Gabe Newell

Self - President

Viktor Antonov

Self - Artist

Dave Riller

Self - Level Designer (as David Riller)

Jeff Lane

Self - Level Designer

Jay Stelly

Self - Engineer

David Speyrer

Self - Engineer

Laura Dubuk

Self - Artist

Marc Laidlaw

Self

Mike Shapiro

Self - G-Man /Self - Barney Caloun