Characters played by Kathy Levin
HEV Suit
Gina Cross
Black Mesa Transit System Announcer
Characters played by Lani Minella
Colette Green (PS2 Version)
Characters played by Brice Armstrong
Dr. Richard Keller
Characters played by Harry S. Robins
Smithers
Isaac Kleiner
Eli Vance
Scientists
HECU Soldiers
Characters played by Mike Shapiro
Security Guard Barney Calhoun
G-Man
Nihilanth
HECU Soldiers
Security Guards
Scientists