The Characters

In the game, various characters would be mentioned, referenced, and even shown; listed below are the characters:
 * Mitchell Shephard
 * Adrian Shephard
 * Gordon Freeman
 * Adam
 * Nick
 * Boris
 * Sasha
 * Alex
 * Lieutenant Harvey
 * William L. Beck
 * Captain Roosevelt
 * Colonel Cue
 * Larry
 * Boston Joe
 * The President