Characters played by Robert Guillaume
Dr. Eli Vance
Characters played by Robert Culp
Dr. Wallace Breen
Characters played by Louis Gossett Jr.
Vortigaunt
Characters played by Michelle Forbes
Dr. Judith Mossman
Characters played by Merle Dandridge
Alyx Vance
Characters played by Mike Shapiro
Barney Calhoun
G-Man
Characters played by Harry S. Robins
Dr. Isaac Kleiner
Characters played by John Patrick Lowrie
Citizens
Misc. characters
Characters played by Mary Kae Irvin
Citizens
Misc. characters
Characters played by Ellen McLain
Overwatch
Characters played by Gautam Babbar
Self - Commentary
Characters played by Ted Backman
Self - Commentary
Characters played by Kelly Bailey
Self - Commentary
Characters played by Yahn Bernier
Self - Commentary
Characters played by Ken Birdwell
Self - Commentary
Characters played by Steve Bond
Self - Commentary
Characters played by Charlie Brown
Self - Commentary
Characters played by Charlie Burgin
Self - Commentary
Characters played by Greg Coomer
Self - Commentary
Characters played by Scott Dalton
Self - Commentary
Characters played by Jim Dose
Self - Commentary
Characters played by Laura Dubuk
Self - Commentary
Characters played by Azucena Duran
Judith Mossman- Spanish
Characters played by Dhabih Eng
Self - Commentary
Characters played by Chet Faliszek
Self - Commentary
Characters played by Adrian Finol
Self - Commentary
Characters played by Bill Fletcher
Self - Commentary
Characters played by Chris Green
Self - Commentary
Characters played by John Guthrie
Self - Commentary
Characters played by Jeff Hameluck
Self - Commentary
Characters played by Keith Huggins
Self - Commentary
Characters played by Brian Jacobson
Self - Commentary
Characters played by Lars Jensvold
Self - Commentary
Characters played by Erik Johnson
Self - Commentary
Characters played by Steve Kalning
Self - Commentary
Characters played by Marc Laidlaw
Self - Commentary
Characters played by Tom Leonard
Self - Commentary
Characters played by Kathy Levin
HEV Suit
Characters played by Randy Lundeen
Self - Commentary
Characters played by Ido Magal
Self - Commentary
Characters played by Gary McTaggart
Self - Commentary
Characters played by Jason Mitchell
Self - Commentary
Characters played by John Morello
Self - Commentary
Characters played by Gabe Newell
Self - Commentary
Characters played by Jake Nicholson
Self - Commentary
Characters played by Wade Schin
Self - Commentary
Characters played by Matt Scott
Self - Commentary
Characters played by Jay Stelly
Self - Commentary
Characters played by Bill van Buren
Self - Commentary
Characters played by Robin Walker
Self - Commentary
Characters played by Erik Wolpaw
Self - Commentary
Characters played by Douglas Wood
Self - Commentary
Characters played by Matt T. Wood
Self - Commentary