Mark Voorsanger has managed and directed the development of CD-ROM titles, cartridge-based video games, standard PC titles, full-motion video-based products, and other cutting-edge systems.

Before founding ToeJam & Earl Productions with Greg Johnson, Mark was a lead programmer for Hasbro's project NEMO, where he helped to develop the first full-motion interactive games for in-home use. That work was eventually to become Night Trap , for the Sega CD. Still earlier in his career, he programmed two games for Imagic: Fathom for the ColecoVision, and Demon Attack for the Tandy Color Computer.

Throughout 1999, Mark served as Project Lead for ePlanet, Inc. , where he led the team to create Freeblenux, the world's first virtual alien with the gift with sight. This ground-breaking product, built for personal computers with a digital video camera attached, attracted the interest and financial backing of such prestigious partners as Intel, Mattel, Logitech, Hasbro, Nickelodeon, and Lego.

Mark has consulted in the design and development of games with companies such as LucasArts Entertainment, Activision, and Accolade.

Mark received his Bachelors of Science in Electrical Engineering and Computer Science from the University of California at Berkeley.