is considered a member of the "first generation" of American free improvisers. In 2001, Kaiser spent two and a half months in Antarctica on a National Science Foundation Antarctic Artists and Writers Program grant. He has subsequently returned for nine more deployments to work as a research diver. His underwater camerawork was featured in two Werner Herzog films, The Wild Blue Yonder (2005) and Encounters at the End of the World (2007), which he also produced, and for which he and Lindley composed the score.