Susan Egan

Narrator

Linus Torvalds

Himself - Creator, Linux Kernel

Richard M. Stallman

Himself - Founder, GNU Project

Eric S. Raymond

Himself - Author

Bruce Perens

Himself - Author, Open Source Definition

Larry Augustin

Himself - Co-Founder, CEO, VA Linux Systems

Michael Tiemann

Himself - Co-Founder, Cygnus Solutions

Brian Behlendorf

Himself