Castine was born in New York City in the year of the snake. He now lives in Berlin. In between, he studied variously at the State University of New York at Stony Brook, the Hochschule der Künste Berlin, and the Technische Universität Berlin (composition, computer science, musicology, communications science; not necessarily in that order) and has worked in Bergen and Edinburgh. His activities include organizing the International Computer Music Conference in Berlin (ICMC 2000), a stay as artist-in-residence in Bergen, Norway (thanks to BEK and USF), teaching Max/MSP at the UdK Berlin and elsewhere, receiving special recognition in the Haifa International Composers Competition, and enhancing a new musical instrument called the Skoog.
Castine also maintains a page on Facebook with further information, links, and news.