Susan Egan

as Narrator

Linus Torvalds

as Himself - Creator, Linux Kernel

Richard M. Stallman

as Himself - Founder, GNU Project

Eric S. Raymond

as Himself - Author

Bruce Perens

as Himself - Author, Open Source Definition

Larry Augustin

as Himself - Co-Founder, CEO, VA Linux Systems

Michael Tiemann

as Himself - Co-Founder, Cygnus Solutions

Brian Behlendorf

as Himself