Joshua Davis and Brendan Hall (generative design using chance operations, Joshua is artist, Brendan is programmer)
Hillman Curtis (pioneer in Flash, good short film documentaries about artists/designers)
Brendan Dawes (interaction designer)
Jared Turnbull (levitated.net, etsy.com)
Ben Fry and Casey Reas (creators of Processing.org, an open-source computer programming project for visual designers and artists)