Characters played by Kathy Levin
Gina Cross
HEV Suit
Black Mesa Transit System
Characters played by Lani Minella
Colette Green
Characters played by Harry S. Robins
Scientists
HECU Soldiers
Characters played by Mike Shapiro
Security Guard Barney Calhoun
Otis
Scientists
Security Guards
Male Black Ops
HECU Soldiers
Characters played by Jon St. John
Richard Keller
Dr. Rosenberg
HECU Soldiers