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
Danny O'Dwyer
Half-Life 2: 20th Anniversary Documentary
Released
Bande-annonce